artifact_api/
media.rs

1//! Media values refer only to committed, scope-owned artifacts.
2use crate::{ArtifactKind, ArtifactReference, ArtifactReferenceError};
3use serde::{Deserialize, Serialize};
4
5#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
6#[serde(deny_unknown_fields)]
7pub struct MediaReference {
8    pub uri: ArtifactUri,
9}
10
11impl MediaReference {
12    pub fn reference(
13        &self,
14        kind: ArtifactKind,
15    ) -> Result<ArtifactReference, ArtifactReferenceError> {
16        let reference = ArtifactReference::parse(&self.uri)?;
17        if reference.metadata().kind() != kind {
18            return Err(super::invalid(
19                "media artifact kind does not match the field type",
20            ));
21        }
22        Ok(reference)
23    }
24
25    pub fn validate(
26        &self,
27        tenant: &str,
28        scope: &str,
29        kind: ArtifactKind,
30    ) -> Result<ArtifactReference, ArtifactReferenceError> {
31        let reference = self.reference(kind)?;
32        reference.ensure_scope(tenant, scope)?;
33        Ok(reference)
34    }
35}
36
37/// Explicit import of a finite HTTP resource. Scope comes from authenticated context.
38#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
39#[serde(rename_all = "camelCase", deny_unknown_fields)]
40pub struct ImportArtifactRequest {
41    pub kind: ArtifactKind,
42    pub source_url: String,
43    #[serde(default, skip_serializing_if = "Option::is_none")]
44    pub mime_type: Option<String>,
45}
46
47#[cfg(test)]
48mod tests {
49    use super::*;
50    #[test]
51    fn media_rejects_legacy_fields_and_wrong_scope_or_kind() {
52        for value in [
53            serde_json::json!({"url":"https://example.com/a"}),
54            serde_json::json!({"uri":"x","base64":"eA=="}),
55            serde_json::json!({"uri":"x","mimeType":"image/png"}),
56            serde_json::json!({"uri":"x","createdAt":1}),
57        ] {
58            assert!(serde_json::from_value::<MediaReference>(value).is_err());
59        }
60        let reference = ArtifactReference::new(
61            "tenant",
62            "scope",
63            "a".repeat(64),
64            crate::ArtifactMetadata::audio("audio/mpeg", 10, None).unwrap(),
65        )
66        .unwrap();
67        let media = MediaReference {
68            uri: reference.uri().unwrap().parse().unwrap(),
69        };
70        assert!(media
71            .validate("tenant", "scope", ArtifactKind::Audio)
72            .is_ok());
73        assert!(media
74            .validate("tenant", "other", ArtifactKind::Audio)
75            .is_err());
76        assert!(media
77            .validate("tenant", "scope", ArtifactKind::Image)
78            .is_err());
79        assert!(serde_json::from_value::<MediaReference>(serde_json::json!({
80            "uri": "https://example.com/a"
81        }))
82        .is_err());
83    }
84}
85
86/// A canonical artifact URI. Construction and deserialization reject non-artifact sources.
87#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
88#[serde(try_from = "String", into = "String")]
89pub struct ArtifactUri(String);
90
91impl ArtifactUri {
92    pub fn as_str(&self) -> &str {
93        &self.0
94    }
95    pub fn reference(&self) -> ArtifactReference {
96        ArtifactReference::parse(&self.0).expect("ArtifactUri was validated at construction")
97    }
98}
99impl std::str::FromStr for ArtifactUri {
100    type Err = ArtifactReferenceError;
101    fn from_str(value: &str) -> Result<Self, Self::Err> {
102        let reference = ArtifactReference::parse(value)?;
103        Ok(Self(reference.uri()?))
104    }
105}
106impl TryFrom<String> for ArtifactUri {
107    type Error = ArtifactReferenceError;
108    fn try_from(value: String) -> Result<Self, Self::Error> {
109        value.parse()
110    }
111}
112impl From<ArtifactUri> for String {
113    fn from(value: ArtifactUri) -> String {
114        value.0
115    }
116}
117impl std::ops::Deref for ArtifactUri {
118    type Target = str;
119    fn deref(&self) -> &str {
120        self.as_str()
121    }
122}
123impl AsRef<str> for ArtifactUri {
124    fn as_ref(&self) -> &str {
125        self.as_str()
126    }
127}
128impl std::fmt::Display for ArtifactUri {
129    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
130        self.0.fmt(f)
131    }
132}
artifact_api/media.rs

artifact_api/
media.rs
