'use strict';

// Raw SQL — Sequelize's createTable() wraps ENUM creation in a `DO $$...$$`
// block for idempotency, which CockroachDB rejects ("CREATE TYPE usage
// inside a function definition is not supported"). STRING + CHECK instead,
// same pattern used throughout this schema for CRDB compatibility.
module.exports = {
  async up(queryInterface) {
    await queryInterface.sequelize.query(`
      CREATE TABLE completion_requirements (
        requirement_id UUID         PRIMARY KEY,
        entity_type    TEXT         NOT NULL,
        entity_id      BIGINT       NOT NULL,
        type           TEXT         NOT NULL,
        min_percent    INTEGER      NULL,
        button_label   TEXT         NULL,
        is_required    BOOLEAN      NOT NULL DEFAULT true,
        "order"        INTEGER      NOT NULL DEFAULT 0,
        "createdBy"    BIGINT       NULL,
        "updatedBy"    BIGINT       NULL,
        "deletedBy"    BIGINT       NULL,
        "createdAt"    TIMESTAMPTZ  NOT NULL DEFAULT CURRENT_TIMESTAMP,
        "updatedAt"    TIMESTAMPTZ  NOT NULL DEFAULT CURRENT_TIMESTAMP,
        "deletedAt"    TIMESTAMPTZ  NULL,
        CONSTRAINT check_cr_entity_type CHECK (entity_type IN ('course', 'unit', 'lesson')),
        CONSTRAINT check_cr_type CHECK (type IN ('read_all_content', 'pass_quiz', 'watch_percent', 'manual_complete', 'watch_video', 'listen_audio'))
      );
    `);

    await queryInterface.sequelize.query(
      `CREATE INDEX idx_cr_entity_type_entity_id ON completion_requirements (entity_type, entity_id);`
    );
    await queryInterface.sequelize.query(
      `CREATE INDEX idx_cr_type ON completion_requirements (type);`
    );
  },

  async down(queryInterface) {
    await queryInterface.sequelize.query(`DROP TABLE IF EXISTS completion_requirements;`);
  },
};