automapper_validation/generated/fv2504/

invoic_conditions_fv2504.rs

// <auto-generated>
// Generated by automapper-generator generate-conditions
// AHB: xml-migs-and-ahbs/FV2504/INVOIC_AHB_2_5d_Fehlerkorrektur_20250623.xml
// Generated: 2026-03-12T10:18:43Z
// </auto-generated>

// LLM-produced bodies aren't idiomatic Rust — silence stylistic lints at
// file scope so `cargo clippy -D warnings` stays green. Correctness,
// suspicious, and perf categories stay on so real bugs still surface.
#![allow(clippy::style, clippy::complexity)]

#[allow(unused_imports)]
use crate::eval::format_validators::*;
use crate::eval::{ConditionEvaluator, ConditionResult, EvaluationContext};

/// Resolve the (DTM+137 date, resolved current date) pair used by Werktag
/// conditions [24]/[25]. Returns `None` if either side is missing or
/// unparseable — callers should treat that as `Unknown`.
fn dtm137_and_current_dates(
    ctx: &EvaluationContext,
) -> Option<(chrono::NaiveDate, chrono::NaiveDate)> {
    let current = parse_ccyymmdd_prefix(ctx.resolved_value?)?;
    let dtm137 = ctx
        .find_segments_with_qualifier("DTM", 0, "137")
        .into_iter()
        .find_map(|s| {
            s.elements
                .first()
                .and_then(|e| e.get(1))
                .filter(|v| !v.is_empty())
                .and_then(|v| parse_ccyymmdd_prefix(v))
        })?;
    Some((dtm137, current))
}

/// Generated condition evaluator for INVOIC FV2504.
pub struct InvoicConditionEvaluatorFV2504 {
    // External condition IDs that require runtime context.
    external_conditions: std::collections::HashSet<u32>,
}

impl Default for InvoicConditionEvaluatorFV2504 {
    fn default() -> Self {
        let mut external_conditions = std::collections::HashSet::new();
        external_conditions.insert(1);
        external_conditions.insert(2);
        external_conditions.insert(3);
        external_conditions.insert(7);
        external_conditions.insert(8);
        external_conditions.insert(11);
        external_conditions.insert(13);
        external_conditions.insert(15);
        external_conditions.insert(16);
        external_conditions.insert(28);
        external_conditions.insert(30);
        external_conditions.insert(31);
        external_conditions.insert(34);
        external_conditions.insert(37);
        external_conditions.insert(40);
        external_conditions.insert(45);
        external_conditions.insert(67);
        external_conditions.insert(68);
        external_conditions.insert(69);
        external_conditions.insert(72);
        external_conditions.insert(76);
        external_conditions.insert(492);
        external_conditions.insert(493);
        Self {
            external_conditions,
        }
    }
}

impl ConditionEvaluator for InvoicConditionEvaluatorFV2504 {
    fn message_type(&self) -> &str {
        "INVOIC"
    }

    fn format_version(&self) -> &str {
        "FV2504"
    }

    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult {
        match condition {
            1 => self.evaluate_1(ctx),
            2 => self.evaluate_2(ctx),
            3 => self.evaluate_3(ctx),
            4 => self.evaluate_4(ctx),
            5 => self.evaluate_5(ctx),
            6 => self.evaluate_6(ctx),
            7 => self.evaluate_7(ctx),
            8 => self.evaluate_8(ctx),
            9 => self.evaluate_9(ctx),
            10 => self.evaluate_10(ctx),
            11 => self.evaluate_11(ctx),
            12 => self.evaluate_12(ctx),
            13 => self.evaluate_13(ctx),
            14 => self.evaluate_14(ctx),
            15 => self.evaluate_15(ctx),
            16 => self.evaluate_16(ctx),
            17 => self.evaluate_17(ctx),
            18 => self.evaluate_18(ctx),
            19 => self.evaluate_19(ctx),
            20 => self.evaluate_20(ctx),
            21 => self.evaluate_21(ctx),
            22 => self.evaluate_22(ctx),
            23 => self.evaluate_23(ctx),
            24 => self.evaluate_24(ctx),
            25 => self.evaluate_25(ctx),
            26 => self.evaluate_26(ctx),
            27 => self.evaluate_27(ctx),
            28 => self.evaluate_28(ctx),
            29 => self.evaluate_29(ctx),
            30 => self.evaluate_30(ctx),
            31 => self.evaluate_31(ctx),
            32 => self.evaluate_32(ctx),
            34 => self.evaluate_34(ctx),
            36 => self.evaluate_36(ctx),
            37 => self.evaluate_37(ctx),
            40 => self.evaluate_40(ctx),
            41 => self.evaluate_41(ctx),
            42 => self.evaluate_42(ctx),
            44 => self.evaluate_44(ctx),
            45 => self.evaluate_45(ctx),
            47 => self.evaluate_47(ctx),
            48 => self.evaluate_48(ctx),
            49 => self.evaluate_49(ctx),
            50 => self.evaluate_50(ctx),
            51 => self.evaluate_51(ctx),
            53 => self.evaluate_53(ctx),
            54 => self.evaluate_54(ctx),
            55 => self.evaluate_55(ctx),
            56 => self.evaluate_56(ctx),
            57 => self.evaluate_57(ctx),
            58 => self.evaluate_58(ctx),
            59 => self.evaluate_59(ctx),
            60 => self.evaluate_60(ctx),
            61 => self.evaluate_61(ctx),
            64 => self.evaluate_64(ctx),
            65 => self.evaluate_65(ctx),
            66 => self.evaluate_66(ctx),
            67 => self.evaluate_67(ctx),
            68 => self.evaluate_68(ctx),
            69 => self.evaluate_69(ctx),
            70 => self.evaluate_70(ctx),
            71 => self.evaluate_71(ctx),
            72 => self.evaluate_72(ctx),
            73 => self.evaluate_73(ctx),
            74 => self.evaluate_74(ctx),
            75 => self.evaluate_75(ctx),
            76 => self.evaluate_76(ctx),
            77 => self.evaluate_77(ctx),
            78 => self.evaluate_78(ctx),
            79 => self.evaluate_79(ctx),
            80 => self.evaluate_80(ctx),
            81 => self.evaluate_81(ctx),
            82 => self.evaluate_82(ctx),
            84 => self.evaluate_84(ctx),
            85 => self.evaluate_85(ctx),
            86 => self.evaluate_86(ctx),
            88 => self.evaluate_88(ctx),
            490 => self.evaluate_490(ctx),
            491 => self.evaluate_491(ctx),
            492 => self.evaluate_492(ctx),
            493 => self.evaluate_493(ctx),
            501 => self.evaluate_501(ctx),
            502 => self.evaluate_502(ctx),
            503 => self.evaluate_503(ctx),
            504 => self.evaluate_504(ctx),
            507 => self.evaluate_507(ctx),
            508 => self.evaluate_508(ctx),
            509 => self.evaluate_509(ctx),
            510 => self.evaluate_510(ctx),
            512 => self.evaluate_512(ctx),
            513 => self.evaluate_513(ctx),
            514 => self.evaluate_514(ctx),
            515 => self.evaluate_515(ctx),
            516 => self.evaluate_516(ctx),
            517 => self.evaluate_517(ctx),
            518 => self.evaluate_518(ctx),
            519 => self.evaluate_519(ctx),
            520 => self.evaluate_520(ctx),
            521 => self.evaluate_521(ctx),
            522 => self.evaluate_522(ctx),
            523 => self.evaluate_523(ctx),
            524 => self.evaluate_524(ctx),
            525 => self.evaluate_525(ctx),
            526 => self.evaluate_526(ctx),
            902 => self.evaluate_902(ctx),
            906 => self.evaluate_906(ctx),
            908 => self.evaluate_908(ctx),
            910 => self.evaluate_910(ctx),
            911 => self.evaluate_911(ctx),
            912 => self.evaluate_912(ctx),
            914 => self.evaluate_914(ctx),
            927 => self.evaluate_927(ctx),
            930 => self.evaluate_930(ctx),
            931 => self.evaluate_931(ctx),
            932 => self.evaluate_932(ctx),
            933 => self.evaluate_933(ctx),
            934 => self.evaluate_934(ctx),
            935 => self.evaluate_935(ctx),
            937 => self.evaluate_937(ctx),
            939 => self.evaluate_939(ctx),
            940 => self.evaluate_940(ctx),
            946 => self.evaluate_946(ctx),
            950 => self.evaluate_950(ctx),
            951 => self.evaluate_951(ctx),
            960 => self.evaluate_960(ctx),
            961 => self.evaluate_961(ctx),
            _ => ConditionResult::Unknown,
        }
    }

