pvoutput-client 0.0.3

//! Parameters for the various endpoints.

use std::{collections::HashMap, fmt::Display};

use jiff::civil::{Date, Time};
use serde::{Serialize, Serializer};
use serde_repr::Serialize_repr;

use crate::types::Conditions;

/// Parameters for the [`get_status`](crate::Client::get_status) endpoint.
#[derive(Debug, Serialize, Clone, Default)]
pub struct GetStatusParams {
	/// Date to retrieve status for.
	#[serde(rename = "d", serialize_with = "jiff_ymd")]
	pub date: Option<Date>,

	/// Time to retrieve status for.
	#[serde(rename = "t", serialize_with = "jiff_hhmm")]
	pub time: Option<Time>,

	/// Return [history](crate::Client::get_status_history) results in ascending order.
	#[serde(rename = "asc", serialize_with = "bool_int")]
	pub ascending: bool,

	/// Number of results to return when making a [history request](crate::Client::get_status_history), up to a maximum
	/// of **288** (one day of data).
	///
	/// Defaults to **30**.
	pub limit: Option<u16>,

	/// If set, only statuses after this time will be returned.
	#[serde(serialize_with = "jiff_hhmm")]
	pub from: Option<Time>,

	/// If set, only statuses before this time will be returned.
	#[serde(serialize_with = "jiff_hhmm")]
	pub to: Option<Time>,

	/// Return extended data.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "ext", serialize_with = "bool_int")]
	pub extended_data: bool,

	/// System ID to retrieve status for.
	/// If unset, the [`Client`](crate::Client)'s authenticated system is used.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "sid1")]
	pub system_id: Option<u32>,
}

#[derive(Debug, Serialize, Clone, Default)]
pub(crate) struct GetStatusParamsOuter {
	#[serde(flatten)]
	pub params: GetStatusParams,
	#[serde(serialize_with = "bool_int")]
	pub h: bool,
	#[serde(serialize_with = "bool_int")]
	pub stats: bool,
}

impl GetStatusParamsOuter {
	pub const fn new(params: GetStatusParams, h: bool, stats: bool) -> Self { Self { params, h, stats } }
}

/// Parameters for the [`get_statistics`](crate::Client::get_statistics) endpoint.
#[derive(Debug, Serialize, Clone, Default)]
pub struct GetStatisticsParams {
	/// Date to measure statistics from.
	#[serde(rename = "df")]
	pub date_from: Option<Date>,

	/// Date to measure statistics to.
	#[serde(rename = "dt")]
	pub date_to: Option<Date>,

	/// Return consumption data.
	///
	/// This information is only available to the system owner.
	/// Requesting data for another system via the `system_id` parameter will not work.
	#[serde(rename = "c", serialize_with = "bool_int")]
	pub consumption: bool,

	/// Return credit and debit data.
	///
	/// This information is only available to the system owner.
	/// Requesting data for another system via the `system_id` parameter will not work.
	#[serde(rename = "crdr", serialize_with = "bool_int")]
	pub credit_and_debit: bool,

	/// System ID to retrieve statistics for.
	/// If unset, the [`Client`](crate::Client)'s authenticated system is used.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "sid1")]
	pub system_id: Option<u32>,
}

/// Parameters for the [`get_system`](crate::Client::get_system) endpoint.
#[derive(Debug, Serialize, Clone, Default)]
#[allow(clippy::struct_excessive_bools)]
pub struct GetSystemParams {
	/// Return information about the system's secondary array if one is present.
	#[serde(rename = "array2", serialize_with = "bool_int")]
	pub secondary_array: bool,

	/// Return information about the system's tariffs.
	#[serde(serialize_with = "bool_int")]
	pub tariffs: bool,

	/// Return a list of the system's teams.
	#[serde(serialize_with = "bool_int")]
	pub teams: bool,

	/// Return monthly estimates for the system.
	#[serde(rename = "est", serialize_with = "bool_int")]
	pub monthly_estimates: bool,

