<?php

namespace App\Http\Controllers\Api\V1;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Models\SalesRoute;
use App\Models\Waypoint;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Carbon\Carbon;

class TrackingController extends Controller
{
    /**
     * GET /api/v1/routes
     * Get routes for the authenticated agent's scope (currently global)
     */
    public function index(Request $request): JsonResponse
    {
        $query = SalesRoute::with('user:id,employee_id,name,color');

        if ($request->has('date')) {
            $query->whereDate('date', $request->date);
        }

        $routes = $query->orderBy('date', 'desc')->get();

        $formattedRoutes = $routes->map(function ($route) {
            return [
                'id' => (string) $route->id,
                'salesId' => $route->user->employee_id ?? 'UNKNOWN',
                'salesName' => $route->user->name ?? 'Unknown',
                'date' => $route->date->format('Y-m-d'),
                'waypoints' => $route->waypoints->map(function ($wp) {
                    return [
                        'lat' => (float) $wp->latitude,
                        'lng' => (float) $wp->longitude,
                        'time' => Carbon::parse($wp->recorded_at)->format('H:i'),
                        'type' => $wp->type,
                    ];
                }),
            ];
        });

        return response()->json([
            'success' => true,
            'data' => $formattedRoutes
        ]);
    }

    /**
     * POST /api/v1/routes/waypoints
     * Add waypoint to active route
     */
    public function storeWaypoint(Request $request): JsonResponse
    {
        $request->validate([
            'lat' => 'required|numeric',
            'lng' => 'required|numeric',
            'employee_id' => 'required|string', // Required to identify who is moving
            'type' => 'nullable|in:gps,visit,checkin,checkout'
        ]);

        // Find user
        $user = User::where('employee_id', $request->employee_id)->first();
        if (!$user) {
            return response()->json(['success' => false, 'error' => 'User (Employee) not found'], 404);
        }

        $today = Carbon::today();

        // Get or create today's route
        $route = SalesRoute::firstOrCreate(
            ['user_id' => $user->id, 'date' => $today],
            ['status' => 'active', 'started_at' => now()]
        );

        // Create waypoint
        $waypoint = Waypoint::create([
            'sales_route_id' => $route->id,
            'type' => $request->type ?? 'gps',
            'latitude' => $request->lat,
            'longitude' => $request->lng,
            'recorded_at' => now(),
            'location_name' => 'API Integration',
        ]);

        return response()->json([
            'success' => true,
            'message' => 'Waypoint recorded successfully',
            'data' => [
                'id' => $waypoint->id,
                'lat' => $waypoint->latitude,
                'lng' => $waypoint->longitude,
                'recorded_at' => $waypoint->recorded_at
            ]
        ]);
    }
}