import type { MigrationLiveDefinition } from '@d8d-appcontainer/types'

const createMessagesTable: MigrationLiveDefinition = {
  name: "create_messages_table",
  up: async (api) => {
    await api.schema.createTable('messages', (table) => {
      table.increments('id').primary().comment('消息ID');
      table.string('title').notNullable().comment('消息标题');
      table.text('content').notNullable().comment('消息内容');
      table.enum('type', ['system', 'private', 'announce']).notNullable().comment('消息类型');
      table.integer('sender_id').unsigned().references('id').inTable('users').onDelete('SET NULL').comment('发送者ID');
      table.string('sender_name').comment('发送者名称');
      table.timestamps(true, true);
      
      // 添加索引
      table.index('type');
      table.index('sender_id');
    });
  },
  down: async (api) => {
    await api.schema.dropTable('messages');
  }
}

export default createMessagesTable;