	/// Return the system's donation count.
	#[serde(serialize_with = "bool_int")]
	pub donations: bool,

	/// System ID to retrieve information for.
	/// If unset, the [`Client`](crate::Client)'s authenticated system is used.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	pub system_id: Option<u32>,

	/// Return extended data.
	#[serde(rename = "ext", serialize_with = "bool_int")]
	pub extended_data: bool,
}

impl GetSystemParams {
	/// Creates a new [`GetSystemParams`] with all fields set to `true`.
	#[must_use]
	pub const fn all() -> Self {
		Self {
			secondary_array: true,
			tariffs: true,
			teams: true,
			monthly_estimates: true,
			donations: true,
			system_id: None,
			extended_data: true,
		}
	}

	/// Creates a new [`GetSystemParams`] for the given system with all fields set to `true`.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[must_use]
	pub const fn all_for_system(system: u32) -> Self {
		Self {
			system_id: Some(system),
			..Self::all()
		}
	}
}

/// Parameters for the [`get_outputs`](crate::Client::get_outputs),
/// [`get_aggregate_outputs`](crate::Client::get_aggregate_outputs),
/// and [`get_team_outputs`](crate::Client::get_team_outputs) endpoints.
#[derive(Debug, Serialize, Clone, Default)]
pub struct GetOutputParams {
	/// Date to retrieve outputs from.
	#[serde(rename = "df", serialize_with = "jiff_ymd")]
	pub date_from: Option<Date>,

	/// Date to retrieve outputs to.
	#[serde(rename = "dt", serialize_with = "jiff_ymd")]
	pub date_to: Option<Date>,

	/// Maximum number of outputs to retrieve.
	/// Limited to **50** for non-donors and **150** for [donors](https://pvoutput.org/help/donations.html).
	pub limit: Option<u8>,

	/// System ID to retrieve outputs for.
	/// If unset, the [`Client`](crate::Client)'s authenticated system is used.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "sid1")]
	pub system_id: Option<u32>,

	/// Retrieve insolation data.
	/// Not supported for [team](crate::Client::get_team_outputs) or
	/// [aggregate outputs](crate::Client::get_aggregate_outputs).
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(serialize_with = "bool_int")]
	pub insolation: bool,

	/// Retrieve time of export data.
	/// Not supported for [team outputs](crate::Client::get_team_outputs).
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "timeofexport", serialize_with = "bool_int")]
	pub time_of_export: bool,
}

/// Aggregation level for [`get_aggregate_outputs`](crate::Client::get_aggregate_outputs).
#[derive(Copy, Clone, Debug, Serialize, PartialEq, Eq, Hash)]
pub enum Aggregation {
	#[serde(rename = "m")]
	Monthly,

	#[serde(rename = "y")]
	Yearly,
}

#[derive(Debug, Serialize, Clone, Default)]
pub(crate) struct GetOutputParamsOuter {
	#[serde(flatten)]
	pub params: GetOutputParams,

	pub a: Option<Aggregation>,
	pub tid: Option<u32>,
}

/// Parameters for the [`get_extended`](crate::Client::get_extended) endpoint.
#[derive(Debug, Serialize, Clone, Default)]
pub struct GetExtendedParams {
	/// Start of the date range to retrieve extended data for.
	#[serde(rename = "df")]
	pub date_from: Option<Date>,

	/// End of the date range to retrieve extended data for.
	#[serde(rename = "dt")]
	pub date_to: Option<Date>,

	/// Maximum number of outputs to retrieve. Limited to **fifty**.
	pub limit: Option<u8>,
}

/// Parameters for the [`get_insolation`](crate::Client::get_insolation) endpoint.
#[derive(Debug, Serialize, Clone, Default)]
pub struct GetInsolationParams {
	/// Date to retrieve insolation data for.
	///
	/// If not set, today's date will be used.
	#[serde(rename = "d", serialize_with = "jiff_ymd")]
	pub date: Option<Date>,

