Added SQLite storage backend.

2025-04-27 22:31:35 +00:00 · 2025-04-27 22:31:35 +00:00 · 3f6007922c
commit 3f6007922c
parent 999ce86a27
21 changed files with 665 additions and 245 deletions
--- a/SharpChat.SQLite/SQLiteMigrations.cs
+++ b/SharpChat.SQLite/SQLiteMigrations.cs
@ -0,0 +1,45 @@
+namespace SharpChat.SQLite;
+
+public class SQLiteMigrations(SQLiteConnection conn) {
+    public async Task RunMigrations() {
+        long currentVersion = await conn.RunQueryValue<long>("PRAGMA user_version");
+        long version = currentVersion;
+
+        async Task doMigration(int expect, Func<Task> action) {
+            if(version < expect) {
+                await action();
+                ++version;
+            }
+        };
+
+        await doMigration(1, CreateMessagesTable);
+
+        if(currentVersion != version)
+            await conn.RunCommand($"PRAGMA user_version = {version}");
+    }
+
+    private async Task CreateMessagesTable() {
+        await conn.RunCommand(
+            @"CREATE TABLE ""messages"" ("
+            + @"""msg_id"" INTEGER NOT NULL,"
+            + @"""msg_type"" TEXT NOT NULL COLLATE NOCASE,"
+            + @"""msg_created"" TEXT NOT NULL COLLATE NOCASE,"
+            + @"""msg_deleted"" TEXT DEFAULT NULL COLLATE NOCASE,"
+            + @"""msg_channel"" TEXT DEFAULT NULL COLLATE NOCASE,"
+            + @"""msg_sender"" TEXT DEFAULT NULL COLLATE BINARY,"
+            + @"""msg_sender_name"" TEXT DEFAULT NULL COLLATE NOCASE,"
+            + @"""msg_sender_colour"" INTEGER DEFAULT NULL,"
+            + @"""msg_sender_rank"" INTEGER DEFAULT NULL,"
+            + @"""msg_sender_nick"" TEXT DEFAULT NULL COLLATE NOCASE,"
+            + @"""msg_sender_perms"" INTEGER DEFAULT NULL,"
+            + @"""msg_data"" BLOB DEFAULT NULL CHECK(JSON_VALID(""msg_data"") AND JSON_TYPE(""msg_data"") = ""object"") COLLATE BINARY,"
+            + @"PRIMARY KEY(""msg_id"")"
+            + @");"
+        );
+        await conn.RunCommand(@"CREATE INDEX ""messages_channel_index"" ON ""messages"" (""msg_channel"");");
+        await conn.RunCommand(@"CREATE INDEX ""messages_created_index"" ON ""messages"" (""msg_created"");");
+        await conn.RunCommand(@"CREATE INDEX ""messages_deleted_index"" ON ""messages"" (""msg_deleted"");");
+        await conn.RunCommand(@"CREATE INDEX ""messages_event_type"" ON ""messages"" (""msg_type"");");
+        await conn.RunCommand(@"CREATE INDEX ""messages_sender_index"" ON ""messages"" (""msg_sender"");");
+    }
+}