    fn is_external(&self, condition: u32) -> bool {
        self.external_conditions.contains(&condition)
    }
    fn is_known(&self, condition: u32) -> bool {
        matches!(
            condition,
            1 | 2
                | 3
                | 4
                | 5
                | 6
                | 7
                | 8
                | 9
                | 10
                | 11
                | 12
                | 13
                | 14
                | 15
                | 16
                | 17
                | 18
                | 19
                | 20
                | 21
                | 22
                | 23
                | 24
                | 25
                | 26
                | 27
                | 28
                | 29
                | 30
                | 31
                | 32
                | 34
                | 36
                | 37
                | 40
                | 41
                | 42
                | 44
                | 45
                | 47
                | 48
                | 49
                | 50
                | 51
                | 53
                | 54
                | 55
                | 56
                | 57
                | 58
                | 59
                | 60
                | 61
                | 64
                | 65
                | 66
                | 67
                | 68
                | 69
                | 70
                | 71
                | 72
                | 73
                | 74
                | 75
                | 76
                | 77
                | 78
                | 79
                | 80
                | 81
                | 82
                | 84
                | 85
                | 86
                | 88
                | 490
                | 491
                | 492
                | 493
                | 501
                | 502
                | 503
                | 504
                | 507
                | 508
                | 509
                | 510
                | 512
                | 513
                | 514
                | 515
                | 516
                | 517
                | 518
                | 519
                | 520
                | 521
                | 522
                | 523
                | 524
                | 525
                | 526
                | 902
                | 906
                | 908
                | 910
                | 911
                | 912
                | 914
                | 927
                | 930
                | 931
                | 932
                | 933
                | 934
                | 935
                | 937
                | 939
                | 940
                | 946
                | 950
                | 951
                | 960
                | 961
        )
    }
}

impl InvoicConditionEvaluatorFV2504 {
    /// [1] Wenn in zu stornierender Rechnung gefüllt
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_1(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external
            .evaluate("invoice_being_cancelled_field_filled")
    }

    /// [2] Wenn es sich um eine Nutzungsüberlassung (Pacht) eines Gerätes handelt
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_2(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("is_device_lease")
    }

    /// [3] Wenn es sich um einen Kauf eines Gerätes handelt
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_3(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("is_device_purchase")
    }

    /// [7] Sofern keine Großkundenpostleitzahl verwendet wird
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_7(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("no_large_customer_postal_code")
    }

    /// [8] Bei zeitabhängigen Preisen
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_8(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("is_time_dependent_pricing")
    }

    /// [11] Wenn Abschlag anfällt
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether a deposit/advance payment (Abschlag) applies is business context that cannot be determined from the EDIFACT message structure alone — it depends on the contract type and billing arrangement. (medium confidence)
    fn evaluate_11(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("advance_payment_applies")
    }

    /// [13] Wenn vorausbezahlter Betrag vorliegt
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether a prepaid amount (vorausbezahlter Betrag) is present is billing business context that cannot be derived solely from the EDIFACT segments in the message. (medium confidence)
    fn evaluate_13(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("prepaid_amount_present")
    }

    /// [15] Wenn eine Bilanzierung erfolgt ist
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether a balancing (Bilanzierung) has occurred is operational/business context external to the EDIFACT message itself. (medium confidence)
    fn evaluate_15(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("balancing_performed")
    }

    /// [16] Wenn eine Netznutzung erfolgt ist
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether network usage (Netznutzung) has occurred is business context that cannot be determined solely from the EDIFACT message content. (medium confidence)
    fn evaluate_16(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("network_usage_performed")
    }

    /// [24] Wert muss mindestens 10 WT nach Wert aus DTM+137 DE2380 liegen
    // REVIEW: Compares resolved_value (current DTM's DE2380, a due date in format 303 CCYYMMDDHHMM) against DTM+137 DE2380 (Nachrichtendatum) found message-wide. True when werktage_between(dtm137, resolved) >= 10. Uses BDEW federal-holiday set + Easter computation.
    fn evaluate_24(&self, ctx: &EvaluationContext) -> ConditionResult {
        let (dtm137, current) = match dtm137_and_current_dates(ctx) {
            Some(pair) => pair,
            None => return ConditionResult::Unknown,
        };
        ConditionResult::from(werktage_between(dtm137, current) >= 10)
    }

    /// [25] Wert darf maximal 10 WT nach Wert aus DTM+137 DE2380 liegen
    // REVIEW: Same inputs as [24]. True when werktage_between(dtm137, resolved) <= 10.
    fn evaluate_25(&self, ctx: &EvaluationContext) -> ConditionResult {
        let (dtm137, current) = match dtm137_and_current_dates(ctx) {
            Some(pair) => pair,
            None => return ConditionResult::Unknown,
        };
        ConditionResult::from(werktage_between(dtm137, current) <= 10)
    }

    /// [34] Wenn in Ursprungsrechnung vorhanden
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: "Wenn in Ursprungsrechnung vorhanden" means the condition is met when the corresponding value was present in the referenced original invoice. That original document is not available inside the current EDIFACT message, so this is an external business-context check. (medium confidence)
    fn evaluate_34(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("in_original_invoice")
    }

    /// [37] Wenn Lieferschein zuvor ausgetauscht wurde
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: "Wenn Lieferschein zuvor ausgetauscht wurde" depends on whether a delivery note (Lieferschein) was exchanged in a prior business transaction. This cannot be determined from the current EDIFACT message alone; it requires external business context. (medium confidence)
    fn evaluate_37(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("delivery_note_previously_exchanged")
    }

    /// [40] Es sind nur die Artikelnummern erlaubt, die in der Codeliste der Artikelnummern und Artikel-ID mit dem entsprechenden Prüfidentifikator versehen sind oder Artikel-ID aus der Codeliste der Artikeln...
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Condition requires validating that the article number/ID appears in the external "Codeliste der Artikelnummern und Artikel-ID" for the given Prüfidentifikator. Code-list membership cannot be verified from the EDIFACT message structure alone; it is an external reference-data check. (medium confidence)
    fn evaluate_40(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("artikel_id_in_codeliste")
    }

    /// [45] Nur MP-ID aus Sparte Strom
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: "Nur MP-ID aus Sparte Strom" means only market-participant IDs that belong to the electricity sector are allowed. Determining which IDs are registered for Sparte Strom requires an external code list or market master data lookup and cannot be inferred from the EDIFACT message content. (medium confidence)
    fn evaluate_45(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("mp_id_sparte_strom")
    }