	/// Timezone to use for insolation calculation.
	///
	/// If not set, the system's timezone will be used.
	/// If the system doesn't have a timezone, UTC will be used as a fallback.
	#[serde(rename = "tz")]
	pub timezone: Option<String>,

	/// Latitude and longitude to use for insolation calculation.
	///
	/// If not set, the system's latitude and longitude will be used.
	/// If the system doesn't have location information, the system's postcode's latitude and longitude will be used.
	#[serde(rename = "ll", serialize_with = "lat_long")]
	pub location: Option<(f32, f32)>,

	/// System to retrieve insolation data for.
	///
	/// If unset, the [`Client`](crate::Client)'s authenticated system is used.
	#[serde(rename = "sid1")]
	pub system_id: Option<u32>,
}

/// Parameters for the [`search`](crate::Client::search) endpoint.
#[derive(Debug, Serialize, Clone)]
pub struct SearchParams {
	/// Search query.
	///
	/// See the [PVOutput docs](https://pvoutput.org/help/searching.html#searching) for further information.
	#[serde(rename = "q")]
	pub query: String,

	/// Latitude and longitude to use as the point of origin for
	/// [distance searches](https://pvoutput.org/help/searching.html#:~:text=Distance%20(System)).
	#[serde(rename = "ll", serialize_with = "lat_long")]
	pub location: Option<(f32, f32)>,

	/// Return country names alongside postcodes.
	#[serde(rename = "country", serialize_with = "bool_int")]
	pub country_names: bool,

	/// Filter results by country code.
	///
	/// Required for postcode distance searches (e.g. `q=4000 20km`)
	pub country_code: Option<CountryCode>,

	/// Only return systems that were last seen this number of days ago or fewer.
	pub seen: Option<u32>,
}

impl SearchParams {
	/// Create a new search query.
	///
	/// `location`, `country_code`, and `seen` will be set to `None`, and `country_names` will be set to `false`.
	pub fn new(query: impl Into<String>) -> Self {
		Self {
			query: query.into(),
			location: None,
			country_names: false,
			country_code: None,
			seen: None,
		}
	}
}

/// Country codes for use with [`SearchParams`].
// documented here: https://pvoutput.org/help/api_specification.html#country-codes
#[derive(Debug, Serialize, Clone, Copy, PartialEq, Eq, Hash)]
pub enum CountryCode {
	/// Australia.
	#[serde(rename = "au")]
	Australia,

	/// Belgium (België).
	#[serde(rename = "be")]
	Belgium,

	/// Denmark (Danmark).
	#[serde(rename = "dk")]
	Denmark,

	/// Italy (Italia).
	#[serde(rename = "it")]
	Italy,

	/// The Netherlands (Nederland).
	#[serde(rename = "nl")]
	Netherlands,

	/// The United Kingdom of Great Britain and Northern Ireland.
	#[serde(rename = "uk")]
	UnitedKingdom,

	/// The United States of America.
	#[serde(rename = "us")]
	UnitedStates,
}

/// Parameters for the [`add_outputs`](crate::Client::add_outputs) endpoint.
///
/// # Example
/// [`AddOutputParams::new`] can be used to create a parameter struct with all other fields set to `None`.
/// This can be used to easily create parameters with only one or two fields set:
/// ```rust
/// use pvoutput_client::types::{Conditions, params::AddOutputParams};
/// use jiff::civil::Date;
///
/// let params = AddOutputParams {
///   generated: Some(1_500),
///   conditions: Some(Conditions::Cloudy),
///   ..AddOutputParams::new(Date::constant(2025, 09, 22))
/// };
/// ```
#[derive(Serialize, Clone, Debug)]
pub struct AddOutputParams {
	/// Output date.
	///
	/// Must be after 2000-01-01 and not in the future.
	#[serde(serialize_with = "jiff_ymd_direct")]
	pub date: Date,

