ddblocal/src/createtable.zig

const std = @import("std");
const sqlite = @import("sqlite");

pub fn handler(allocator: std.mem.Allocator, account_id: []const u8, event_data: []const u8) ![]const u8 {
    _ = event_data;
    // TODO: We'll need hold of the server response object here so we can muck with status
    // for client validation issues such as "table names must be > 2"

    // TODO: If the file exists, this will blow up
    // TODO: Need configuration for what directory to use
    // TODO: File names should align to account ids
    // TODO: Should this be a pool, and if so, how would we know when to close?
    var db = try sqlite.Db.init(.{
        .mode = sqlite.Db.Mode{ .File = "donotuse.db" },
        .open_flags = .{
            .write = true,
            .create = true,
        },
        .threading_mode = .MultiThread,
    });

    // TODO: Create metadata table by account on first create
    // DDB minimum table name length is 3. DDB local creates this table with metadata
    // This of course is only if the database is first run
    // try db.exec(
    //     \\CREATE TABLE dm (
    //     \\    TableName TEXT,
    //     \\    CreationDateTime INTEGER,
    //     \\    LastDecreaseDate INTEGER,
    //     \\    LastIncreaseDate INTEGER,
    //     \\    NumberOfDecreasesToday INTEGER,
    //     \\    ReadCapacityUnits INTEGER,
    //     \\    WriteCapacityUnits INTEGER,
    //     \\    TableInfo BLOB,
    //     \\    BillingMode INTEGER DEFAULT 0,
    //     \\    PayPerRequestDateTime INTEGER DEFAULT 0,
    //     \\    PRIMARY KEY(TableName)
    // );
    try db.exec("CREATE TABLE user(id integer primary key, age integer, name text)", .{}, .{});
    var al = std.ArrayList(u8).init(allocator);
    var writer = al.writer();
    try writer.print("table created for account {s}\n", .{account_id});
    return al.items;

    // This is what the music collection sample creates
    // CREATE TABLE IF NOT EXISTS "MusicCollection" (hashKey TEXT DEFAULT NULL, rangeKey TEXT DEFAULT NULL, hashValue BLOB NOT NULL, rangeValue BLOB NOT NULL, itemSize INTEGER DEFAULT 0, ObjectJSON BLOB NOT NULL, PRIMARY KEY(hashKey, rangeKey));
    // CREATE INDEX "MusicCollection*HVI" ON "MusicCollection" (hashValue);
}