<?php

namespace Kingbes\PebView;

// pebview 扩展已加载时，类已在 C 层注册，跳过 PHP FFI 定义
if (extension_loaded('pebview')) {
    return;
}

use function Kingbes\PebView\trayMenuList;

/**
 * Window 窗口类
 */
class Window extends Base
{
    /** @var \FFI\CData 窗口指针 */
    private mixed $pv;

    /** @var \FFI\CData 托盘指针 */
    public mixed $tray;

    public function __construct(bool $debug = true)
    {
        $this->pv = self::ffi()["PebView"]->webview_create($debug, null);
    }

    /**
     * 销毁窗口
     *
     * @return void
     * @example $win->destroy(); 必须在`run()`后面
     */
    public function destroy(): void
    {
        self::ffi()["PebView"]->webview_destroy($this->pv);
    }

    /**
     * 运行窗口
     *
     * @return self
     * @example $win->run(); 必须在`setHtml()`或者`navigate()`后面
     */
    public function run(): self
    {
        self::ffi()["PebView"]->webview_run($this->pv);
        return $this;
    }

    /**
     * 终止窗口
     *
     * @return void
     * @example $win->terminate(); 
     */
    public function terminate(): void
    {
        $this->trayRemove();
        self::ffi()["PebView"]->webview_terminate($this->pv);
        // 判断是否是webman框架
        /* if (function_exists("runtime_path") && strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
            // 定义状态文件路径
            $status_file = runtime_path() . DIRECTORY_SEPARATOR . '/windows/status_file';
            // 写入状态文件
            file_put_contents($status_file, '0');
        } */
    }

    /**
     * 分发回调函数
     *
     * @param callable $callable 回调函数
     * @return void
     * @example $win->dispatch(function ($win, $arg) {
     *     // 这里可以写你要执行的代码
     * });
     */
    public function dispatch(callable $callable): self
    {
        $win = $this;
        $c_callable = function ($ptr, $arg) use ($callable, $win) {
            $callable($win, $arg);
        };
        self::ffi()["PebView"]->webview_dispatch($this->pv, $c_callable, null);
        return $this;
    }

    /**
     * 设置窗口图标
     *
     * @param string $icon 图标路径
     * @return self
     * @example $win->setIcon(图标路径); - windows 要求ico格式 - Linux 要求png格式 - MacOs ico
     */
    public function setIcon(string $icon): self
    {
        $ptr = self::ffi()["PebView"]->webview_get_window($this->pv);
        self::ffi()["PebView"]->set_icon($ptr, $icon);
        return $this;
    }

    /**
     * 设置窗口标题
     *
     * @param string $title
     * @return self
     * @example $win->setTitle(窗口标题名称);
     */
    public function setTitle(string $title): self
    {
        self::ffi()["PebView"]->webview_set_title($this->pv, $title);
        return $this;
    }

    /**
     * 设置窗口大小
     *
     * @param int $width 窗口宽度
     * @param int $height 窗口高度
     * @param WindowHint $hint 窗口提示
     * @return self
     * @example $win->setSize(窗口宽度, 窗口高度, 窗口提示);
     */
    public function setSize(int $width, int $height, WindowHint $hint = WindowHint::None): self
    {
        self::ffi()["PebView"]->webview_set_size($this->pv, $width, $height, $hint->value);
        return $this;
    }

    /**
     * 初始化窗口
     * 会在window.onload之前加载js代码
     *
     * @param string $js
     * @return self
     * @example $win->init(js代码);
     */
    public function init(string $js): self
    {
        self::ffi()["PebView"]->webview_init($this->pv, $js);
        return $this;
    }

    /**
     * 执行js代码
     *
     * @param string $js
     * @return self
     * @example $win->eval(js代码);
     */
    public function eval(string $js): self
    {
        self::ffi()["PebView"]->webview_eval($this->pv, $js);
        return $this;
    }

    /**
     * 设置窗口html内容
     *
     * @param string $html html内容
     * @return self
     * @example $win->setHtml(html内容);
     */
    public function setHtml(string $html): self
    {
        self::ffi()["PebView"]->webview_set_html($this->pv, $html);
        return $this;
    }