	/// Power generated in watt-hours.
	/// This is *required* if an output does not yet exist for this date.
	pub generated: Option<u32>,

	/// Power exported in watt-hours.
	pub exported: Option<u32>,

	/// Peak power output in watts.
	pub peak: Option<u32>,

	/// The time at which the peak output was recorded.
	/// Seconds will be truncated -- `11:15:05` becomes `11:15`.
	#[serde(serialize_with = "jiff_hhmm")]
	pub peak_time: Option<Time>,

	/// The day's weather conditions.
	pub conditions: Option<Conditions>,

	/// The minimum recorded temperature in degrees Celsius.
	///
	/// If set, a maximum temperature must also be provided, and the minimum temperature must be lower than the maximum
	/// temperature.
	///
	/// Both temperatures must be between -100.0 and 100.0.
	pub min_temp: Option<f32>,

	/// The maximum recorded temperature in degrees Celsius.
	///
	/// If set, a minimum temperature must also be provided, and the minimum temperature must be lower than the maximum
	/// temperature.
	///
	/// Both temperatures must be between -100.0 and 100.0.
	pub max_temp: Option<f32>,

	/// A comment.
	// TODO: handle semicolons and newlines in comments
	pub comment: Option<String>,

	/// The amount of energy imported during the peak tariff in watt-hours.
	pub import_peak: Option<u32>,

	/// The amount of energy imported during the off-peak tariff in watt-hours.
	pub import_off_peak: Option<u32>,

	/// The amount of energy imported during the shoulder tariff in watt-hours.
	pub import_shoulder: Option<u32>,

	/// The amount of energy imported during the high-shoulder tariff in watt-hours.
	pub import_high_shoulder: Option<u32>,

	/// Energy consumption in watt-hours.
	///
	/// Limited to 999,999,999 Wh.
	pub consumption: Option<u32>,

	/// The amount of energy exported during the peak tariff in watt-hours.
	pub export_peak: Option<u32>,

	/// The amount of energy exported during the off-peak tariff in watt-hours.
	pub export_off_peak: Option<u32>,

	/// The amount of energy exported during the shoulder tariff in watt-hours.
	pub export_shoulder: Option<u32>,

	/// The amount of energy exported during the high-shoulder tariff in watt-hours.
	pub export_high_shoulder: Option<u32>,
}

impl AddOutputParams {
	/// Creates a new [`AddOutputParams`] for the given date with all other fields set to `None`.
	#[must_use]
	pub const fn new(date: Date) -> Self {
		Self {
			date,
			generated: None,
			exported: None,
			peak: None,
			peak_time: None,
			conditions: None,
			min_temp: None,
			max_temp: None,
			comment: None,
			import_peak: None,
			import_off_peak: None,
			import_shoulder: None,
			import_high_shoulder: None,
			consumption: None,
			export_peak: None,
			export_off_peak: None,
			export_shoulder: None,
			export_high_shoulder: None,
		}
	}
}

/// Common parameters for the [`add_status`](crate::Client::add_status),
/// [`add_batch_status`](crate::Client::add_batch_status), and
/// [`add_batch_status_net`](crate::Client::add_batch_status_net) endpoints.
#[allow(clippy::too_long_first_doc_paragraph)]
#[derive(Clone, Debug, Serialize)]
pub struct AddStatusCommon {
	/// The date for this status.
	///
	/// Must be within the past **fourteen days**, or the past **ninety days** for
	/// accounts with [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "d", serialize_with = "jiff_ymd_direct")]
	pub date: Date,

	/// The time for this status.
	///
	/// Times will be rounded to the nearest configured
	/// [status interval](https://pvoutput.org/help/live_data.html#live-configuration-status-interval).
	#[serde(rename = "t", serialize_with = "jiff_hhmm_direct")]
	pub time: Time,

	/// Energy generation in watt-hours.
	///
	/// This field is **required** when using the batch status endpoint.
	#[serde(rename = "v1")]
	pub energy_generation: Option<u32>,