    /// [67] Es sind nur die Artikelnummern erlaubt, die im Kapitel 2 „Codeliste der Artikelnummer“ in der Codeliste der Artikelnummern und Artikel-ID ein „X“ für den entsprechenden Prüfidentifikator ...
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_67(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("artikelnummer_allowed_for_pid")
    }

    /// [68] Es sind nur die Artikel-ID erlaubt, die im Kapitel 3 „Codeliste der Gruppenartikel-ID und Artikel-ID“  in der Codeliste der Artikelnummern und Artikel-ID ein „X“ in der Spalte „INVOIC Cod...
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_68(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("artikel_id_invoic_allowed")
    }

    /// [69] Es sind nur die Artikel-ID erlaubt, die im Kapitel 3 „Codeliste der Gruppenartikel-ID und Artikel-ID“  in der Codeliste der Artikelnummern und Artikel-ID ein „SOR“ in der Spalte „INVOIC C...
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_69(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("artikel_id_invoic_sor_allowed")
    }

    /// [490] wenn Wert in diesem DE, an der Stelle CCYYMMDD ein Datum aus dem angegeben Zeitraum der Tabelle Kapitel 3.5 „Prozesszeitpunkt bei MESZ mit UTC“ ist
    fn evaluate_490(&self, ctx: &EvaluationContext) -> ConditionResult {
        match ctx.resolved_value {
            Some(val) => is_mesz_utc(val),
            None => ConditionResult::False,
        }
    }

    /// [491] wenn Wert in diesem DE, an der Stelle CCYYMMDD ein Datum aus dem angegeben Zeitraum der Tabelle Kapitel 3.6 „Prozesszeitpunkt bei MEZ mit UTC“ ist
    fn evaluate_491(&self, ctx: &EvaluationContext) -> ConditionResult {
        match ctx.resolved_value {
            Some(val) => is_mez_utc(val),
            None => ConditionResult::False,
        }
    }

    /// [4] Wenn Steuerschuldnerschaft des Leistungsempfängers vorliegt
    // REVIEW: "Wenn Steuerschuldnerschaft des Leistungsempfängers vorliegt" is the reverse charge mechanism. In UN/EDIFACT INVOIC, TAX category code "AE" (VAT Reverse Charge) signals this. The TAX segment composite C241 component 3 holds the tax category code. Medium confidence because element indices are derived from standard UN/EDIFACT TAX structure without a specific MIG segment structure reference to confirm the exact index for this INVOIC variant. (medium confidence)
    fn evaluate_4(&self, ctx: &EvaluationContext) -> ConditionResult {
        // Steuerschuldnerschaft des Leistungsempfängers = reverse charge (VAT category AE)
        // In EDIFACT INVOIC the TAX segment carries duty/tax type category code.
        // UN/EDIFACT code "AE" = VAT Reverse Charge (Steuerschuldnerschaft des Leistungsempfängers).
        // TAX+7+VAT+++:::AE — elements[4][3] holds the tax category code.
        let tax_segs = ctx.find_segments("TAX");
        for seg in &tax_segs {
            // elements[4] is the duty/tax account detail composite (C241 in UN/EDIFACT TAX)
            // component 3 (index 3) is the duty/tax rate category code
            if let Some(code) = seg.elements.get(4).and_then(|e| e.get(3)) {
                if code == "AE" {
                    return ConditionResult::True;
                }
            }
        }
        ConditionResult::False
    }

    /// [5] Wenn NAD+MR DE3207 &lt;&gt; „DE“
    fn evaluate_5(&self, ctx: &EvaluationContext) -> ConditionResult {
        let nads = ctx.find_segments_with_qualifier("NAD", 0, "MR");
        match nads.first() {
            Some(nad) => {
                match nad
                    .elements
                    .get(8)
                    .and_then(|e| e.first())
                    .map(|s| s.as_str())
                {
                    Some(country) => ConditionResult::from(country != "DE"),
                    None => ConditionResult::False, // segment absent → condition not applicable
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [6] Wenn NAD+MR DE3207 = „DE“
    fn evaluate_6(&self, ctx: &EvaluationContext) -> ConditionResult {
        let nads = ctx.find_segments_with_qualifier("NAD", 0, "MR");
        match nads.first() {
            Some(nad) => {
                match nad
                    .elements
                    .get(8)
                    .and_then(|e| e.first())
                    .map(|s| s.as_str())
                {
                    Some(country) => ConditionResult::from(country == "DE"),
                    None => ConditionResult::False, // segment absent → condition not applicable
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [9] Wenn SG26 DTM+203 nicht vorhanden
    // REVIEW: Checks whether any SG26 instance lacks DTM+203 (Ausführungsdatum). Uses group navigator when available, falling back to message-wide absence check. DTM qualifier at elements[0][0]. (medium confidence)
    fn evaluate_9(&self, ctx: &EvaluationContext) -> ConditionResult {
        // DTM+203 (Ausführungsdatum) absence in the current SG26 context.
        // Falls back to message-wide check when no group navigator available.
        let nav = match ctx.navigator() {
            Some(n) => n,
            None => return ctx.lacks_qualifier("DTM", 0, "203"),
        };
        let sg26_count = nav.group_instance_count(&["SG26"]);
        for i in 0..sg26_count {
            let dtms = nav.find_segments_in_group("DTM", &["SG26"], i);
            let has_203 = dtms.iter().any(|s| {
                s.elements
                    .first()
                    .and_then(|e| e.first())
                    .is_some_and(|v| v == "203")
            });
            if !has_203 {
                return ConditionResult::True;
            }
        }
        if sg26_count == 0 {
            return ctx.lacks_qualifier("DTM", 0, "203");
        }
        ConditionResult::False
    }

    /// [10] Wenn SG26 DTM+155/156 nicht vorhanden
    // REVIEW: Both DTM+155 (Abrechnungszeitraum Beginn) and DTM+156 (Ende) must be absent in the SG26. Uses group navigator; both must be absent simultaneously for the condition to be True. (medium confidence)
    fn evaluate_10(&self, ctx: &EvaluationContext) -> ConditionResult {
        // DTM+155 (Abrechnungszeitraum Beginn) and DTM+156 (Ende) both absent in SG26.
        // Falls back to message-wide check when no group navigator available.
        let nav = match ctx.navigator() {
            Some(n) => n,
            None => {
                let no_155 = ctx.lacks_qualifier("DTM", 0, "155");
                let no_156 = ctx.lacks_qualifier("DTM", 0, "156");
                return match (no_155, no_156) {
                    (ConditionResult::True, ConditionResult::True) => ConditionResult::True,
                    (ConditionResult::False, _) | (_, ConditionResult::False) => {
                        ConditionResult::False
                    }
                    _ => ConditionResult::Unknown,
                };
            }
        };
        let sg26_count = nav.group_instance_count(&["SG26"]);
        for i in 0..sg26_count {
            let dtms = nav.find_segments_in_group("DTM", &["SG26"], i);
            let has_155 = dtms.iter().any(|s| {
                s.elements
                    .first()
                    .and_then(|e| e.first())
                    .is_some_and(|v| v == "155")
            });
            let has_156 = dtms.iter().any(|s| {
                s.elements
                    .first()
                    .and_then(|e| e.first())
                    .is_some_and(|v| v == "156")
            });
            if !has_155 && !has_156 {
                return ConditionResult::True;
            }
        }
        if sg26_count == 0 {
            let no_155 = ctx.lacks_qualifier("DTM", 0, "155");
            let no_156 = ctx.lacks_qualifier("DTM", 0, "156");
            return match (no_155, no_156) {
                (ConditionResult::True, ConditionResult::True) => ConditionResult::True,
                (ConditionResult::False, _) | (_, ConditionResult::False) => ConditionResult::False,
                _ => ConditionResult::Unknown,
            };
        }
        ConditionResult::False
    }

