<?php

namespace App\Http\Controllers;

use App\Models\Candidate;
use App\Services\AIAnalysisService;
use Illuminate\Http\Request;
use Carbon\Carbon;

class AIAnalysisController extends Controller
{
    protected $aiService;

    public function __construct(AIAnalysisService $aiService)
    {
        $this->aiService = $aiService;
    }

    public function analyze(Request $request, Candidate $candidate)
    {
        if (!auth()->user()->isAdmin()) {
            abort(403);
        }

        // Restriction: Une analyse tous les 7 jours maximum par candidat
        // Tout admin peut outrepasser cette restriction s'il utilise l'option 'force'
        $shouldCheckRestriction = !$request->input('force', false);

        if ($shouldCheckRestriction && $candidate->ai_analysis && isset($candidate->ai_analysis['analyzed_at'])) {
            $lastAnalysis = Carbon::parse($candidate->ai_analysis['analyzed_at']);
            if ($lastAnalysis->diffInDays(now()) < 7) {
                return response()->json([
                    'error' => "Une analyse a déjà été effectuée il y a moins de 7 jours. Merci de patienter avant de relancer l'IA."
                ], 422);
            }
        }

        try {
            $analysis = $this->aiService->analyze($candidate, $request->provider);
            
            // Persist the analysis on the candidate profile
            $candidate->update([
                'ai_analysis' => $analysis
            ]);
            
            return response()->json($analysis);
        } catch (\Exception $e) {
            return response()->json(['error' => $e->getMessage()], 500);
        }
    }
}