    /**
     * 导航窗口到指定url
     *
     * @param string $url url地址
     * @return self
     * @example $win->navigate(url地址);
     */
    public function navigate(string $url): self
    {
        self::ffi()["PebView"]->webview_navigate($this->pv, $url);
        return $this;
    }

    /**
     * 绑定js函数到窗口
     *
     * @param string $name js函数名称
     * @param callable $callable 函数回调
     * @return self
     * @example $win->bind(js函数名称, function (...$params) {
     *     // 这里可以写你要执行的代码
     *     return "hello"; // 如需要返回数据给js则可用 return
     * });
     */
    public function bind(string $name, callable $callable): self
    {
        $pv = $this->pv;
        $c_callable = function (string $id, string $req, mixed $arg) use ($callable, $pv) {
            $params = json_decode($req, true);
            $value = $callable(...$params);
            if ($value) {
                if ((is_object($value) || is_array($value))) {
                    self::ffi()["PebView"]->webview_return($pv, $id, 0, json_encode($value, 320));
                } elseif (is_string($value)) {
                    self::ffi()["PebView"]->webview_return($pv, $id, 0, '"' . $value . '"');
                } else if (is_bool($value)) {
                    self::ffi()["PebView"]->webview_return($pv, $id, 0, $value ? 'true' : 'false');
                } else {
                    self::ffi()["PebView"]->webview_return($pv, $id, 0, "{$value}");
                }
            }
        };
        self::ffi()["PebView"]->webview_bind($this->pv, $name, $c_callable, null);
        return $this;
    }

    /**
     * 解绑js函数
     *
     * @param string $name js函数名称
     * @return self
     * @example $win->unBind(js函数名称);
     */
    public function unBind(string $name): self
    {
        self::ffi()["PebView"]->webview_unbind($this->pv, $name);
        return $this;
    }

    /**
     * 设置窗口关闭事件
     *
     * @param callable $callable<CData: bool> 关闭事件回调 返回 true 关闭，false 不关闭
     * @return self
     * @example $win->setCloseCallback(function ($win) {
     *     // 这里可以写你要执行的代码
     *     return false; // 返回 true 关闭窗口，false 不关闭
     * });
     */
    public function setCloseCallback(callable $callable): self
    {
        $win = $this;
        $c_callable = function () use ($callable, $win) {
            $cb =  $callable($win);
            return $cb ? 1 : 0;
        };
        self::ffi()["PebView"]->webview_set_close_callback($this->pv, $c_callable);
        return $this;
    }

    /**
     * 窗口显示
     *
     * @return self
     * @example $win->show();
     */
    public function show(): self
    {
        self::ffi()["PebView"]->window_show(self::ffi()["PebView"]->webview_get_window($this->pv));
        return $this;
    }

    /**
     * 窗口隐藏
     *
     * @return self
     * @example $win->hide();
     */
    public function hide(): self
    {
        self::ffi()["PebView"]->window_hide(self::ffi()["PebView"]->webview_get_window($this->pv));
        return $this;
    }

    /**
     * 创建托盘
     *
     * @param string $icon 托盘图标
     * @return self
     * @example $win->tray(托盘图标); - windows 要求ico格式 - Linux 要求png格式 - MacOs ico
     */
    public function tray(string $icon): self
    {
        $this->tray = self::ffi()["PebView"]->window_tray(self::ffi()["PebView"]->webview_get_window($this->pv), $icon);
        return $this;
    }

    /**
     * 托盘菜单
     *
     * @param array<array{text: string, disabled: int, cb: callable}> $menu 菜单数组
     * @return self
     * @example $win->trayMenu([
     *     [
     *         "text" => "打开窗口",
     *         "cb" => function ($win){
     *             $win->show();
     *         }
     *     ],
     *     [
     *         "text" => "关闭窗口",
     *         "cb" => function ($win){
     *             $win->terminate();
     *         }
     *     ]
     * ]); // disabled 为1表示禁用0表示不禁用,默认0
     */
    public function trayMenu(array $menu): self
    {
        trayMenuList(self::ffi()["PebView"], $this, $menu);
        return $this;
    }

    /**
     * 移除托盘菜单
     *
     * @return void
     */
    private function trayRemove(): void
    {
        self::ffi()["PebView"]->window_tray_remove($this->tray);
    }
}