created half baked database interface

ZboardDB.zig

@@ -0,0 +1,75 @@
+const std = @import("std");
+const c = @cImport({
+    @cInclude("sqlite3.h");
+});
+
+const ZBoardDB = struct {
+    db: *c.sqlite3,
+
+    pub fn init() !ZBoardDB {
+        var c_db: ?*c.sqlite3 = undefined;
+        if (c.SQLITE_OK != c.sqlite3_open(":memory:", &c_db)) {
+            return error.DBInitError;
+        }
+
+        const db: ZBoardDB = .{ .db = c_db };
+
+        try db.execute(
+            \\ CREATE TABLE IF NOT EXISTS users (
+            \\    id INTEGER PRIMARY KEY,
+            \\    name VARCHAR(255) NOT NULL UNIQUE
+            \\ );
+            \\ CREATE TABLE IF NOT EXISTS topics (
+            \\    id INTEGER PRIMARY KEY,
+            \\    topic VARCHAR(255) NOT NULL UNIQUE,
+            \\    user_id INTEGER NOT NULL REFERENCES users(id)
+            \\ );
+            \\    id INTEGER PRIMARY KEY,
+            \\    title VARCHAR(255) NOT NULL UNIQUE,
+            \\    topic_id INTEGER NOT NULL REFERENCES topics(id),
+            \\    user_id INTEGER NOT NULL REFERENCES users(id)
+            \\ );
+            \\ CREATE TABLE IF NOT EXISTS posts (
+            \\    id INTEGER PRIMARY KEY,
+            \\    content TEXT NOT NULL,
+            \\    thread_id INTEGER NOT NULL REFERENCES threads(id),
+            \\    user_id INTEGER NOT NULL REFERENCES users(id),
+            \\    epoch INTEGER NOT NULL
+            \\ );
+        );
+
+        return db;
+    }
+
+    pub fn deinit(self: ZBoardDB) !void {
+        _ = c.sqlite3_close(self.db);
+    }
+
+    fn execute(self: ZBoardDB, query: [:0]const u8) !void {
+        var errmsg: [*c]u8 = undefined;
+        if (c.SQLITE_OK != c.sqlite3_exec(self.db, query, null, null, &errmsg)) {
+            defer c.sqlite3_free(errmsg);
+            std.debug.print("Exec query failed: {s}\n", .{errmsg});
+            return error.execError;
+        }
+        return;
+    }
+
+    fn getCurrentUser() !void {}
+
+    fn createUser() !void {}
+    fn deleteUser() !void {}
+
+    fn createTopic() !void {}
+    fn deleteTopic() !void {}
+
+    fn createThread() !void {}
+    fn deleteThread() !void {}
+
+    fn createPost() !void {}
+    fn deletePost() !void {}
+
+    fn getTopics() !void {}
+    fn getThreadsByTopic() !void {}
+    fn getPostsByThread() !void {}
+};