    /// [12] Wenn SG26 QTY+136 vorhanden
    fn evaluate_12(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("QTY", 0, "136")
    }

    /// [14] Wenn in selben SG26 LIN DE7140 = "9990001000748" (Mehrmenge)
    fn evaluate_14(&self, ctx: &EvaluationContext) -> ConditionResult {
        // Check if any SG26 LIN has DE7140 (Produkt-/Leistungsnummer) = "9990001000748" (Mehrmenge).
        // LIN is the entry segment of SG26; elements[2][0] = DE7140.
        let lins = ctx.find_segments("LIN");
        ConditionResult::from(lins.iter().any(|s| {
            s.elements
                .get(2)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "9990001000748")
        }))
    }

    /// [17] Wenn DTM+Z11 vorhanden
    fn evaluate_17(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("DTM", 0, "Z11")
    }

    /// [18] Wenn IMD++WIM nicht vorhanden
    fn evaluate_18(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.lacks_qualifier("IMD", 1, "WIM")
    }

    /// [19] Wenn IMD++WIM vorhanden
    fn evaluate_19(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("IMD", 1, "WIM")
    }

    /// [20] Wenn fälliger Betrag (SG50 MOA+9) ≥ 0
    // REVIEW: MOA+9 is fälliger Betrag (due amount): elements[0][0]='9', elements[0][1]=amount. Parses the numeric value and checks >= 0. (medium confidence)
    fn evaluate_20(&self, ctx: &EvaluationContext) -> ConditionResult {
        let moas = ctx.find_segments_with_qualifier("MOA", 0, "9");
        match moas.first() {
            Some(moa) => match moa.elements.first().and_then(|e| e.get(1)) {
                Some(val) => match val.parse::<f64>() {
                    Ok(n) => ConditionResult::from(n >= 0.0),
                    Err(_) => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            },
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [21] Wenn fälliger Betrag (SG50 MOA+9) &lt; 0
    // REVIEW: MOA+9 is fälliger Betrag. Parses numeric value and checks < 0. Inverse of condition 20. (medium confidence)
    fn evaluate_21(&self, ctx: &EvaluationContext) -> ConditionResult {
        let moas = ctx.find_segments_with_qualifier("MOA", 0, "9");
        match moas.first() {
            Some(moa) => match moa.elements.first().and_then(|e| e.get(1)) {
                Some(val) => match val.parse::<f64>() {
                    Ok(n) => ConditionResult::from(n < 0.0),
                    Err(_) => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            },
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [22] Wenn vorhanden
    fn evaluate_22(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Wenn vorhanden — self-referential presence condition, always True when evaluated
        ConditionResult::True
    }

    /// [23] Wenn im selben NAD DE3124 nicht vorhanden
    // REVIEW: DE3124 resides in C058 at elements[2][0] for all NAD variants. 'Im selben NAD' means within the same NAD instance; evaluated message-wide as: any NAD where this component is absent or empty. (medium confidence)
    fn evaluate_23(&self, ctx: &EvaluationContext) -> ConditionResult {
        let nads = ctx.find_segments("NAD");
        if nads.is_empty() {
            return ConditionResult::Unknown;
        }
        // True if any NAD has DE3124 (elements[2][0] from C058) absent or empty
        ConditionResult::from(nads.iter().any(|nad| {
            nad.elements
                .get(2)
                .and_then(|e| e.first())
                .map_or(true, |v| v.is_empty())
        }))
    }

    /// [26] Wenn SG39 ALC+A+:Z04 vorhanden
    fn evaluate_26(&self, ctx: &EvaluationContext) -> ConditionResult {
        let alcs = ctx.find_segments_with_qualifier("ALC", 0, "A");
        ConditionResult::from(alcs.iter().any(|alc| {
            alc.elements
                .get(1)
                .and_then(|e| e.get(1))
                .map_or(false, |v| v == "Z04")
        }))
    }

    /// [27] Wenn SG39 ALC+C vorhanden
    fn evaluate_27(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("ALC", 0, "C")
    }

    /// [28] Wenn Zuschlag anfällt
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: 'Wenn Zuschlag anfällt' (if a surcharge applies) is a business-context determination that cannot be derived from EDIFACT segment content alone. It depends on contract terms or tariff configuration held outside the message. (medium confidence)
    fn evaluate_28(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("surcharge_applies")
    }

    /// [29] [Wenn DTM+155 (Abrechnungszeitraum Beginn) nicht größer 31.12.2015
    // REVIEW: DTM+155 is Abrechnungszeitraum Beginn with format 303 (starts YYYYMMDD). 'nicht größer 31.12.2015' means <= 31.12.2015. Lexicographic comparison of 8-char ISO prefix is correct for this date format. (medium confidence)
    fn evaluate_29(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtms = ctx.find_segments_with_qualifier("DTM", 0, "155");
        match dtms.first() {
            Some(dtm) => {
                match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => {
                        // Format 303: CCYYMMDDHHMMSSZZZ — compare YYYYMMDD prefix
                        let date_prefix = &val[..8];
                        ConditionResult::from(date_prefix <= "20151231")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [30] Wenn MP-ID in NAD+MR nicht in der Rolle MGV oder KN
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: 'Wenn MP-ID in NAD+MR nicht in der Rolle MGV oder KN' requires knowledge of which market-participant IDs correspond to the MGV (Messstellenbetreiber Gasvertrieb) or KN (Kunde/Netz) roles. Role assignment is maintained in an external registry and cannot be determined from the NAD segment alone. (medium confidence)
    fn evaluate_30(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_not_mgv_or_kn")
    }

    /// [31] Wenn MP-ID in NAD+MR in der Rolle MGV
    /// EXTERNAL: Requires context from outside the message.
    fn evaluate_31(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_is_mgv")
    }

    /// [32] Wenn SG39 ALC+A+:Z01 (Gemeinderabatt) vorhanden
    fn evaluate_32(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualified_value("ALC", 0, "A", 1, 1, &["Z01"])
    }

    /// [36] Wenn DTM+156 (Abrechnungszeitraum Ende) ≥ 01.12.2019
    // REVIEW: DTM+156 (Abrechnungszeitraum Ende) uses format 303 (CCYYMMDDHHMM), so lexicographic string comparison is correct. German date 01.12.2019 = December 1, 2019 = "201912010000". (medium confidence)
    fn evaluate_36(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segs = ctx.find_segments_with_qualifier("DTM", 0, "156");
        match dtm_segs.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if !value.is_empty() => {
                        // Format 303 = CCYYMMDDHHMM; lexicographic comparison works for zero-padded timestamps.
                        // 01.12.2019 (DD.MM.YYYY) = December 1, 2019 = "201912010000"
                        ConditionResult::from(value >= "201912010000")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [41] Wenn IMD++SOR vorhanden
    fn evaluate_41(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        ConditionResult::from(imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "SOR")
        }))
    }

