export interface PostgresSchemaContractTable {
  readonly name: string;
  readonly columns: readonly string[];
}

export interface PostgresSchemaContract {
  readonly schema: 'ql3';
  readonly contractName: 'control-core';
  readonly contractVersion: 2;
  readonly migrationId: 'pg-0003-run-retry-policy';
  readonly minimumServerMajor: 16;
  readonly maximumServerMajor: 18;
  readonly capabilities: Readonly<{
    run_core: 1;
    run_retry_policy: 1;
  }>;
  readonly tables: readonly PostgresSchemaContractTable[];
  readonly indexes: readonly string[];
  readonly checks: readonly string[];
  readonly foreignKeys: readonly string[];
}

function table(
  name: string,
  columns: readonly string[],
): PostgresSchemaContractTable {
  return Object.freeze({ name, columns: Object.freeze([...columns]) });
}

export const postgresqlControlSchemaContract: PostgresSchemaContract =
  Object.freeze({
    schema: 'ql3',
    contractName: 'control-core',
    contractVersion: 2,
    migrationId: 'pg-0003-run-retry-policy',
    minimumServerMajor: 16,
    maximumServerMajor: 18,
    capabilities: Object.freeze({ run_core: 1, run_retry_policy: 1 }),
    tables: Object.freeze([
      table('schema_migrations', [
        'migration_id',
        'stream_id',
        'dialect',
        'checksum',
        'applied_at_ms',
      ]),
      table('schema_capabilities', [
        'contract_name',
        'contract_version',
        'migration_id',
        'capabilities',
        'updated_at_ms',
      ]),
      table('runs', [
        'id',
        'project_id',
        'task_id',
        'task_revision',
        'task_name',
        'task_snapshot_ref',
        'legacy_cron_id',
        'parent_run_id',
        'retry_of_run_id',
        'trigger_id',
        'trigger_type',
        'execution_origin',
        'execution_owner',
        'triggered_by',
        'request_id',
        'scheduled_for_ms',
        'status',
        'version',
        'event_sequence',
        'priority',
        'idempotency_key',
        'input_ref',
        'output_ref',
        'created_at_ms',
        'queued_at_ms',
        'started_at_ms',
        'finished_at_ms',
        'cancel_requested_at_ms',
        'cancel_reason',
        'error_code',
        'error_summary',
      ]),
      table('run_attempts', [
        'id',
        'run_id',
        'step_run_id',
        'attempt',
        'status',
        'executor_type',
        'worker_id',
        'executor_handle',
        'pid',
        'log_artifact_id',
        'lease_token',
        'lease_expires_at_ms',
        'deadline_at_ms',
        'callback_token_hash',
        'callback_sequence',
        'created_at_ms',
        'started_at_ms',
        'finished_at_ms',
        'exit_code',
        'error_code',
        'error_summary',
      ]),
      table('run_events', [
        'id',
        'run_id',
        'sequence',
        'type',
        'dedupe_key',
        'actor_type',
        'actor_id',
        'attempt_id',
        'step_run_id',
        'payload',
        'created_at_ms',
      ]),
      table('run_retry_policies', [
        'run_id',
        'max_attempts',
        'retry_on_lost',
        'safety',
        'backoff_base_ms',
        'backoff_max_ms',
        'next_attempt_at_ms',
        'version',
        'created_at_ms',
        'updated_at_ms',
      ]),
    ]),
    indexes: Object.freeze([
      'schema_migrations_pkey',
      'schema_capabilities_pkey',
      'runs_pkey',
      'ql3_runs_project_idempotency_uidx',
      'ql3_runs_project_created_idx',
      'ql3_runs_task_created_idx',
      'ql3_runs_dispatch_candidates_idx',
      'run_attempts_pkey',
      'ql3_run_attempts_run_attempt_uidx',
      'ql3_run_attempts_dispatch_candidates_idx',
      'ql3_run_attempts_lease_idx',
      'run_events_pkey',
      'ql3_run_events_run_sequence_uidx',
      'ql3_run_events_run_dedupe_uidx',
      'ql3_run_events_run_created_idx',
      'run_retry_policies_pkey',
      'ql3_run_retry_policies_due_idx',
      'ql3_runs_lost_retry_idx',
    ]),
    checks: Object.freeze([
      'ql3_schema_migrations_dialect_check',
      'ql3_schema_migrations_checksum_check',
      'ql3_schema_migrations_applied_at_check',
      'ql3_schema_capabilities_version_check',
      'ql3_schema_capabilities_payload_check',
      'ql3_schema_capabilities_updated_at_check',
      'ql3_runs_legacy_cron_id_check',
      'ql3_runs_execution_owner_check',
      'ql3_runs_scheduled_for_check',
      'ql3_runs_status_check',
      'ql3_runs_version_check',
      'ql3_runs_event_sequence_check',
      'ql3_runs_created_at_check',
      'ql3_runs_queued_at_check',
      'ql3_runs_started_at_check',
      'ql3_runs_finished_at_check',
      'ql3_runs_cancel_requested_at_check',
      'ql3_runs_cancel_reason_check',
      'ql3_run_attempts_attempt_check',
      'ql3_run_attempts_status_check',
      'ql3_run_attempts_pid_check',
      'ql3_run_attempts_lease_expiry_check',
      'ql3_run_attempts_deadline_check',
      'ql3_run_attempts_callback_sequence_check',
      'ql3_run_attempts_created_at_check',
      'ql3_run_attempts_started_at_check',
      'ql3_run_attempts_finished_at_check',
      'ql3_run_events_sequence_check',
      'ql3_run_events_actor_type_check',
      'ql3_run_events_payload_check',
      'ql3_run_events_created_at_check',
      'ql3_run_retry_policies_max_attempts_check',
      'ql3_run_retry_policies_safety_check',
      'ql3_run_retry_policies_backoff_base_check',
      'ql3_run_retry_policies_backoff_max_check',
      'ql3_run_retry_policies_next_attempt_check',
      'ql3_run_retry_policies_version_check',
      'ql3_run_retry_policies_created_at_check',
      'ql3_run_retry_policies_updated_at_check',
    ]),
    foreignKeys: Object.freeze([
      'ql3_schema_capabilities_migration_fk',
      'ql3_runs_parent_fk',
      'ql3_runs_retry_of_fk',
      'ql3_run_attempts_run_fk',
      'ql3_run_events_run_fk',
      'ql3_run_events_attempt_fk',
      'ql3_run_retry_policies_run_fk',
    ]),
  });