Throw away flix files in favor of a flix database

crates/model/src/numbers.rs

@@ -0,0 +1,78 @@
+//! This module contains season and episode numbers and related errors
+
+use core::ops::RangeInclusive;
+use std::collections::HashSet;
+
+/// Type alias for representing season numbers
+pub type SeasonNumber = u32;
+/// Type alias for representing episode numbers
+pub type EpisodeNumber = u32;
+
+/// Potential errors when building EpisodeNumbers
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+	/// There are no episodes
+	#[error("zero episodes")]
+	Zero,
+	/// There are gaps in the episodes
+	#[error("noncontiguous episodes")]
+	Noncontiguous,
+}
+
+/// A wrapper for handling single and multi-episode entries
+#[derive(Debug)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
+pub struct EpisodeNumbers(RangeInclusive<EpisodeNumber>);
+
+impl TryFrom<&[EpisodeNumber]> for EpisodeNumbers {
+	type Error = Error;
+
+	fn try_from(value: &[EpisodeNumber]) -> Result<Self, Self::Error> {
+		match value {
+			[] => Err(Error::Zero),
+			[n] => Ok(Self(*n..=*n)),
+			_ => {
+				// min and max will always exist
+				let min = value.iter().copied().min().unwrap_or_default();
+				let max = value.iter().copied().max().unwrap_or_default();
+				let len = value.len();
+
+				if usize::try_from(max.saturating_sub(min).saturating_add(1)) != Ok(len) {
+					return Err(Error::Noncontiguous);
+				}
+
+				let set: HashSet<_> = value.iter().copied().collect();
+				if set.len() != len {
+					return Err(Error::Noncontiguous);
+				}
+
+				Ok(Self(min..=max))
+			}
+		}
+	}
+}
+
+impl EpisodeNumbers {
+	/// Get the range of episodes
+	pub fn as_range(&self) -> &RangeInclusive<EpisodeNumber> {
+		&self.0
+	}
+}
+
+// impl EpisodeNumbers {
+// 	/// Get the primary episode number of this episode
+// 	pub fn primary_episode_number(&self) -> Option<EpisodeNumber> {
+// 		match self {
+// 			EpisodeNumbers::Single { number } => Some(*number),
+// 			EpisodeNumbers::Multiple { numbers } => numbers.first().copied(),
+// 		}
+// 	}
+
+// 	/// Get additional episode numbers of this episode
+// 	pub fn additional_episode_numbers(&self) -> &[EpisodeNumber] {
+// 		match self {
+// 			EpisodeNumbers::Single { number: _ } => &[],
+// 			EpisodeNumbers::Multiple { numbers } => numbers.get(1..).unwrap_or(&[]),
+// 		}
+// 	}
+// }