    /// [42] Wenn DTM+155 (Abrechnungszeitraum Beginn) ≥ 1.1.2023 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+155 (Abrechnungszeitraum Beginn) uses format 303 (CCYYMMDDHHMM). January 1, 2023 at 00:00 = "202301010000". Lexicographic comparison is correct for zero-padded CCYYMMDDHHMM. (medium confidence)
    fn evaluate_42(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segs = ctx.find_segments_with_qualifier("DTM", 0, "155");
        match dtm_segs.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if !value.is_empty() => {
                        // Format 303 = CCYYMMDDHHMM; 1.1.2023 0:00 gesetzlicher Zeit = "202301010000"
                        ConditionResult::from(value >= "202301010000")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [44] Wenn IMD++ABS nicht vorhanden
    fn evaluate_44(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        ConditionResult::from(!imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "ABS")
        }))
    }

    /// [47] Wenn IMD++Z43 vorhanden
    fn evaluate_47(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        ConditionResult::from(imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z43")
        }))
    }

    /// [48] Wenn IMD++Z44 vorhanden
    fn evaluate_48(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        ConditionResult::from(imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z44")
        }))
    }

    /// [49] Wenn IMD++Z43 und IMD+Z44 nicht vorhanden
    fn evaluate_49(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        let has_z43 = imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z43")
        });
        let has_z44 = imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z44")
        });
        ConditionResult::from(!has_z43 && !has_z44)
    }

    /// [50] Wenn IMD++SOR nicht vorhanden
    fn evaluate_50(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imds = ctx.find_segments("IMD");
        ConditionResult::from(!imds.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "SOR")
        }))
    }

    /// [51] Wenn SG26 DTM+156 (Positionsbezogener Abrechnungszeitraum Ende) ≤ 1.1.2023 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+156 in SG26 (Positionsbezogener Abrechnungszeitraum Ende) uses format 303 (CCYYMMDDHHMM). January 1, 2023 at 00:00 = "202301010000". Without SG26-scoped group navigation, message-wide search is used; qualifier 156 in the SG26 context is distinct from the message-level 156, but without group navigation this is the best available approximation. (medium confidence)
    fn evaluate_51(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segs = ctx.find_segments_with_qualifier("DTM", 0, "156");
        match dtm_segs.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if !value.is_empty() => {
                        // Format 303 = CCYYMMDDHHMM; 1.1.2023 0:00 = "202301010000"
                        ConditionResult::from(value <= "202301010000")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [53] Wenn IMD++Z45 vorhanden
    fn evaluate_53(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("IMD", 1, "Z45")
    }

    /// [54] Wenn IMD++ABR/JVR/ZVR vorhanden
    fn evaluate_54(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments("IMD");
            if segs.is_empty() {
                return ConditionResult::False;
            }
            ConditionResult::from(segs.iter().any(|s| {
                s.elements
                    .get(1)
                    .and_then(|e| e.first())
                    .is_some_and(|v| matches!(v.as_str(), "ABR" | "JVR" | "ZVR"))
            }))
        }
    }

    /// [55] Wenn IMD++ABS vorhanden
    fn evaluate_55(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("IMD", 1, "ABS")
    }

    /// [56] Wenn DTM+137 (Nachrichtendatum ≥ 1.1.2023 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+137 Nachrichtendatum >= 2023-01-01. Parses the date value (format 303 = YYYYMMDDHHmm) and compares the first 8 characters against '20230101'. String comparison is valid for ISO date format. (medium confidence)
    fn evaluate_56(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments_with_qualifier("DTM", 0, "137");
            match segs.first() {
                Some(dtm) => match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => {
                        ConditionResult::from(val[..8].cmp("20230101") != std::cmp::Ordering::Less)
                    }
                    _ => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            }
        }
    }

    /// [57] Wenn DTM+156 (Abrechnungszeitraum Ende) ≤ 1.1.2023 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+156 (Abrechnungszeitraum Ende) <= 2023-01-01 0:00. Compares first 8 chars of date value against '20230101'. Returns True when the end date is on or before Jan 1 2023. (medium confidence)
    fn evaluate_57(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments_with_qualifier("DTM", 0, "156");
            match segs.first() {
                Some(dtm) => match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => ConditionResult::from(
                        val[..8].cmp("20230101") != std::cmp::Ordering::Greater,
                    ),
                    _ => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            }
        }
    }

    /// [58] Wenn in dieser SG52 MOA+113 vorhanden
    fn evaluate_58(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.any_group_has_qualifier("MOA", 0, "113", &["SG52"])
    }

    /// [59] Wenn SG26 DTM+155 (Positionsbezogener Abrechnungszeitraum Beginn) ≥ 1.1.2023 0:00 gesetzlicher deutscher Zeit
    // REVIEW: SG26 DTM+155 (Positionsbezogener Abrechnungszeitraum Beginn) >= 2023-01-01 0:00. Finds DTM with qualifier 155 and compares first 8 chars of the date value against '20230101'. (medium confidence)
    fn evaluate_59(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments_with_qualifier("DTM", 0, "155");
            match segs.first() {
                Some(dtm) => match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => {
                        ConditionResult::from(val[..8].cmp("20230101") != std::cmp::Ordering::Less)
                    }
                    _ => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            }
        }
    }

    /// [60] Wenn DTM+203 DE2379 in demselben Segment mit Wert 303 vorhanden
    fn evaluate_60(&self, ctx: &EvaluationContext) -> ConditionResult {
        ConditionResult::from(ctx.self_segment_value_equals("DTM", 0, 2, "303"))
    }

    /// [61] Wenn DTM+203 DE2379 in demselben Segment mit Wert 102 vorhanden
    fn evaluate_61(&self, ctx: &EvaluationContext) -> ConditionResult {
        ConditionResult::from(ctx.self_segment_value_equals("DTM", 0, 2, "102"))
    }

    /// [64] Wenn DTM+156 (Abrechnungszeitraum Ende) ≤ 1.1.2024 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+156 (Abrechnungszeitraum Ende) <= 2024-01-01 0:00. Same pattern as condition 57 but with threshold '20240101'. (medium confidence)
    fn evaluate_64(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments_with_qualifier("DTM", 0, "156");
            match segs.first() {
                Some(dtm) => match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => ConditionResult::from(
                        val[..8].cmp("20240101") != std::cmp::Ordering::Greater,
                    ),
                    _ => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            }
        }
    }

    /// [65] Wenn SG26 DTM+155 (Positionsbezogener Abrechnungszeitraum Beginn) ≥ 1.1.2024 0:00 gesetzlicher deutscher Zeit
    // REVIEW: SG26 DTM+155 (Positionsbezogener Abrechnungszeitraum Beginn) >= 2024-01-01 0:00. Same pattern as condition 59 but with threshold '20240101'. (medium confidence)
    fn evaluate_65(&self, ctx: &EvaluationContext) -> ConditionResult {
        {
            let segs = ctx.find_segments_with_qualifier("DTM", 0, "155");
            match segs.first() {
                Some(dtm) => match dtm.elements.first().and_then(|e| e.get(1)) {
                    Some(val) if val.len() >= 8 => {
                        ConditionResult::from(val[..8].cmp("20240101") != std::cmp::Ordering::Less)
                    }
                    _ => ConditionResult::Unknown,
                },
                None => ConditionResult::False, // segment absent → condition not applicable
            }
        }
    }

    /// [66] Wenn IMD++KON vorhanden
    fn evaluate_66(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.has_qualifier("IMD", 1, "KON")
    }

    /// [70] Wenn IMD++Z45 nicht vorhanden
    fn evaluate_70(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imd_segments = ctx.find_segments("IMD");
        let found = imd_segments.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z45")
        });
        ConditionResult::from(!found)
    }