	/// Power generation in watts.
	#[serde(rename = "v2")]
	pub power_generation: Option<i32>,

	/// Energy consumption in watt-hours.
	///
	/// Limited to **200,000 Wh** for free accounts, or **999,999,999 Wh** for
	/// accounts with [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "v3")]
	pub energy_consumption: Option<u32>,

	/// Power consumption in watts.
	///
	/// Limited to **100,000 W** for free accounts, or **2,000,000 W** for
	/// accounts with [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "v4")]
	pub power_consumption: Option<i32>,

	/// Temperature in degrees Celsius.
	#[serde(rename = "v5")]
	pub temperature: Option<f32>,

	/// Voltage in volts.
	#[serde(rename = "v6")]
	pub voltage: Option<f32>,
}

impl AddStatusCommon {
	/// Creates a new [`AddStatusCommon`] for the given date and time with all other fields set to `None`.
	#[must_use]
	pub const fn new(date: Date, time: Time) -> Self {
		Self {
			date,
			time,
			energy_generation: None,
			power_generation: None,
			energy_consumption: None,
			power_consumption: None,
			temperature: None,
			voltage: None,
		}
	}
}

/// Extended parameters for use with the [`AddStatusParams`] and [`AddBatchStatusParams`] structs.
#[derive(Clone, Debug, Serialize, Default)]
pub struct AddExtendedParams {
	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 1.
	#[serde(rename = "v7")]
	pub extended_value_1: Option<f32>,

	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 2.
	#[serde(rename = "v8")]
	pub extended_value_2: Option<f32>,

	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 3.
	#[serde(rename = "v9")]
	pub extended_value_3: Option<f32>,

	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 4.
	#[serde(rename = "v10")]
	pub extended_value_4: Option<f32>,

	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 5.
	#[serde(rename = "v11")]
	pub extended_value_5: Option<f32>,

	/// User-defined [extended data](https://pvoutput.org/help/extended_data.html) parameter 6.
	#[serde(rename = "v12")]
	pub extended_value_6: Option<f32>,
}

/// Parameters for the [`add_status`](crate::Client::add_status) endpoint.
#[derive(Clone, Debug, Serialize)]
pub struct AddStatusParams {
	/// Parameters common to the [`add_status`](crate::Client::add_status) and
	/// [`add_batch_status`](crate::Client::add_batch_status) endpoints.
	#[serde(flatten)]
	pub common: AddStatusCommon,

	/// Whether to process this status as a cumulative status, and if so, which fields are cumulative.
	#[serde(rename = "c1")]
	pub cumulative_flag: CumulativeFlag,

	/// Whether to process this status as net data.
	///
	/// See the [PVOutput docs](https://pvoutput.org/help/api_specification.html#net-data) for further information.
	#[serde(rename = "n", serialize_with = "bool_int")]
	pub net_data: bool,

	/// Extended data.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(flatten)]
	pub extended_data: Option<AddExtendedParams>,

	/// A comment.
	///
	/// Limited to a maximum of thirty characters.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(rename = "m1")]
	pub message: Option<String>,

	/// Battery information.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(flatten)]
	pub battery: Option<AddBatteryParams>,
}

impl AddStatusParams {
	/// Creates a new instance of [`AddStatusParams`] with the given common parameters and all other fields set to
	/// `None`.
	#[must_use]
	pub const fn new(common: AddStatusCommon) -> Self {
		Self {
			common,
			cumulative_flag: CumulativeFlag::False,
			net_data: false,
			extended_data: None,
			message: None,
			battery: None,
		}
	}
}

impl From<AddStatusCommon> for AddStatusParams {
	fn from(common: AddStatusCommon) -> Self { Self::new(common) }
}

#[derive(Clone, Debug, Serialize, Default)]
pub struct AddBatteryParams {
	/// Battery power in watts.
	/// A positive value indicates charging either from generation or load (consumption).
	/// A negative value indicates discharging.
	#[serde(rename = "b1")]
	pub power: i32,

