// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

// Provider structs must be stable
#![allow(clippy::exhaustive_structs, clippy::exhaustive_enums)]

//! 🚧 \[Unstable\] Data provider struct definitions for this ICU4X component.
//!
//! <div class="stab unstable">
//! 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
//! including in SemVer minor releases. While the serde representation of data structs is guaranteed
//! to be stable, their Rust representation might not be. Use with caution.
//! </div>
//!
//! Read more about data providers: [`icu_provider`]

use core::ops::Deref;
use core::str::FromStr;
use icu_provider::prelude::*;
use tinystr::TinyAsciiStr;
use zerovec::ule::{AsULE, ULE};
use zerovec::{ZeroMap2d, ZeroSlice, ZeroVec};

pub mod names;

#[cfg(feature = "compiled_data")]
#[derive(Debug)]
/// Baked data
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. In particular, the `DataProvider` implementations are only
/// guaranteed to match with this version's `*_unstable` providers. Use with caution.
/// </div>
pub struct Baked;

#[cfg(feature = "compiled_data")]
const _: () = {
    pub mod icu {
        pub use crate as timezone;
    }
    icu_timezone_data::make_provider!(Baked);
    icu_timezone_data::impl_time_zone_bcp47_to_iana_v1!(Baked);
    icu_timezone_data::impl_time_zone_iana_to_bcp47_v1!(Baked);
    icu_timezone_data::impl_time_zone_iana_to_bcp47_v2!(Baked);
    icu_timezone_data::impl_time_zone_metazone_period_v1!(Baked);
};

#[cfg(feature = "datagen")]
/// The latest minimum set of keys required by this component.
pub const KEYS: &[DataKey] = &[
    MetazonePeriodV1Marker::KEY,
    names::Bcp47ToIanaMapV1Marker::KEY,
    names::IanaToBcp47MapV1Marker::KEY,
    names::IanaToBcp47MapV2Marker::KEY,
];

/// TimeZone ID in BCP47 format
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[repr(transparent)]
#[derive(Debug, Clone, Copy, Eq, Ord, PartialEq, PartialOrd, yoke::Yokeable, ULE, Hash)]
#[cfg_attr(feature = "datagen", derive(serde::Serialize, databake::Bake), databake(path = icu_timezone::provider))]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
pub struct TimeZoneBcp47Id(pub TinyAsciiStr<8>);

impl FromStr for TimeZoneBcp47Id {
    type Err = tinystr::TinyStrError;
    fn from_str(s: &str) -> Result<Self, Self::Err> {
        TinyAsciiStr::from_str(s).map(Into::into)
    }
}

impl From<TinyAsciiStr<8>> for TimeZoneBcp47Id {
    fn from(s: TinyAsciiStr<8>) -> Self {
        Self(s)
    }
}

impl From<TimeZoneBcp47Id> for TinyAsciiStr<8> {
    fn from(other: TimeZoneBcp47Id) -> Self {
        other.0
    }
}

impl Deref for TimeZoneBcp47Id {
    type Target = TinyAsciiStr<8>;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl AsULE for TimeZoneBcp47Id {
    type ULE = Self;

    #[inline]
    fn to_unaligned(self) -> Self::ULE {
        self
    }

    #[inline]
    fn from_unaligned(unaligned: Self::ULE) -> Self {
        unaligned
    }
}

impl<'a> zerovec::maps::ZeroMapKV<'a> for TimeZoneBcp47Id {
    type Container = ZeroVec<'a, TimeZoneBcp47Id>;
    type Slice = ZeroSlice<TimeZoneBcp47Id>;
    type GetType = TimeZoneBcp47Id;
    type OwnedType = TimeZoneBcp47Id;
}

/// Metazone ID in a compact format
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[repr(transparent)]
#[derive(Debug, Clone, Copy, Eq, Ord, PartialEq, PartialOrd, yoke::Yokeable, ULE, Hash)]
#[cfg_attr(feature = "datagen", derive(serde::Serialize, databake::Bake), databake(path = icu_timezone::provider))]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
pub struct MetazoneId(pub TinyAsciiStr<4>);

impl From<TinyAsciiStr<4>> for MetazoneId {
    fn from(s: TinyAsciiStr<4>) -> Self {
        Self(s)
    }
}

impl From<MetazoneId> for TinyAsciiStr<4> {
    fn from(other: MetazoneId) -> Self {
        other.0
    }
}

impl FromStr for MetazoneId {
    type Err = tinystr::TinyStrError;
    fn from_str(s: &str) -> Result<Self, Self::Err> {
        TinyAsciiStr::from_str(s).map(Into::into)
    }
}

impl AsULE for MetazoneId {
    type ULE = Self;

    #[inline]
    fn to_unaligned(self) -> Self::ULE {
        self
    }

    #[inline]
    fn from_unaligned(unaligned: Self::ULE) -> Self {
        unaligned
    }
}

impl<'a> zerovec::maps::ZeroMapKV<'a> for MetazoneId {
    type Container = ZeroVec<'a, MetazoneId>;
    type Slice = ZeroSlice<MetazoneId>;
    type GetType = MetazoneId;
    type OwnedType = MetazoneId;
}

/// An ICU4X mapping to the metazones at a given period.
/// See CLDR-JSON metaZones.json for more context.
///
/// <div class="stab unstable">
/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
/// to be stable, their Rust representation might not be. Use with caution.
/// </div>
#[icu_provider::data_struct(marker(
    MetazonePeriodV1Marker,
    "time_zone/metazone_period@1",
    singleton
))]
#[derive(PartialEq, Debug, Clone, Default)]
#[cfg_attr(
    feature = "datagen",
    derive(serde::Serialize, databake::Bake),
    databake(path = icu_timezone::provider),
)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
#[yoke(prove_covariance_manually)]
pub struct MetazonePeriodV1<'data>(
    /// The default mapping between period and metazone id. The second level key is a wall-clock time represented as the number of minutes since the local unix epoch. It represents when the metazone started to be used.
    #[cfg_attr(feature = "serde", serde(borrow))]
    pub ZeroMap2d<'data, TimeZoneBcp47Id, i32, Option<MetazoneId>>,
);