using InvercargillSql.Migrations;

namespace ClankerSaddle.Data.Migrations {

    /**
     * Web-stack raw terminal log: the daemon's PTY output chunks (GET
     * /log?since=), appended while a session is active. When a session
     * has rows here, the terminal view renders the concatenated raw log
     * instead of the typed entry stream (which older sessions keep
     * using). The (session_id, seq) pair is unique so poll retries can
     * never duplicate a chunk.
     */
    public class M0005_RawLog : Migration {

        public override string name { get { return "Raw log: session_raw_log"; } }
        public override uint64 serial { get { return 5; } }
        public override string migration_namespace { get { return "clanker-saddle"; } }

        public override void up(MigrationBuilder b) {
            b.create_table("session_raw_log", (t) => {
                t.column<int64?>("id")
                    .auto_increment()
                    .primary_key();
                t.column<int64?>("session_id")
                    .not_null()
                    .references("sessions", "id")
                    .indexed();
                t.column<int64?>("seq")
                    .not_null();
                t.column<string>("chunk")
                    .not_null();
                t.unique("uq_session_raw_log_seq", {"session_id", "seq"});
            });
        }

        public override void down(MigrationBuilder b) {
            b.drop_table("session_raw_log");
        }
    }
}