<?php

namespace App\Http\Controllers\Sales;

use App\Http\Controllers\Controller;
use App\Services\Sales\AiInterviewService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class AiInterviewController extends Controller
{
    public function __construct(
        private AiInterviewService $aiInterviewService
    ) {}

    /**
     * AI 인터뷰 메인 페이지
     */
    public function index(Request $request): View|\Illuminate\Http\Response
    {
        if ($request->header('HX-Request')) {
            return response('', 200)->header('HX-Redirect', route('sales.interviews.ai.index'));
        }

        return view('sales.interviews.ai-interview');
    }

    /**
     * AI 인터뷰 세션 시작
     */
    public function startSession(Request $request): JsonResponse
    {
        $validated = $request->validate([
            'project_id' => 'required|integer|exists:interview_projects,id',
            'domain' => 'required|string|max:50',
            'interviewee_name' => 'nullable|string|max:100',
            'interviewee_company' => 'nullable|string|max:100',
        ]);

        try {
            $result = $this->aiInterviewService->startAiSession(
                $validated['project_id'],
                $validated['domain'],
                $validated['interviewee_name'] ?? null,
                $validated['interviewee_company'] ?? null,
            );

            return response()->json(['success' => true, 'data' => $result]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * AI에게 메시지 전송
     */
    public function sendMessage(Request $request): JsonResponse
    {
        $validated = $request->validate([
            'session_id' => 'required|integer|exists:interview_sessions,id',
            'message' => 'required|string|max:10000',
            'domain' => 'nullable|string|max:50',
        ]);

        try {
            $result = $this->aiInterviewService->sendMessage(
                $validated['session_id'],
                $validated['message'],
                $validated['domain'] ?? null,
            );

            return response()->json(['success' => true, 'data' => $result]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 대화 히스토리 조회
     */
    public function getHistory(int $sessionId): JsonResponse
    {
        try {
            $history = $this->aiInterviewService->getConversationHistory($sessionId);

            return response()->json(['success' => true, 'data' => $history]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 진행률 분석
     */
    public function analyzeProgress(int $sessionId): JsonResponse
    {
        try {
            $progress = $this->aiInterviewService->analyzeProgress($sessionId);

            return response()->json(['success' => true, 'data' => $progress]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 지식 자동 추출
     */
    public function extractKnowledge(int $sessionId): JsonResponse
    {
        try {
            $knowledge = $this->aiInterviewService->extractKnowledge($sessionId);

            return response()->json(['success' => true, 'data' => $knowledge]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 음성 파일 업로드 + STT 변환
     */
    public function uploadVoice(Request $request): JsonResponse
    {
        $request->validate([
            'session_id' => 'required|integer|exists:interview_sessions,id',
            'audio' => 'required|file|mimes:webm,wav,mp3,ogg,m4a|max:51200',
        ]);

        try {
            $result = $this->aiInterviewService->processVoiceUpload(
                $request->input('session_id'),
                $request->file('audio'),
            );

            return response()->json(['success' => true, 'data' => $result]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 파일 업로드 + AI 분석
     */
    public function uploadFile(Request $request): JsonResponse
    {
        $request->validate([
            'project_id' => 'required|integer|exists:interview_projects,id',
            'session_id' => 'nullable|integer|exists:interview_sessions,id',
            'file' => 'required|file|max:51200',
            'file_type' => 'nullable|string|in:excel_template,pdf_quote,sample_bom,price_list,photo,other',
        ]);

        try {
            $result = $this->aiInterviewService->processFileUpload(
                $request->input('project_id'),
                $request->file('file'),
                $request->input('file_type', 'other'),
                $request->input('session_id'),
            );

            return response()->json(['success' => true, 'data' => $result]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 프로젝트별 도메인 목록 + 진행 현황
     */
    public function getDomains(int $projectId): JsonResponse
    {
        try {
            $domains = $this->aiInterviewService->getProjectDomains($projectId);

            return response()->json(['success' => true, 'data' => $domains]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }

    /**
     * 프로젝트 목록 조회
     */
    public function getProjects(): JsonResponse
    {
        try {
            $projects = $this->aiInterviewService->getProjects();

            return response()->json(['success' => true, 'data' => $projects]);
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 500);
        }
    }
}