// router
import express from "express";
const router = express.Router();
export default router;

// db
import { db } from "#db";
import { ZDbShema } from "#db-shema";
import { sql } from "slonik";

// error
// import { ApiError } from "#exceptions/api-error.ts";

// dayjs
import dayjs from "dayjs";
import utc from "dayjs/plugin/utc.js";
dayjs.extend(utc);
import timezone from "dayjs/plugin/timezone.js";
dayjs.extend(timezone);

// other
import { z } from "zod";

import { v7 as uuidv7 } from "uuid";
// import { logger } from "#logger";
import { UserUtils } from "#utils/user-utils.js";
import { LocationsManagementApi } from "#api/locations-management-api.js";
import { CheckPermissionsService } from "#modules/permissions-management/check-permissions-service.js";
import { RouterUtils } from "#utils/router-utils.js";

dayjs.extend(utc);

router.post("/create-location", async (req, res, next) => {
  try {
    // валидация запроса
    const { name, eventId, rooms } =
      LocationsManagementApi.ZCreateLocation.req.parse(req.body);

    const userId = UserUtils.getUserFromReq(req).userId;

    await CheckPermissionsService.checkEntityPermission(
      eventId,
      userId,
      "edit_event",
      "edit_event_true",
    );

    const locationId = uuidv7();

    // location
    await db.query(
      sql.unsafe`
         insert into locations_management.locations
           (location_id, name, event_id)
         values
           (${locationId}, ${name}, ${eventId})`,
    );

    // rooms
    for (const room of rooms) {
      const roomId = uuidv7();
      await db.query(
        sql.unsafe`
          insert into locations_management.rooms
            (room_id, location_id, name, parent_id)
          values
            (${roomId}, ${locationId}, ${room.name}, ${room.parentId})
        `,
      );
    }

    RouterUtils.validAndSendResponse(
      LocationsManagementApi.ZCreateLocation.res,
      res,
      {
        code: "success",
      },
    );
  } catch (e) {
    next(e);
  }
});

router.post("/get-event-locations", async (req, res, next) => {
  try {
    // валидация запроса
    const { eventId } = LocationsManagementApi.ZGetEventLocations.req.parse(
      req.body,
    );

    const userId = UserUtils.getUserFromReq(req).userId;

    await CheckPermissionsService.checkEntityPermission(
      eventId,
      userId,
      "edit_event",
      "edit_event_true",
    );

    const locations = await db.any(
      sql.type(
        z.object({
          location_id: ZDbShema.locations_management.locations.location_id,
          name: ZDbShema.locations_management.locations.name,
          rooms: z.array(
            z.object({
              room_id: ZDbShema.locations_management.rooms.room_id,
              name: ZDbShema.locations_management.rooms.name,
              parent_id: ZDbShema.locations_management.rooms.parent_id,
            }),
          ),
        }),
      )` 
        SELECT
            l.location_id,
            l.name,
            COALESCE(
                json_agg(
                    jsonb_build_object(
                        'room_id', r.room_id,
                        'name', r.name,
                        'parent_id', r.parent_id
                    )
                ) FILTER (WHERE r.room_id IS NOT NULL),
                '[]'::json
            ) AS rooms
        FROM locations_management.locations l
        LEFT JOIN locations_management.rooms r ON l.location_id = r.location_id
        WHERE l.event_id = ${eventId}
        GROUP BY l.location_id, l.name;
              `,
    );

    RouterUtils.validAndSendResponse(
      LocationsManagementApi.ZGetEventLocations.res,
      res,
      {
        code: "success",
        locations: [...locations],
      },
    );
  } catch (e) {
    next(e);
  }
});