<?php

declare(strict_types=1);

namespace App\Http\Controllers\PromptTemplate;

use App\Http\Controllers\Controller;
use App\Http\Requests\PromptTemplate\StorePromptTemplateRequest;
use App\Http\Requests\PromptTemplate\UpdatePromptTemplateRequest;
use App\Models\PromptTemplate;
use App\Services\PromptTemplateService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\View\View;

class PromptTemplateController extends Controller
{
    /**
     * Create a new controller instance.
     */
    public function __construct(
        private readonly PromptTemplateService $promptTemplateService
    ) {}

    /**
     * Display a listing of the resource.
     */
    public function index(): View
    {
        $this->authorize('viewAny', \App\Models\PromptTemplate::class);

        $result = $this->promptTemplateService->index();
        $templates = $result['data'] ?? [];

        return view('prompt-templates.index', compact('templates'));
    }

    /**
     * Show the form for creating a new resource.
     */
    public function create(): View
    {
        $this->authorize('create', \App\Models\PromptTemplate::class);

        return view('prompt-templates.create');
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(StorePromptTemplateRequest $request): RedirectResponse
    {
        $this->authorize('create', \App\Models\PromptTemplate::class);

        $data = $request->validated();

        if (isset($data['template_data']) && is_string($data['template_data'])) {
            $data['template_data'] = json_decode($data['template_data'], true);
        }

        $this->promptTemplateService->store($data);

        return redirect()->route('prompt-templates.index')
            ->with('success', 'Template created successfully.');
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(\App\Models\PromptTemplate $promptTemplate): View
    {
        $this->authorize('update', $promptTemplate);

        return view('prompt-templates.edit', compact('promptTemplate'));
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(UpdatePromptTemplateRequest $request, \App\Models\PromptTemplate $promptTemplate): RedirectResponse
    {
        $this->authorize('update', $promptTemplate);

        $data = $request->validated();

        if (isset($data['template_data']) && is_string($data['template_data'])) {
            $data['template_data'] = json_decode($data['template_data'], true);
        }

        $this->promptTemplateService->update($promptTemplate, $data);

        return redirect()->route('prompt-templates.index')
            ->with('success', 'Template updated successfully.');
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(\App\Models\PromptTemplate $promptTemplate): RedirectResponse
    {
        $this->authorize('delete', $promptTemplate);

        $this->promptTemplateService->destroy($promptTemplate);

        return redirect()->route('prompt-templates.index')
            ->with('success', 'Template deleted successfully.');
    }

    /**
     * Get all templates as JSON for the dropdown.
     */
    public function api(): JsonResponse
    {
        $templates = PromptTemplate::where('is_public', true)
            ->orWhere('user_id', auth()->id())
            ->get(['name', 'template_data']);

        $result = [];

        foreach ($templates as $template) {
            $data = $template->template_data;
            $result[$template->name] = [
                'title' => $data['title'] ?? $template->name,
                'objective' => $data['objective'] ?? '',
                'context' => $data['context'] ?? '',
                'persona' => $data['persona'] ?? '',
                'tone' => $data['tone'] ?? '',
                'constraints' => $data['constraints'] ?? '',
                'output_format' => $data['output_format'] ?? '',
                'examples' => $data['examples'] ?? '',
                'variables' => $data['variables'] ?? '',
                'temperature' => $data['temperature'] ?? 0.7,
                'max_tokens' => $data['max_tokens'] ?? 1024,
            ];
        }

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