/**
 * PUT /api/messages/:instanceId/:chatId/alias
 * Update the alias of a chat
 */
import { query } from '../../../../utils/database'

export default defineEventHandler(async (event) => {
  const username = getHeader(event, 'x-authentik-username')
  if (!username) {
    throw createError({ statusCode: 401, message: 'Unauthorized' })
  }

  const instanceId = getRouterParam(event, 'instanceId')
  const chatId = getRouterParam(event, 'chatId')

  if (!instanceId) {
    throw createError({ statusCode: 400, message: 'Missing instanceId' })
  }

  if (!chatId) {
    throw createError({ statusCode: 400, message: 'Missing chatId' })
  }

  const body = await readBody<{ alias: string | null }>(event)

  // alias can be null to remove it, or a string to set it
  if (body?.alias === undefined) {
    throw createError({ statusCode: 400, message: 'Missing alias in request body' })
  }

  try {
    // Update the alias
    const result = await query(
      `UPDATE chats
       SET alias = $1, updated_at = NOW()
       WHERE id = $2 AND instance_id = $3
       RETURNING id, jid, name, alias, is_group`,
      [body.alias || null, chatId, instanceId]
    )

    if (result.rows.length === 0) {
      throw createError({ statusCode: 404, message: 'Chat not found' })
    }

    const chat = result.rows[0]
    return {
      success: true,
      chat: {
        id: chat.id,
        jid: chat.jid,
        name: chat.name,
        alias: chat.alias,
        isGroup: chat.is_group
      }
    }
  } catch (error: any) {
    console.error('[Alias API] Error updating alias:', error)

    if (error.statusCode) {
      throw error
    }

    throw createError({
      statusCode: 500,
      message: error.message || 'Error updating alias'
    })
  }
})