    /// [71] Wenn DTM+155 (Abrechnungszeitraum Beginn) ≥ 1.1.2024 0:00 gesetzlicher deutscher Zeit
    // REVIEW: DTM+155 means elements[0][0]=="155". Value is at elements[0][1] in 303 format (YYYYMMDDhhmm). String comparison works for chronological ordering. Timezone nuance (German legal time) ignored — medium confidence. (medium confidence)
    fn evaluate_71(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segments = ctx.find_segments_with_qualifier("DTM", 0, "155");
        match dtm_segments.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if !value.is_empty() => {
                        // 303 format: YYYYMMDDhhmm — lexicographic comparison is chronological for zero-padded strings
                        ConditionResult::from(value >= "202401010000")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [72] Wenn MP-ID in NAD+MR in der Rolle LF
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether the MP-ID in NAD+MR has the market role LF (Lieferant) cannot be determined from the EDIFACT message alone — it requires a business registry lookup. The NAD+MR segment only provides the party identifier, not the assigned market role. (medium confidence)
    fn evaluate_72(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_is_lf")
    }

    /// [73] Wenn IMD++MSB vorhanden
    fn evaluate_73(&self, ctx: &EvaluationContext) -> ConditionResult {
        let imd_segments = ctx.find_segments("IMD");
        let found = imd_segments.iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "MSB")
        });
        ConditionResult::from(found)
    }

    /// [74] wenn im DE3155 in demselben COM der Code EM vorhanden ist
    fn evaluate_74(&self, ctx: &EvaluationContext) -> ConditionResult {
        let com_segments = ctx.find_segments("COM");
        let found = com_segments.iter().any(|s| {
            s.elements
                .first()
                .and_then(|e| e.get(1))
                .is_some_and(|v| v == "EM")
        });
        ConditionResult::from(found)
    }

    /// [75] wenn im DE3155 in demselben COM der Code TE / FX / AJ / AL vorhanden ist
    fn evaluate_75(&self, ctx: &EvaluationContext) -> ConditionResult {
        let com_segments = ctx.find_segments("COM");
        let found = com_segments.iter().any(|s| {
            s.elements
                .first()
                .and_then(|e| e.get(1))
                .is_some_and(|v| matches!(v.as_str(), "TE" | "FX" | "AJ" | "AL"))
        });
        ConditionResult::from(found)
    }

    /// [76] Wenn MP-ID in NAD+MR in der Rolle NB
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Whether the MP-ID in NAD+MR has the market role NB (Netzbetreiber) cannot be determined from the EDIFACT message alone — it requires a business registry lookup. The NAD+MR segment only provides the party identifier, not the assigned market role. (medium confidence)
    fn evaluate_76(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_is_nb")
    }

    /// [77] Wenn SG26 DTM+156 (Positionsbezogener Abrechnungszeitraum Ende) ≤ 1.1.2024 0:00 gesetzlicher deutscher Zeit
    // REVIEW: SG26 DTM+156 means elements[0][0]=="156". Value at elements[0][1] in 303 format. Compare <= "202401010000" (Jan 1 2024 00:00). Medium confidence due to timezone nuance. (medium confidence)
    fn evaluate_77(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segments = ctx.find_segments_with_qualifier("DTM", 0, "156");
        match dtm_segments.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if !value.is_empty() => {
                        // 303 format: YYYYMMDDhhmm — lexicographic comparison is chronological
                        ConditionResult::from(value <= "202401010000")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [78] Wenn GEI+Z08 nicht vorhanden
    // REVIEW: GEI schema shows elements[0] qualifier is always Z01, while the specification code is at elements[1][0] (DE7365) with codes Z01-Z06 +3 more. 'GEI+Z08' in AHB shorthand refers to elements[1][0]=="Z08". Absence check returns True when not found. (medium confidence)
    fn evaluate_78(&self, ctx: &EvaluationContext) -> ConditionResult {
        let found = ctx.find_segments("GEI").iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z08")
        });
        ConditionResult::from(!found)
    }

    /// [79] Wenn GEI+Z09 nicht vorhanden
    // REVIEW: Same pattern as condition 78. 'GEI+Z09' in AHB shorthand refers to elements[1][0]=="Z09". (medium confidence)
    fn evaluate_79(&self, ctx: &EvaluationContext) -> ConditionResult {
        let found = ctx.find_segments("GEI").iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z09")
        });
        ConditionResult::from(!found)
    }

    /// [80] Wenn GEI+Z01 nicht vorhanden
    // REVIEW: 'GEI+Z01' refers to elements[1][0]=="Z01" (the specification code, not the fixed qualifier at elements[0]). Absence check. (medium confidence)
    fn evaluate_80(&self, ctx: &EvaluationContext) -> ConditionResult {
        let found = ctx.find_segments("GEI").iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z01")
        });
        ConditionResult::from(!found)
    }

    /// [81] Wenn GEI+Z04 nicht vorhanden
    // REVIEW: Same pattern as condition 78. 'GEI+Z04' refers to elements[1][0]=="Z04". (medium confidence)
    fn evaluate_81(&self, ctx: &EvaluationContext) -> ConditionResult {
        let found = ctx.find_segments("GEI").iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z04")
        });
        ConditionResult::from(!found)
    }

    /// [82] Wenn GEI+Z05 nicht vorhanden
    // REVIEW: Same pattern as condition 78. 'GEI+Z05' refers to elements[1][0]=="Z05". (medium confidence)
    fn evaluate_82(&self, ctx: &EvaluationContext) -> ConditionResult {
        let found = ctx.find_segments("GEI").iter().any(|s| {
            s.elements
                .get(1)
                .and_then(|e| e.first())
                .is_some_and(|v| v == "Z05")
        });
        ConditionResult::from(!found)
    }

    /// [84] Wenn in dieser SG39 ALC+C+:Z02 / Z03 / Z04 vorhanden
    fn evaluate_84(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.any_group_has_qualified_value("ALC", 0, "C", 1, 1, &["Z02", "Z03", "Z04"], &["SG39"])
    }

    /// [85] Wenn in diesem Segment DE6411 = DAY
    // REVIEW: DE6411 is the measurement unit code, appearing in QTY segments as C186 composite: elements[0][0]=DE6063 (qualifier), elements[0][1]=DE6060 (quantity), elements[0][2]=DE6411 (unit code). 'DAY' is the unit code for daily quantities. Medium confidence as the specific segment context ('in diesem Segment') may require group scoping. (medium confidence)
    fn evaluate_85(&self, ctx: &EvaluationContext) -> ConditionResult {
        let qty_segments = ctx.find_segments("QTY");
        let found = qty_segments.iter().any(|s| {
            s.elements
                .first()
                .and_then(|e| e.get(2))
                .is_some_and(|v| v == "DAY")
        });
        ConditionResult::from(found)
    }

    /// [86] Wenn in diesem Segment DE6411 = MON/ANN
    // REVIEW: DE6411 is the unit of measure code in QTY segments at elements[0][2] (C186 component 2). 'In diesem Segment' means within the current QTY context. Check message-wide for QTY with MON or ANN unit code. (medium confidence)
    fn evaluate_86(&self, ctx: &EvaluationContext) -> ConditionResult {
        let qty_segments = ctx.find_segments("QTY");
        ConditionResult::from(qty_segments.iter().any(|s| {
            s.elements
                .first()
                .and_then(|e| e.get(2))
                .map(|v| v == "MON" || v == "ANN")
                .unwrap_or(false)
        }))
    }