	/// State of charge as a percentage.
	#[serde(rename = "b2")]
	pub state_of_charge: Option<f32>,

	/// Usable battery size in watt-hours.
	#[serde(rename = "b3")]
	pub size: Option<u32>,

	/// Lifetime charge in watt-hours.
	#[serde(rename = "b4")]
	pub lifetime_charge: Option<u32>,

	/// Lifetime discharge in watt-hours.
	#[serde(rename = "b5")]
	pub lifetime_discharge: Option<u32>,

	/// Battery state.
	#[serde(rename = "b6")]
	pub state: Option<BatteryState>,
}

/// Battery state.
/// For use with [`AddStatusParams`].
///
/// [PVOutput docs](https://pvoutput.org/help/api_specification.html#state-codes)
// note to future me: deriving repr(int) starts at zero and automatically increments.
// see https://doc.rust-lang.org/reference/items/enumerations.html#implicit-discriminants
#[derive(Copy, Clone, Debug, Default, Ord, PartialOrd, Eq, PartialEq, Hash, Serialize_repr)]
#[repr(u8)]
pub enum BatteryState {
	Invalid,
	#[default]
	Standby,
	ThermalManagement,
	Enabled,
	Fault,

	/// User defined. Corresponds to `b2=5`.
	UserDefinedA,

	/// User defined. Corresponds to `b2=6`.
	UserDefinedB,

	/// User defined. Corresponds to `b2=7`.
	UserDefinedC,

	/// User defined. Corresponds to `b2=8`.
	UserDefinedD,

	/// User defined. Corresponds to `b2=9`.
	UserDefinedE,
}

/// Parameters for the [`add_batch_status`](crate::Client::add_batch_status) endpoint.
#[derive(Clone, Debug, Serialize)]
pub struct AddBatchStatusParams {
	/// Parameters common to the [`add_status`](crate::Client::add_status) and
	/// [`add_batch_status`](crate::Client::add_batch_status) endpoints.
	#[serde(flatten)]
	pub common: AddStatusCommon,

	/// Extended data.
	///
	/// Requires [donation status](https://pvoutput.org/help/donations.html).
	#[serde(flatten)]
	pub extended_data: Option<AddExtendedParams>,
}

impl AddBatchStatusParams {
	/// Creates a new [`AddBatchStatusParams`].
	#[must_use]
	pub const fn new(common: AddStatusCommon, extended_data: Option<AddExtendedParams>) -> Self {
		Self { common, extended_data }
	}
}

impl From<AddStatusCommon> for AddBatchStatusParams {
	fn from(common: AddStatusCommon) -> Self {
		Self {
			common,
			extended_data: None,
		}
	}
}

/// Parameters for the [`add_batch_status_net`](crate::Client::add_batch_status_net) endpoint.
#[derive(Clone, Debug, Serialize)]
pub struct AddNetBatchStatusParams {
	/// The date for this status.
	#[serde(serialize_with = "jiff_ymd_direct")]
	pub date: Date,

	/// The time for this status.
	///
	/// Times will be rounded to the nearest configured
	/// [status interval](https://pvoutput.org/help/live_data.html#live-configuration-status-interval).
	#[serde(serialize_with = "jiff_hhmm_direct")]
	pub time: Time,

	spacer_a: (),

	/// Power exported in watts.
	pub power_exported: u32,

	spacer_b: (),

	/// Power imported in watts.
	pub power_imported: u32,
}

impl AddNetBatchStatusParams {
	/// Creates a new [`AddNetBatchStatusParams`] with the provided fields.
	#[must_use]
	pub const fn new(date: Date, time: Time, power_exported: u32, power_imported: u32) -> Self {
		Self {
			date,
			time,
			spacer_a: (),
			power_exported,
			spacer_b: (),
			power_imported,
		}
	}
}

