import { initContract } from '@ts-rest/core';
import { z } from 'zod';
import {
  callSessionSchema,
  initiateCallSchema,
  callStatusSchema,
  callLogQuerySchema,
} from '../schemas/shopkeeper-telephony.schemas';
import {
  errorResponseSchema,
  insufficientTokensErrorSchema,
  paginationResponseSchema,
} from '../schemas/common.schemas';

const c = initContract();

export const shopkeeperTelephonyContract = c.router({
  incomingWebhook: {
    method: 'POST',
    path: '/shopkeeper/telephony/webhook',
    body: z.object({
      sessionId: z.string(),
      callerNumber: z.string(),
      destinationNumber: z.string(),
      direction: z.string(),
      isActive: z.coerce.boolean(),
      dtmfDigits: z.string().optional(),
      /** When present (Africa's Talking recording callback), we run STT → intent → TTS → Play. */
      recordingUrl: z.string().url().optional(),
      recording_url: z.string().url().optional(),
    }),
    responses: {
      200: z.object({ action: z.string() }),
      400: errorResponseSchema,
    },
    summary: "Africa's Talking incoming call handler",
  },
  callStatusWebhook: {
    method: 'POST',
    path: '/shopkeeper/telephony/status',
    body: callStatusSchema,
    responses: {
      200: z.object({ received: z.boolean() }),
      400: errorResponseSchema,
    },
    summary: 'Call duration/cost status updates',
  },
  initiateCall: {
    method: 'POST',
    path: '/shopkeeper/telephony/call',
    body: initiateCallSchema,
    responses: {
      200: z.object({
        callSession: callSessionSchema,
        tokensCharged: z.number().int(),
      }),
      400: errorResponseSchema,
      401: errorResponseSchema,
      402: insufficientTokensErrorSchema,
    },
    summary: 'Trigger outbound proactive call to shop owner',
  },
  getCallLogs: {
    method: 'GET',
    path: '/shopkeeper/telephony/logs',
    query: callLogQuerySchema,
    responses: {
      200: z.object({
        calls: z.array(callSessionSchema),
        pagination: paginationResponseSchema,
      }),
      401: errorResponseSchema,
    },
    summary: 'Call history for shop',
  },
});