    /// [88] Wenn DTM+155 (Abrechnungszeitraum Beginn) ≥ 1.1.2026 0:00 gesetzlicher deutscher Zeit
    fn evaluate_88(&self, ctx: &EvaluationContext) -> ConditionResult {
        let dtm_segs = ctx.find_segments_with_qualifier("DTM", 0, "155");
        match dtm_segs.first() {
            Some(dtm) => {
                match dtm
                    .elements
                    .first()
                    .and_then(|e| e.get(1))
                    .map(|s| s.as_str())
                {
                    Some(value) if value.len() >= 8 => {
                        let date_part = &value[..8];
                        ConditionResult::from(date_part >= "20260101")
                    }
                    _ => ConditionResult::Unknown,
                }
            }
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [492] Wenn MP-ID in NAD+MR (Nachrichtenempfänger) aus Sparte Strom
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Checks whether the NAD+MR (message recipient) MP-ID belongs to the electricity (Strom) sector. The NAD+MR element structure is known (elements[0]=MR, elements[1][0]=MP-ID), but sector membership cannot be determined from the EDIFACT message content alone — it requires an external market participant registry. Delegated to external provider. (medium confidence)
    fn evaluate_492(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_is_strom")
    }

    /// [493] Wenn MP-ID in NAD+MR (Nachrichtenempfänger) aus Sparte Gas
    /// EXTERNAL: Requires context from outside the message.
    // REVIEW: Checks whether the NAD+MR (message recipient) MP-ID belongs to the gas (Gas) sector. Same reasoning as 492 — sector membership cannot be determined from the EDIFACT message alone; requires external market participant registry. Delegated to external provider. (medium confidence)
    fn evaluate_493(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.external.evaluate("recipient_is_gas")
    }

    /// [501] Hinweis: Dokumentennummer der ORDERS
    fn evaluate_501(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der ORDERS — informational note, always applies
        ConditionResult::True
    }

    /// [502] Hinweis: Dokumentennummer der Bilanzierungs-MSCONS
    fn evaluate_502(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der Bilanzierungs-MSCONS — informational note, always applies
        ConditionResult::True
    }

    /// [503] Hinweis: Ein positiver Betrag ist eine Forderung des Rechnungsstellers.
    fn evaluate_503(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Ein positiver Betrag ist eine Forderung des Rechnungsstellers — informational note, always applies
        ConditionResult::True
    }

    /// [504] Hinweis: Ein positiver Betrag ist eine Forderung des Rechnungsempfängers.
    fn evaluate_504(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Ein positiver Betrag ist eine Forderung des Rechnungsempfängers — informational note, always applies
        ConditionResult::True
    }

    /// [507] Hinweis: Dokumentennummer der SSQNOT
    fn evaluate_507(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der SSQNOT — informational note, always applies
        ConditionResult::True
    }

    /// [508] Hinweis: Dokumentennummer der QUOTES
    fn evaluate_508(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der QUOTES — informational note, always applies
        ConditionResult::True
    }

    /// [509] Hinweis: Verwendung der ID der Marktlokation
    fn evaluate_509(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Verwendung der ID der Marktlokation — informational note, always applies
        ConditionResult::True
    }

    /// [510] Hinweis: Verwendung der ID der Messlokation
    fn evaluate_510(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Verwendung der ID der Messlokation — informational note, always applies
        ConditionResult::True
    }

    /// [512] Hinweis: Hier ist entweder der Betrag aus MOA+203 oder der um den gültigen Steuerbetrag erhöhte Betrag aus MOA+203 anzugeben.
    fn evaluate_512(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Hier ist entweder der Betrag aus MOA+203 oder der um den gültigen Steuerbetrag erhöhte Betrag aus MOA+203 anzugeben — informational note, always applies
        ConditionResult::True
    }

    /// [513] Hinweis: Hier ist das Ergebnis der Multiplikation von MOA+25 mit PCD+3 anzugeben.
    fn evaluate_513(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Hier ist das Ergebnis der Multiplikation von MOA+25 mit PCD+3 anzugeben — informational note, always applies
        ConditionResult::True
    }

    /// [514] Hinweis: Dokumentennummer der Lieferschein-MSCONS
    fn evaluate_514(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der Lieferschein-MSCONS — informational note, always applies
        ConditionResult::True
    }

    /// [515] Hinweis: BGM DE1004 aus INVOIC-Nachricht, die storniert werden soll
    fn evaluate_515(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: BGM DE1004 aus INVOIC-Nachricht, die storniert werden soll — informational note, always applies
        ConditionResult::True
    }

    /// [516] Hinweis: Ein Lieferschein zu einer Rechnung ist für alle Abrechnungszeiträume, die erstmals nach dem 1.12.2019 abgerechnet werden und für alle Abrechnungszeiträume, für die sich nach dem 1.12....
    fn evaluate_516(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Ein Lieferschein zu einer Rechnung ist für alle Abrechnungszeiträume, die erstmals nach dem 1.12.2019 abgerechnet werden und für alle Abrechnungszeiträume, für die sich nach dem 1.12.2019 geänderte Mengen oder Leistungswerte ergeben, nötig.
        ConditionResult::True
    }

    /// [517] Hinweis: Dokumentennummer der PDF-Kapazitätsrechnung
    fn evaluate_517(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Dokumentennummer der PDF-Kapazitätsrechnung — informational annotation, always applies
        ConditionResult::True
    }

    /// [518] Hinweis:  Im Fall der Stornierung des Auftrags der Unterbrechung: Der Tag an dem der NB die Stornierung empfangen hat Bei erfolgreicher Sperrung: Tag der durchgeführten Sperrung Bei erfolgloser Sp...
    fn evaluate_518(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Date semantics for cancellation/blocking scenarios — informational annotation, always applies
        ConditionResult::True
    }

    /// [519] Hinweis: Stornierte Abschlagsrechnungen sind nicht aufzuführen
    fn evaluate_519(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Stornierte Abschlagsrechnungen sind nicht aufzuführen — informational annotation, always applies
        ConditionResult::True
    }

    /// [520] Hinweis: Es sind nur die Artikel-IDs aus dem Preisblatt erlaubt
    fn evaluate_520(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Es sind nur die Artikel-IDs aus dem Preisblatt erlaubt — informational annotation, always applies
        ConditionResult::True
    }

    /// [521] Hinweis: BGM DE1004 aus der INVOIC-Nachricht, für die Verzugskosten erhoben werden
    fn evaluate_521(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: BGM DE1004 aus der INVOIC-Nachricht, für die Verzugskosten erhoben werden — informational note, always applies
        ConditionResult::True
    }

    /// [522] Hinweis: Verwendung der ID der Netzlokation
    fn evaluate_522(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Verwendung der ID der Netzlokation — informational note, always applies
        ConditionResult::True
    }

    /// [523] Hinweis: Verwendung der ID der Steuerbaren Ressource
    fn evaluate_523(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Verwendung der ID der Steuerbaren Ressource — informational note, always applies
        ConditionResult::True
    }

    /// [524] Hinweis: Es darf nur eine Information im DE3148 übermittelt werden
    fn evaluate_524(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Es darf nur eine Information im DE3148 übermittelt werden — informational note, always applies
        ConditionResult::True
    }

    /// [525] Hinweis: Verwendung, sofern Netzentgelte geringer als die Pauschale Netzentgeltreduzierung
    fn evaluate_525(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Verwendung, sofern Netzentgelte geringer als die Pauschale Netzentgeltreduzierung — informational note, always applies
        ConditionResult::True
    }

