<?php

namespace App\Controllers;

use App\Models\Config;
use App\Models\Personality;

class ConfigController
{
    public static function getConfig(): void
    {
        $configRow = Config::getByKey('providers');
        $providers = $configRow ? json_decode($configRow['config_value'], true) : [];
        echo json_encode(['success' => true, 'data' => ['providers' => $providers]]);
    }

    public static function updateConfig(): void
    {
        $input = json_decode(file_get_contents('php://input'), true);
        $providers = $input['providers'] ?? [];

        if (!is_array($providers)) {
            http_response_code(400);
            echo json_encode(['success' => false, 'message' => 'providers 必须是数组']);
            return;
        }

        Config::setByKey('providers', json_encode($providers, JSON_UNESCAPED_UNICODE));
        echo json_encode(['success' => true, 'message' => '配置更新成功']);
    }

    public static function listPersonalities(): void
    {
        $personalities = Personality::findAll();
        echo json_encode(['success' => true, 'data' => $personalities]);
    }

    public static function createPersonality(): void
    {
        $input = json_decode(file_get_contents('php://input'), true);
        $name = $input['name'] ?? '';
        $prompt = $input['prompt'] ?? '';

        if (!$name || !$prompt) {
            http_response_code(400);
            echo json_encode(['success' => false, 'message' => '名称和提示词不能为空']);
            return;
        }

        $data = [
            'name' => $name,
            'prompt' => $prompt,
            'description' => $input['description'] ?? null,
            'icon' => $input['icon'] ?? null,
            'is_preset' => 0,
            'created_by' => $GLOBALS['auth_user']['userId']
        ];

        $personality = Personality::create($data);
        echo json_encode(['success' => true, 'data' => $personality]);
    }

    public static function updatePersonality($id): void
    {
        $personality = Personality::findById($id);
        if (!$personality) {
            http_response_code(404);
            echo json_encode(['success' => false, 'message' => '人格不存在']);
            return;
        }
        if ($personality['is_preset']) {
            http_response_code(400);
            echo json_encode(['success' => false, 'message' => '预设人格不可编辑']);
            return;
        }

        $input = json_decode(file_get_contents('php://input'), true);
        $data = array_filter([
            'name' => $input['name'] ?? null,
            'prompt' => $input['prompt'] ?? null,
            'description' => $input['description'] ?? null,
            'icon' => $input['icon'] ?? null,
        ], fn($v) => $v !== null);

        $updated = Personality::update($id, $data);
        echo json_encode(['success' => true, 'data' => $updated]);
    }

    public static function deletePersonality($id): void
    {
        $personality = Personality::findById($id);
        if (!$personality) {
            http_response_code(404);
            echo json_encode(['success' => false, 'message' => '人格不存在']);
            return;
        }
        if ($personality['is_preset']) {
            http_response_code(400);
            echo json_encode(['success' => false, 'message' => '预设人格不可删除']);
            return;
        }

        Personality::delete($id);
        echo json_encode(['success' => true, 'message' => '删除成功']);
    }
}