Move to SQLite (#13)

youmubot-db-sql/migrations/20210329111010_osu_users.sql

@@ -0,0 +1,12 @@
+-- Add migration script here
+
+CREATE TABLE osu_users (
+    user_id     BIGINT   NOT NULL PRIMARY KEY,
+    id          BIGINT   NOT NULL UNIQUE,
+    last_update DATETIME NOT NULL,
+    pp_std      REAL     NULL,
+    pp_taiko    REAL     NULL,
+    pp_mania    REAL     NULL,
+    pp_catch    REAL     NULL,
+    failures    INT      NOT NULL DEFAULT 0
+);

youmubot-db-sql/migrations/20210331094454_more_osu.sql

@@ -0,0 +1,45 @@
+-- Add migration script here
+
+CREATE TABLE osu_last_beatmaps (
+    channel_id    BIGINT NOT NULL PRIMARY KEY,
+    beatmap       BLOB   NOT NULL,
+    mode          INT    NOT NULL
+);
+
+CREATE TABLE osu_user_best_scores (
+    beatmap_id BIGINT NOT NULL,
+    mode       INT    NOT NULL,
+    user_id    INT    NOT NULL REFERENCES osu_users(user_id) ON DELETE CASCADE,
+    mods       BIGINT NOT NULL,
+
+    cached_at DATETIME NOT NULL,
+    score     BLOB     NOT NULL,
+
+    PRIMARY KEY (beatmap_id, mode, user_id, mods)
+);
+
+CREATE TABLE osu_cached_beatmaps (
+    beatmap_id BIGINT NOT NULL,
+    mode       INT    NOT NULL,
+    
+    cached_at DATETIME NOT NULL,
+    beatmap   BLOB     NOT NULL,
+
+    PRIMARY KEY (beatmap_id, mode)
+);
+
+CREATE TABLE osu_cached_beatmapsets (
+    beatmapset_id BIGINT NOT NULL,
+    beatmap_id    BIGINT NOT NULL,
+    mode          INT    NOT NULL,
+
+    PRIMARY KEY (beatmapset_id, beatmap_id, mode),
+    FOREIGN KEY (beatmap_id, mode) REFERENCES osu_cached_beatmaps (beatmap_id, mode)
+);
+
+CREATE TABLE osu_cached_beatmap_contents (
+    beatmap_id BIGINT NOT NULL PRIMARY KEY,
+
+    cached_at DATETIME NOT NULL,
+    content   BLOB     NOT NULL
+);