<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Resources\SkillResource;
use App\Models\Skill;

class SkillController extends Controller
{
    public function index()
    {
        $lang = app()->getLocale();
        $skills = Skill::with('projects')->ordered()->get();
        $grouped = $skills->groupBy('category');

        $data = $grouped->map(function ($categorySkills, $category) use ($lang) {
            return [
                'category' => $category,
                'category_label' => $this->getCategoryLabel($category, $lang),
                'skills' => SkillResource::collection($categorySkills),
            ];
        })->values();

        return response()->json([
            'data' => $data,
            'meta' => [
                'lang' => $lang,
                'total' => $skills->count(),
            ],
        ]);
    }

    public function projects(string $slug)
    {
        $lang = app()->getLocale();

        $skill = Skill::with('projects')->where('slug', $slug)->first();

        if (!$skill) {
            return response()->json([
                'error' => [
                    'code' => 'SKILL_NOT_FOUND',
                    'message' => 'Skill not found',
                ],
            ], 404);
        }

        return response()->json([
            'data' => [
                'skill' => [
                    'id' => $skill->id,
                    'slug' => $skill->slug,
                    'name' => $skill->getTranslated('name_key'),
                    'description' => $skill->getTranslated('description_key'),
                    'level' => $skill->getCurrentLevel(),
                    'max_level' => $skill->max_level,
                ],
                'projects' => $skill->projects->map(function ($project) {
                    return [
                        'id' => $project->id,
                        'slug' => $project->slug,
                        'title' => $project->getTranslated('title_key'),
                        'short_description' => $project->getTranslated('short_description_key'),
                        'image' => $project->image,
                        'date_completed' => $project->date_completed?->format('Y-m-d'),
                        'level_before' => $project->pivot->level_before,
                        'level_after' => $project->pivot->level_after,
                        'level_description' => $project->pivot->level_description_key
                            ? $project->getTranslated($project->pivot->level_description_key)
                            : null,
                    ];
                }),
            ],
            'meta' => ['lang' => $lang],
        ]);
    }

    private function getCategoryLabel(string $category, string $lang): string
    {
        $labels = [
            'frontend' => ['fr' => 'Frontend', 'en' => 'Frontend'],
            'backend' => ['fr' => 'Backend', 'en' => 'Backend'],
            'tools' => ['fr' => 'Outils', 'en' => 'Tools'],
            'soft_skills' => ['fr' => 'Soft Skills', 'en' => 'Soft Skills'],
        ];

        return $labels[strtolower($category)][$lang] ?? ucfirst($category);
    }
}