<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\FormData;
use App\Models\Category;
use App\Models\Comment;
use Illuminate\Support\Str;

class FormDataController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(Request $request)
    {
        $query = FormData::with(['category', 'comments.user'])
            ->active();
        
        if ($request->has('gender')) {
            $gender = filter_var($request->gender, FILTER_VALIDATE_BOOLEAN);
            if ($gender) {
                $query->male();
            } else {
                $query->female();
            }
        }

        if ($request->has('email')) {
            $query->byEmail($request->email);
        }

        if ($request->has('today') && $request->boolean('today')) {
            $query->today();
        }

        if ($request->has('long_message') && $request->boolean('long_message')) {
            $query->withLongMessage(50);
        }

        $perPage = $request->get('per_page', 15);
        $formData = $query->paginate($perPage);

        return FormDataResource::collection($formData);
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
       $validator = Validator::make($request->all(), [
            'name' => 'required|min:2|max:100',
            'email' => 'required|email',
            'phone' => 'required|digits:11',
            'gender' => 'boolean',
            'message' => 'required|min:10|max:1000',
            'category_id' => 'nullable|exists:categories,id',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'errors' => $validator->errors()
            ], 422);
        }

        $formData = FormData::create($validator->validated());

        return response()->json([
            'success' => true,
            'message' => 'Form data created successfully',
            'data' => new FormDataResource($formData)
        ], 201);
    }

    /**
     * Display the specified resource.
     */
    public function show(FormData $formData)
    {
        $formData->load(['category', 'comments.user']);
        return new FormDataResource($formData);    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, FormData $formData)
    {
        $validator = Validator::make($request->all(), [
            'name' => 'sometimes|min:2|max:100',
            'email' => 'sometimes|email',
            'phone' => 'sometimes|digits:11',
            'gender' => 'sometimes|boolean',
            'message' => 'sometimes|min:10|max:1000',
            'category_id' => 'nullable|exists:categories,id',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'errors' => $validator->errors()
            ], 422);
        }

        $formData->update($validator->validated());

        return response()->json([
            'success' => true,
            'message' => 'Form data updated successfully',
            'data' => new FormDataResource($formData->fresh())
        ]);    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(FormData $formData)
    {
        $formData->delete();
        return response()->json([
            'success' => true,
            'message' => 'Form data soft deleted successfully'
        ]);
    }


    public function addComment(Request $request, FormData $formData)
    {
        $validator = Validator::make($request->all(), [
            'content' => 'required|min:5|max:500',
            'user_id' => 'nullable|exists:users,id',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'success' => false,
                'errors' => $validator->errors()
            ], 422);
        }

        $comment = $formData->comments()->create($validator->validated());

        return response()->json([
            'success' => true,
            'message' => 'Comment added successfully',
            'data' => $comment
        ], 201);
    }

    public function statistics()
    {
        $total = FormData::count();
        $maleCount = FormData::male()->count();
        $femaleCount = FormData::female()->count();
        $todayCount = FormData::today()->count();
        $withLongMessage = FormData::withLongMessage(100)->count();

        return response()->json([
            'success' => true,
            'data' => [
                'total' => $total,
                'male' => $maleCount,
                'female' => $femaleCount,
                'today' => $todayCount,
                'with_long_message' => $withLongMessage,
                'average_message_length' => round(FormData::avg(\DB::raw('LENGTH(message)')), 2),
            ]
        ]);
    }
}