From a6529b89a25af9a58c0a2ca761f0c9180d5b3d40 Mon Sep 17 00:00:00 2001
From: Kart <sendtokartavya@gmail.com>
Date: Mon, 8 Jul 2024 10:29:50 -0400
Subject: [PATCH] Create `DigitalDurationDataV1` (#5186)

---
 components/experimental/src/duration/mod.rs   |  2 +
 .../src/duration/provider/digital.rs          | 64 +++++++++++++++++++
 .../experimental/src/duration/provider/mod.rs | 10 +++
 provider/source/src/cldr_serde/units/data.rs  | 21 ++++++
 4 files changed, 97 insertions(+)
 create mode 100644 components/experimental/src/duration/provider/digital.rs
 create mode 100644 components/experimental/src/duration/provider/mod.rs

diff --git a/components/experimental/src/duration/mod.rs b/components/experimental/src/duration/mod.rs
index 57ec74e6192..ec21ea1a710 100644
--- a/components/experimental/src/duration/mod.rs
+++ b/components/experimental/src/duration/mod.rs
@@ -8,6 +8,8 @@
 
 mod duration;
 mod formatter;
+pub mod provider;
+
 pub mod options;
 
 pub use duration::{Duration, DurationSign};
diff --git a/components/experimental/src/duration/provider/digital.rs b/components/experimental/src/duration/provider/digital.rs
new file mode 100644
index 00000000000..edb46edcd68
--- /dev/null
+++ b/components/experimental/src/duration/provider/digital.rs
@@ -0,0 +1,64 @@
+// 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)]
+
+//! Provider structs for digital data.
+
+use alloc::borrow::Cow;
+use alloc::string::{String, ToString};
+use core::str::FromStr;
+
+use displaydoc::Display;
+use icu_provider::prelude::*;
+
+#[icu_provider::data_struct(DigitalDurationDataV1Marker = "duration/digital@1")]
+#[derive(Debug, Clone, PartialEq)]
+#[cfg_attr(
+    feature = "datagen", 
+    derive(serde::Serialize, databake::Bake),
+    databake(path = icu_experimental::duration::provider)
+)]
+#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
+
+/// A struct containing digital duration data (durationUnit-type-* patterns).
+pub struct DigitalDurationDataV1<'data> {
+    /// The separator between the hour, minute, and second fields.
+    #[cfg_attr(feature = "serde", serde(borrow))]
+    separator: Cow<str, 'data>,
+
+    /// The number of digits to pad the hour field with.
+    hour_padding: u8,
+}
+
+/// Unknown time pattern: {0}
+#[derive(Debug, Display)]
+pub struct UnknownPatternError(String);
+
+impl<'data> FromStr for DigitalDurationDataV1<'data> {
+    type Err = UnknownPatternError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "hh:mm:ss" => Ok(DigitalDurationDataV1 {
+                separator: ":".into(),
+                hour_padding: 2,
+            }),
+            "h:mm:ss" => Ok(DigitalDurationDataV1 {
+                separator: ":".into(),
+                hour_padding: 1,
+            }),
+            "h.mm.ss" => Ok(DigitalDurationDataV1 {
+                separator: ".".into(),
+                hour_padding: 1,
+            }),
+            "h,mm,ss" => Ok(DigitalDurationDataV1 {
+                separator: ",".into(),
+                hour_padding: 1,
+            }),
+            _ => Err(UnknownPatternError(s.to_string())),
+        }
+    }
+}
diff --git a/components/experimental/src/duration/provider/mod.rs b/components/experimental/src/duration/provider/mod.rs
new file mode 100644
index 00000000000..24d4d96662a
--- /dev/null
+++ b/components/experimental/src/duration/provider/mod.rs
@@ -0,0 +1,10 @@
+// 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 ).
+
+//! Data provider struct definitions for this ICU4X component.
+//!
+//! Read more about data providers: [`icu_provider`]
+
+pub mod digital;
+pub use digital::{DigitalDurationDataV1, DigitalDurationDataV1Marker};
diff --git a/provider/source/src/cldr_serde/units/data.rs b/provider/source/src/cldr_serde/units/data.rs
index 61cb3046d9e..d367f8e1588 100644
--- a/provider/source/src/cldr_serde/units/data.rs
+++ b/provider/source/src/cldr_serde/units/data.rs
@@ -62,6 +62,24 @@ pub(crate) struct Patterns {
     pub(crate) other_compound_unit_pattern1: Option<String>,
 }
 
+#[derive(PartialEq, Debug, Deserialize)]
+pub struct DurationUnit {
+    #[serde(rename = "durationUnitPattern")]
+    pub(crate) pat: String,
+    #[serde(rename = "durationUnitPattern-alt-variant")]
+    pub(crate) alt_pat: Option<String>,
+}
+
+#[derive(PartialEq, Debug, Deserialize)]
+pub struct DurationUnits {
+    #[serde(rename = "durationUnit-type-hm")]
+    pub hm: DurationUnit,
+    #[serde(rename = "durationUnit-type-hms")]
+    pub hms: DurationUnit,
+    #[serde(rename = "durationUnit-type-ms")]
+    pub ms: DurationUnit,
+}
+
 // TODO: replace Value with specific structs
 #[derive(PartialEq, Debug, Deserialize)]
 pub(crate) struct UnitsData {
@@ -70,6 +88,9 @@ pub(crate) struct UnitsData {
     pub(crate) short: BTreeMap<String, Patterns>,
 
     pub(crate) narrow: BTreeMap<String, Patterns>,
+
+    #[serde(flatten)]
+    pub(crate) duration: DurationUnits,
 }
 
 #[derive(PartialEq, Debug, Deserialize)]