/// Whether to process a status as cumulative, and if so, which of its fields are cumulative.
#[derive(Clone, Debug, Copy, Default, Serialize, Hash, Eq, PartialEq)]
pub enum CumulativeFlag {
	/// This status is not cumulative.
	#[serde(rename = "0")]
	#[default]
	False,

	/// The energy generation and consumption values for this status are lifetime cumulative values.
	#[serde(rename = "1")]
	Both,

	/// The energy generation value for this status is lifetime cumulative.
	#[serde(rename = "2")]
	Generation,

	/// The energy consumption value for this status is lifetime cumulative.
	#[serde(rename = "3")]
	Consumption,
}

/// Parameters for the [`post_system`](crate::Client::post_system) endpoint.
///
/// Updating extended data variables requires [donation status](https://pvoutput.org/help/donations.html).
#[derive(Clone, Debug, Default)]
pub struct PostSystemParams {
	/// A new name for the system.
	/// Limited to thirty characters.
	pub name: Option<String>,

	/// Extended data variables.
	pub(crate) extended_variables: HashMap<ExtendedVariable, ExtendedVariableUpdate>,
}

impl PostSystemParams {
	/// Creates a new [`PostSystemParams`].
	#[must_use]
	pub fn new() -> Self { Self::default() }

	/// Creates a new [`PostSystemParams`] with the provided `name` and no extended data variables.
	#[must_use]
	pub fn new_rename(name: String) -> Self {
		Self {
			name: Some(name),
			extended_variables: HashMap::new(),
		}
	}

	/// Adds a new extended variable update.
	///
	/// If there is already an update for this variable, it will be replaced with the provided update.
	///
	/// # Example
	/// ```rust
	/// use pvoutput_client::types::params::{ExtendedVariable, ExtendedVariableUpdate, PostSystemParams};
	///
	/// let mut post = PostSystemParams::default();
	/// let update = ExtendedVariableUpdate {
	///   label: Some(String::from("Wind speed")),
	///   unit: Some(String::from("m/s")),
	///   ..Default::default()
	/// };
	/// post.add_update(ExtendedVariable::V7, update);
	///
	/// assert_eq!(
	///   post.get_update(ExtendedVariable::V7).map(|u| u.label.as_deref()).flatten(),
	///   Some("Wind speed")
	/// );
	/// assert!(post.get_update(ExtendedVariable::V8).is_none());
	/// ```
	pub fn add_update(&mut self, variable: ExtendedVariable, update: ExtendedVariableUpdate) -> &mut Self {
		self.extended_variables.insert(variable, update);
		self
	}

	/// Gets the update for the given extended variable, if any.
	#[must_use]
	pub fn get_update(&self, variable: ExtendedVariable) -> Option<&ExtendedVariableUpdate> {
		self.extended_variables.get(&variable)
	}
}

/// An update to an [extended data variable](https://pvoutput.org/help/extended_data.html).
///
/// Any omitted fields will use the previously set values if this extended variable already exists, or the default
/// values if it doesn't.
///
/// # Default colours
/// | Variable | Colour |
/// |:--------:|--------|
/// |    v7    | 339933 |
/// |    v8    | ccff66 |
/// |    v9    | efcf21 |
/// |    v10   | ff5555 |
/// |    v11   | 0a72b1 |
/// |    v12   | dd5fc9 |
#[derive(Debug, Clone, Default)]
pub struct ExtendedVariableUpdate {
	/// A label for this extended variable.
	/// Limited to twenty characters.
	///
	/// This field is *required* if this is a new extended variable.
	pub label: Option<String>,

	/// A unit for this extended variable.
	/// Limited to ten characters.
	///
	/// This field is *required* if this is a new extended variable.
	pub unit: Option<String>,

	/// A colour to use for this extended variable, formatted as six lowercase hexadecimal digits without leading
	/// `#` -- for example, `ff0000` for bright red.
	pub colour: Option<String>,

