<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Palette;
use App\Models\PaletteColor;
use Illuminate\Support\Facades\Storage;

class PaletteController extends Controller
{
    public function index(Request $request)
    {
        $palettes = Palette::all();
        
        // Check if it's an AJAX request
        if ($request->ajax()) {
            return response()->json($palettes);
        }

        return view('palette-editor', compact('palettes'));
    }

    public function store(Request $request)
    {
        $request->validate([
            'name' => 'required|unique:palettes,name',
        ]);

        $palette = Palette::create(['name' => $request->name]);
        return response()->json($palette);
    }

    public function addColor(Request $request, Palette $palette)
    {
        $request->validate([
            'name' => 'required|regex:/^[a-z-]+$/',
            'hex_value' => 'required|regex:/^#[a-fA-F0-9]{6}$/'
        ]);

        $color = PaletteColor::create([
            'palette_id' => $palette->id,
            'name' => $request->name,
            'hex_value' => $request->hex_value
        ]);

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

    public function updateColor(Request $request, Palette $palette, PaletteColor $color)
    {
        $request->validate([
            'name' => 'required|regex:/^[a-z-]+$/',
            'hex_value' => 'required|regex:/^#[a-fA-F0-9]{6}$/'
        ]);

        $color->update([
            'name' => $request->name,
            'hex_value' => $request->hex_value
        ]);

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

    public function deleteColor(Palette $palette, PaletteColor $color)
    {
        if ($palette->name === 'default-colors') {
            return response()->json(['message' => 'Cannot delete colors from the default palette'], 403);
        }

        $color->delete();
        return response()->json(['message' => 'Color deleted']);
    }

    public function getColors(Palette $palette)
    {
        return response()->json($palette->colors);
    }

    public function export(Palette $palette)
    {
        $palette->load('colors'); // Load the colors relationship
        $fileName = $palette->name . '.pal';
        $content = $palette->colors->map(function($color) {
            return [
                'name' => $color->name,
                'hex_value' => $color->hex_value
            ];
        })->toArray();
        $jsonContent = json_encode($content, JSON_PRETTY_PRINT); // Format JSON for readability
    
        return response($jsonContent, 200)
            ->header('Content-Type', 'application/json')
            ->header('Content-Disposition', 'attachment; filename="'.$fileName.'"');
    }    

    public function import(Request $request)
    {
        $request->validate([
            'file' => 'required|file|mimes:json,txt'
        ]);

        $file = $request->file('file');
        $content = json_decode(file_get_contents($file), true);

        $paletteName = pathinfo($file->getClientOriginalName(), PATHINFO_FILENAME);
        $palette = Palette::firstOrCreate(['name' => $paletteName]);

        foreach ($content as $color) {
            PaletteColor::updateOrCreate(
                ['palette_id' => $palette->id, 'name' => $color['name']],
                ['hex_value' => $color['hex_value']]
            );
        }

        return response()->json(['message' => 'Palette imported successfully', 'palette' => $palette]);
    }

    public function rename(Request $request, Palette $palette)
    {
        if ($palette->name === 'default-colors') {
            return response()->json(['message' => 'Cannot rename the default palette'], 403);
        }
    
        $request->validate([
            'name' => 'required|unique:palettes,name',
        ]);
    
        $palette->name = $request->name;
        $palette->save();
    
        return response()->json($palette);
    }
    

    public function delete(Palette $palette)
    {
        if ($palette->name === 'default-colors') {
            return response()->json(['message' => 'Cannot delete the default palette'], 403);
        }

        $palette->colors()->delete();
        $palette->delete();

        return response()->json(['message' => 'Palette deleted']);
    }
}