<?php

namespace App\Http\Controllers;

use App\Models\GpsPoint;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;
use Illuminate\Support\Carbon;

class GpsController extends Controller
{
    // POST /api/gps
    public function store(Request $req)
    {
        $data = $req->validate([
            'device_id'   => ['required','string','max:64'],
            'lat'         => ['required','numeric','between:-90,90'],
            'lng'         => ['required','numeric','between:-180,180'],
            'speed'       => ['nullable','numeric'],
            'altitude'    => ['nullable','numeric'],
            'heading'     => ['nullable','integer','between:0,359'],
            'recorded_at' => ['nullable','date'], // ISO8601 preferred
            'meta'        => ['nullable'],
        ]);

        $data['recorded_at'] = isset($data['recorded_at'])
            ? Carbon::parse($data['recorded_at'])
            : now();

        $point = GpsPoint::create($data);

        return response()->json(['id' => $point->id], 201);
    }

    // GET /api/gps/latest?device_id=abc
    public function latest(Request $req)
    {
        $req->validate(['device_id' => ['required','string']]);

        $point = GpsPoint::where('device_id', $req->device_id)
            ->orderByDesc('recorded_at')
            ->orderByDesc('id')
            ->first();

        if (!$point) {
            return response()->json(['message' => 'Not found'], 404);
        }

        return response()->json($point);
    }

    // GET /api/gps/track?device_id=abc&since=2025-08-28T00:00:00Z&until=2025-08-28T23:59:59Z
    public function track(Request $req)
    {
        $req->validate([
            'device_id' => ['required','string'],
            'since' => ['nullable','date'],
            'until' => ['nullable','date'],
            'limit' => ['nullable','integer','between:1,10000'],
        ]);

        $q = GpsPoint::where('device_id', $req->device_id);

        if ($req->since) $q->where('recorded_at', '>=', $req->since);
        if ($req->until) $q->where('recorded_at', '<=', $req->until);

        $limit = $req->input('limit', 1000);

        return response()->json(
            $q->orderBy('recorded_at')->orderBy('id')->limit($limit)->get()
        );
    }
}