258a536254
Add a private per-user reaction resource: a manga_reactions table (one row per user+manga, like/dislike, cascades) and endpoints PUT/DELETE /mangas/:id/reaction plus GET /me/reactions/:manga_id, wired on the existing per-user seam (mirrors bookmarks/read_progress). Unknown manga → 404 via the FK-violation mapping; an invalid reaction value → 422. Reactions are never exposed publicly — this is a taste signal for the upcoming content-based recommendations. Integration tests cover set/toggle/clear/read, per-user isolation, and the 404/422/401 paths. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
use serde::{Deserialize, Serialize};
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use uuid::Uuid;
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/// A user's private taste signal on a manga. Stored as text in
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/// `manga_reactions.reaction` (CHECK-constrained), so we map to/from a
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/// `&str` at the repo layer rather than deriving a Postgres enum type.
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub enum Reaction {
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Like,
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Dislike,
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}
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impl Reaction {
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pub fn as_str(self) -> &'static str {
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match self {
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Reaction::Like => "like",
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Reaction::Dislike => "dislike",
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}
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}
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/// Parse a stored/inbound value. Returns `None` for anything outside the
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/// closed vocabulary (the DB CHECK guarantees stored rows are valid; this
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/// also guards the inbound API body).
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pub fn parse(s: &str) -> Option<Reaction> {
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match s {
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"like" => Some(Reaction::Like),
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"dislike" => Some(Reaction::Dislike),
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_ => None,
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}
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}
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}
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/// Response shape for `GET /me/reactions/:manga_id` — the current user's
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/// reaction on one manga, or `null` when they haven't reacted.
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#[derive(Debug, Clone, Serialize)]
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pub struct MangaReaction {
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pub manga_id: Uuid,
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pub reaction: Option<Reaction>,
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}
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