<?php

namespace Controller;

use Framework\Controller;
use UseCases\Config\ManageConfigUseCase;

class ConfigController extends Controller
{
    private ManageConfigUseCase $configUseCase;

    private const TYPES = ['author_profile', 'structure', 'organization', 'contract', 'rule', 'system_prompt'];
    private const TYPE_LABELS = [
        'author_profile' => 'Autorenprofil',
        'structure' => 'Struktur',
        'organization' => 'Organisation',
        'contract' => 'Contract',
        'rule' => 'Regel',
        'system_prompt' => 'System-Prompt',
    ];

    public function __construct(?ManageConfigUseCase $configUseCase = null)
    {
        $this->configUseCase = $configUseCase ?? new ManageConfigUseCase();
    }

    public function index(): void
    {
        $typeFilter = $this->getString('type');
        $statusFilter = $this->getString('status');

        $this->view('config.index', [
            'title' => 'Content-Konfiguration',
            'configs' => array_map(fn ($dto) => (array) $dto, $this->configUseCase->getAll($typeFilter, $statusFilter)),
            'stats' => $this->configUseCase->getStatistics(),
            'types' => self::TYPES,
            'typeLabels' => self::TYPE_LABELS,
            'currentType' => $typeFilter,
            'currentStatus' => $statusFilter,
        ]);
    }

    public function configNew(): void
    {
        $this->view('config.form', [
            'title' => 'Neue Konfiguration',
            'config' => null,
            'types' => self::TYPES,
            'typeLabels' => self::TYPE_LABELS,
            'parents' => $this->configUseCase->getParentOptions(),
            'isEdit' => false,
        ]);
    }

    public function store(): void
    {
        $this->requireCsrf();

        $result = $this->configUseCase->create(
            type: $_POST['type'] ?? '',
            name: $_POST['name'] ?? '',
            slug: $_POST['slug'] ?? '',
            description: $_POST['description'] ?? null,
            content: $_POST['content'] ?? '{}',
            version: $_POST['version'] ?? '1.0',
            status: $_POST['status'] ?? 'draft',
            parentId: !empty($_POST['parent_id']) ? (int) $_POST['parent_id'] : null
        );

        if (!$result->success) {
            $_SESSION['error'] = $result->message;
            header('Location: /config/new');
            exit;
        }

        $_SESSION['success'] = $result->message;
        header('Location: /config/' . $result->id);
        exit;
    }

    public function show(string $id): void
    {
        $config = $this->configUseCase->getById((int) $id);
        if ($config === null) {
            $this->notFound('Konfiguration nicht gefunden');
        }

        $this->view('config.show', [
            'title' => $config->name,
            'config' => (array) $config,
            'children' => $this->configUseCase->getChildren((int) $id),
            'history' => $this->configUseCase->getHistory((int) $id),
            'typeLabels' => self::TYPE_LABELS,
        ]);
    }

    public function edit(string $id): void
    {
        $config = $this->configUseCase->getById((int) $id);
        if ($config === null) {
            $this->notFound('Konfiguration nicht gefunden');
        }

        $this->view('config.form', [
            'title' => 'Bearbeiten: ' . $config->name,
            'config' => (array) $config,
            'types' => self::TYPES,
            'typeLabels' => self::TYPE_LABELS,
            'parents' => $this->configUseCase->getParentOptions((int) $id),
            'isEdit' => true,
        ]);
    }

    public function update(string $id): void
    {
        $this->requireCsrf();

        $result = $this->configUseCase->update(
            id: (int) $id,
            name: $_POST['name'] ?? '',
            slug: $_POST['slug'] ?? '',
            description: $_POST['description'] ?? null,
            content: $_POST['content'] ?? '{}',
            newVersion: $_POST['new_version'] ?? '',
            changeDescription: $_POST['change_description'] ?? '',
            status: $_POST['status'] ?? 'draft',
            parentId: !empty($_POST['parent_id']) ? (int) $_POST['parent_id'] : null
        );

        if (!$result->success) {
            $_SESSION['error'] = $result->message;
            header('Location: /config/' . $id . '/edit');
            exit;
        }

        $_SESSION['success'] = $result->message;
        header('Location: /config/' . $id);
        exit;
    }

    public function delete(string $id): void
    {
        $this->requireCsrf();

        $result = $this->configUseCase->delete((int) $id);

        if (!$result->success) {
            $_SESSION['error'] = $result->message;
            header('Location: /config/' . $id);
            exit;
        }

        $_SESSION['success'] = $result->message;
        header('Location: /config');
        exit;
    }
}