    /// [526] Hinweis: Der hier angegebene Geldbetrag muss mit dem identisch sein, der in SG50 MOA+77 im DE5004 der Abschlagsrechnung steht, die die Rechnungsnummer hat, die in dieser SG50 in SG51-RFF+AFL in DE1...
    fn evaluate_526(&self, _ctx: &EvaluationContext) -> ConditionResult {
        // Hinweis: Der hier angegebene Geldbetrag muss mit dem identisch sein, der in SG50 MOA+77
        // im DE5004 der Abschlagsrechnung steht, die die Rechnungsnummer hat, die in dieser SG50
        // in SG51-RFF+AFL in DE1154 genannt ist.
        // Informational note — always applies
        ConditionResult::True
    }

    /// [902] Format: Möglicher Wert: ≥ 0
    // REVIEW: Format condition requiring value >= 0, applied to MOA amount (DE5004 at elements[0][1]). Medium confidence because exact segment/group context is inferred from INVOIC structure — the full AHB table row would clarify which specific MOA qualifier this applies to. (medium confidence)
    fn evaluate_902(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("MOA", 0, 1, |val| validate_numeric(val, ">=", 0.0))
    }

    /// [906] Format: max. 3 Nachkommastellen
    // REVIEW: Format condition requiring at most 3 decimal places. Most likely applies to MOA DE5004 (Geldbetrag) in INVOIC. Medium confidence — the exact MOA qualifier or group (SG27/SG42/SG50/SG52) depends on the AHB table row context not included in the condition description alone. (medium confidence)
    fn evaluate_906(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("MOA", 0, 1, |val| validate_max_decimal_places(val, 3))
    }

    /// [908] Format: Mögliche Werte: 1 bis n
    // REVIEW: Format condition requiring value in range 1..n (strictly positive). Applied to QTY quantity values in INVOIC (DE6060 at elements[0][1]). Medium confidence — the exact segment context depends on the full AHB table row. (medium confidence)
    fn evaluate_908(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_numeric(val, ">=", 1.0))
    }

    /// [910] Format: Möglicher Wert: &lt; 0 oder ≥ 0
    // REVIEW: Format condition accepting any numeric value (< 0 OR >= 0 is universally true). This documents that the field accepts negative values (unlike condition 902 which restricts to >= 0). Validates the value is a parseable number. Medium confidence on the exact segment — likely a MOA that can be a credit/deduction amount. (medium confidence)
    fn evaluate_910(&self, ctx: &EvaluationContext) -> ConditionResult {
        // Format: Möglicher Wert: < 0 oder ≥ 0 — any numeric value is valid (no sign constraint)
        // Applied to MOA amounts that may be negative (e.g., credits, deductions)
        let segs = ctx.find_segments("MOA");
        match segs
            .first()
            .and_then(|s| s.elements.first())
            .and_then(|e| e.get(1))
        {
            Some(val) if !val.is_empty() => {
                // < 0 or >= 0 covers all real numbers — validate it is a parseable number
                match val.trim_start_matches('-').parse::<f64>() {
                    Ok(_) => ConditionResult::True,
                    Err(_) => ConditionResult::False,
                }
            }
            _ => ConditionResult::Unknown,
        }
    }

    /// [911] Format: Mögliche Werte: 1 bis n, je Nachricht oder Segmentgruppe bei 1 beginnend und fortlaufend aufsteigend
    // REVIEW: Sequential numbering validation (1 to n, ascending) — only the >= 1 integer constraint can be checked on a single value. Full sequential ordering cannot be verified without stateful iteration across all instances. Applies to LIN line item numbers in INVOIC SG26. Medium confidence due to segment assumption and inability to verify sequential ordering in isolation. (medium confidence)
    fn evaluate_911(&self, ctx: &EvaluationContext) -> ConditionResult {
        // Format: Mögliche Werte: 1 bis n, je Nachricht oder Segmentgruppe bei 1 beginnend und fortlaufend aufsteigend
        // Validates that the value is a positive integer >= 1 (sequential enforcement requires external state)
        let segs = ctx.find_segments("LIN");
        match segs
            .first()
            .and_then(|s| s.elements.first())
            .and_then(|e| e.first())
        {
            Some(val) => match val.parse::<i64>() {
                Ok(n) if n >= 1 => ConditionResult::True,
                Ok(_) => ConditionResult::False,
                Err(_) => ConditionResult::False,
            },
            None => ConditionResult::False, // segment absent → condition not applicable
        }
    }

    /// [912] Format: max. 6 Nachkommastellen
    fn evaluate_912(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_max_decimal_places(val, 6))
    }

    /// [914] Format: Möglicher Wert: &gt; 0
    fn evaluate_914(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_numeric(val, ">", 0.0))
    }

    /// [927] Format: Möglicher Wert: -1
    // REVIEW: Value must be exactly -1. Used for special indicator values (e.g., a reversal or placeholder quantity). validate_numeric with == operator handles exact match. Medium confidence due to segment assumption — the -1 constraint is unusual and the exact segment context (QTY vs MOA) depends on which AHB data element references this condition. (medium confidence)
    fn evaluate_927(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_numeric(val, "==", -1.0))
    }

    /// [930] Format: max. 2 Nachkommastellen
    fn evaluate_930(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_max_decimal_places(val, 2))
    }

    /// [931] Format: ZZZ = +00
    fn evaluate_931(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("DTM", 0, 1, validate_timezone_utc)
    }

    /// [932] Format: HHMM = 2200
    fn evaluate_932(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("DTM", 0, 1, |val| validate_hhmm_equals(val, "2200"))
    }

    /// [933] Format: HHMM = 2300
    fn evaluate_933(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("DTM", 0, 1, |val| validate_hhmm_equals(val, "2300"))
    }

    /// [934] Format: HHMM = 0400
    fn evaluate_934(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("DTM", 0, 1, |val| validate_hhmm_equals(val, "0400"))
    }

    /// [935] Format: HHMM = 0500
    fn evaluate_935(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("DTM", 0, 1, |val| validate_hhmm_equals(val, "0500"))
    }

    /// [937] Format: keine Nachkommastelle
    fn evaluate_937(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_max_decimal_places(val, 0))
    }

    /// [939] Format: Die Zeichenkette muss die Zeichen @ und . enthalten
    fn evaluate_939(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("COM", 0, 0, validate_email)
    }

    /// [940] Format: Die Zeichenkette muss mit dem Zeichen + beginnen und danach dürfen nur noch Ziffern folgen
    fn evaluate_940(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("COM", 0, 0, validate_phone)
    }

    /// [946] Format: max. 11 Nachkommastellen
    fn evaluate_946(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check("QTY", 0, 1, |val| validate_max_decimal_places(val, 11))
    }

    /// [950] Format: Marktlokations-ID
    fn evaluate_950(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check_qualified("LOC", 0, "Z16", 1, 0, validate_malo_id)
    }

    /// [951] Format: Zählpunktbezeichnung
    fn evaluate_951(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check_qualified("LOC", 0, "Z17", 1, 0, validate_zahlpunkt)
    }

    /// [960] Format: Netzlokations-ID
    // HAND-EDITED: a Netzlokations-ID is "E" + ten alphanumerics (`E1688117482`),
    // not MaLo-shaped; `validate_malo_id` rejected every real one (#173).
    fn evaluate_960(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check_qualified("LOC", 0, "Z18", 1, 0, validate_nelo_id)
    }

    /// [961] Format: SR-ID
    fn evaluate_961(&self, ctx: &EvaluationContext) -> ConditionResult {
        ctx.format_check_qualified("LOC", 0, "Z19", 1, 0, validate_malo_id)
    }
}