<?php

namespace App\Http\Controllers;

use App\Models\PageContent;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Validation\ValidationException;

class PageContentController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(): JsonResponse
    {
        try {
            $content = PageContent::all();
            return response()->json($content);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud ophalen mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): JsonResponse
    {
        try {
            $validated = $request->validate([
                'key' => 'required|string|max:255|unique:page_content,key',
                'value' => 'required|string',
                'description' => 'nullable|string',
            ], [
                'key.required' => 'Sleutel is verplicht',
                'key.unique' => 'Deze sleutel bestaat al',
                'key.max' => 'Sleutel mag maximaal 255 karakters bevatten',
                'value.required' => 'Waarde is verplicht',
            ]);

            $content = PageContent::create($validated);

            return response()->json($content, 201);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validatie mislukt',
                'errors' => $e->errors()
            ], 422);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud aanmaken mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Display the specified resource.
     */
    public function show(PageContent $pageContent): JsonResponse
    {
        try {
            return response()->json($pageContent);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud ophalen mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, PageContent $pageContent): JsonResponse
    {
        try {
            $validated = $request->validate([
                'value' => 'required|string',
                'description' => 'nullable|string',
            ], [
                'value.required' => 'Waarde is verplicht',
            ]);

            $pageContent->update($validated);

            return response()->json($pageContent);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validatie mislukt',
                'errors' => $e->errors()
            ], 422);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud bijwerken mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(PageContent $pageContent): JsonResponse
    {
        try {
            $pageContent->delete();
            return response()->json([
                'message' => 'Pagina-inhoud succesvol verwijderd'
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud verwijderen mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Get a specific content by key
     */
    public function getByKey(string $key): JsonResponse
    {
        try {
            $content = PageContent::where('key', $key)->first();

            if (!$content) {
                return response()->json([
                    'message' => 'Pagina-inhoud niet gevonden'
                ], 404);
            }

            return response()->json($content);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud ophalen mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Update or create content by key
     */
    public function updateByKey(Request $request, string $key): JsonResponse
    {
        try {
            $validated = $request->validate([
                'value' => 'required|string',
                'description' => 'nullable|string',
            ], [
                'value.required' => 'Waarde is verplicht',
            ]);

            $content = PageContent::updateOrCreate(
                ['key' => $key],
                [
                    'value' => $validated['value'],
                    'description' => $validated['description'] ?? null
                ]
            );

            return response()->json($content);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validatie mislukt',
                'errors' => $e->errors()
            ], 422);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud bijwerken mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }

    /**
     * Get all content as key-value pairs for public access
     */
    public function getPublicContent(): JsonResponse
    {
        try {
            $content = PageContent::all()->pluck('value', 'key');
            return response()->json($content);
        } catch (\Exception $e) {
            return response()->json([
                'message' => 'Pagina-inhoud ophalen mislukt',
                'error' => $e->getMessage()
            ], 500);
        }
    }
}