	/// The axis to use for this extended variable.
	/// Must be between zero and five.
	/// The default is zero.
	///
	/// Parameters placed on the same axis are shown on the same graph scale.
	pub axis: Option<u8>,

	/// How to graph this extended variable.
	/// The default is [`Graph::Line`].
	pub graph: Option<Graph>,
}

/// An [extended data variable](https://pvoutput.org/help/extended_data.html) identifier.
#[derive(Debug, Clone, Copy, Hash, Eq, PartialEq, Ord, PartialOrd)]
pub enum ExtendedVariable {
	/// The first extended variable (`v7`).
	V7 = 7,

	/// The second extended variable (`v8`).
	V8 = 8,

	/// The third extended variable (`v9`).
	V9 = 9,

	/// The fourth extended variable (`v10`).
	V10 = 10,

	/// The fifth extended variable (`v11`).
	V11 = 11,

	/// The sixth extended variable (`v12`).
	V12 = 12,
}

impl TryFrom<u8> for ExtendedVariable {
	type Error = u8;

	fn try_from(value: u8) -> Result<Self, Self::Error> {
		match value {
			7 => Ok(Self::V7),
			8 => Ok(Self::V8),
			9 => Ok(Self::V9),
			10 => Ok(Self::V10),
			11 => Ok(Self::V11),
			12 => Ok(Self::V12),
			_ => Err(value),
		}
	}
}

/// How to graph an extended variable.
#[derive(Copy, Clone, Debug, Default, Serialize, Hash, PartialEq, Eq)]
#[serde(rename_all = "lowercase")]
pub enum Graph {
	/// Use an area graph.
	Area,

	/// Use a line graph.
	#[default]
	Line,
}

impl Display for Graph {
	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
		match self {
			Self::Area => write!(f, "area"),
			Self::Line => write!(f, "line"),
		}
	}
}

#[derive(Serialize)]
pub(crate) struct DeleteStatusParams {
	#[serde(serialize_with = "jiff_ymd_direct")]
	pub d: Date,

	#[serde(serialize_with = "jiff_hhmm")]
	pub t: Option<Time>,
}

// custom serialiser functions

/// Serialises an [`Option<Date>`] to a string in the format "yyyymmdd".
#[allow(clippy::ref_option)]
fn jiff_ymd<S>(value: &Option<Date>, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	if let Some(value) = value {
		s.serialize_str(value.strftime("%Y%m%d").to_string().as_str())
	} else {
		s.serialize_none()
	}
}

/// Serialises a [`Date`] to a string in the format "yyyymmdd".
#[allow(clippy::ref_option)]
fn jiff_ymd_direct<S>(value: &Date, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	jiff_ymd(&Some(*value), s)
}

/// Serialises an [`Option<Time>`] to a string in the format "hh:mm".
#[allow(clippy::ref_option)]
fn jiff_hhmm<S>(value: &Option<Time>, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	if let Some(value) = value {
		s.serialize_str(value.strftime("%H:%M").to_string().as_str())
	} else {
		s.serialize_none()
	}
}

/// Serialises a [`Time`] to a string in the format "hh:mm".
#[allow(clippy::ref_option)]
fn jiff_hhmm_direct<S>(value: &Time, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	jiff_hhmm(&Some(*value), s)
}

/// Serialises a [`bool`] to a string "1" or "0".
#[allow(clippy::trivially_copy_pass_by_ref)]
fn bool_int<S>(value: &bool, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	s.serialize_u8(u8::from(*value))
}

/// Serialises a latitude and longitude pair to a comma-separated string.
#[allow(clippy::ref_option)]
fn lat_long<S>(value: &Option<(f32, f32)>, s: S) -> Result<S::Ok, S::Error>
where
	S: Serializer,
{
	if let Some(value) = value {
		s.serialize_str(format!("{},{}", value.0, value.1).as_str())
	} else {
		s.serialize_none()
	}
}