<?php

namespace Dcat\Admin\Support;

use Dcat\Admin\Grid;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Contracts\Support\Htmlable;
use Illuminate\Contracts\Support\Jsonable;
use Illuminate\Contracts\Support\Renderable;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Artisan;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Str;

class Helper
{
    /**
     * @var array
     */
    public static $fileTypes = [
        'image'      => 'png|jpg|jpeg|tmp|gif',
        'word'       => 'doc|docx',
        'excel'      => 'xls|xlsx|csv',
        'powerpoint' => 'ppt|pptx',
        'pdf'        => 'pdf',
        'code'       => 'php|js|java|python|ruby|go|c|cpp|sql|m|h|json|html|aspx',
        'archive'    => 'zip|tar\.gz|rar|rpm',
        'txt'        => 'txt|pac|log|md',
        'audio'      => 'mp3|wav|flac|3pg|aa|aac|ape|au|m4a|mpc|ogg',
        'video'      => 'mkv|rmvb|flv|mp4|avi|wmv|rm|asf|mpeg',
    ];

    /**
     * 更新扩展配置.
     *
     * @param array $config
     *
     * @return bool
     */
    public static function updateExtensionConfig(array $config)
    {
        $files = app('files');
        $result = (bool) $files->put(config_path('admin-extensions.php'), self::exportArrayPhp($config));

        if ($result && is_file(base_path('bootstrap/cache/config.php'))) {
            Artisan::call('config:cache');
        }

        config(['admin-extensions' => $config]);

        return $result;
    }

    /**
     * 把给定的值转化为数组.
     *
     * @param $value
     * @param bool $filter
     *
     * @return array
     */
    public static function array($value, bool $filter = true): array
    {
        if (! $value) {
            return [];
        }

        if ($value instanceof \Closure) {
            $value = $value();
        }

        if (is_array($value)) {
        } elseif ($value instanceof Jsonable) {
            $value = json_decode($value->toJson(), true);
        } elseif ($value instanceof Arrayable) {
            $value = $value->toArray();
        } elseif (is_string($value)) {
            $array = null;

            try {
                $array = json_decode($value, true);
            } catch (\Throwable $e) {
            }

            $value = is_array($array) ? $array : explode(',', $value);
        } else {
            $value = (array) $value;
        }

        return $filter ? array_filter($value, function ($v) {
            return $v !== '' && $v !== null;
        }) : $value;
    }

    /**
     * 把给定的值转化为字符串.
     *
     * @param string|Grid|\Closure|Renderable|Htmlable  $value
     * @param array                                     $params
     * @param object                                    $newThis
     *
     * @return string
     */
    public static function render($value, $params = [], $newThis = null): string
    {
        if (is_string($value)) {
            return $value;
        }

        if ($value instanceof Grid) {
            return (string) $value->render();
        }

        if ($value instanceof \Closure) {
            $newThis && $value = $value->bindTo($newThis);

            $value = $value(...(array) $params);
        }

        if ($value instanceof Renderable) {
            return (string) $value->render();
        }

        if ($value instanceof Htmlable) {
            return (string) $value->toHtml();
        }

        return (string) $value;
    }

    /**
     * @param array $attributes
     *
     * @return string
     */
    public static function buildHtmlAttributes($attributes)
    {
        $html = '';

        foreach ((array) $attributes as $key => &$value) {
            if (is_array($value)) {
                $value = implode(' ', $value);
            }

            if (is_numeric($key)) {
                $key = $value;
            }

            $element = '';

            if ($value !== null) {
                $element = $key.'="'.htmlentities($value, ENT_QUOTES, 'UTF-8').'"';
            }

            $html .= $element;
        }

        return $html;
    }

    /**
     * @param string $url
     * @param array  $query
     *
     * @return string
     */
    public static function urlWithQuery(?string $url, array $query = [])
    {
        if (! $url || ! $query) {
            return $url;
        }

        $array = explode('?', $url);

        $url = $array[0];

        parse_str($array[1] ?? '', $originalQuery);

        return $url.'?'.http_build_query(array_merge($originalQuery, $query));
    }

    /**
     * @param string                 $url
     * @param string|array|Arrayable $keys
     *
     * @return string
     */
    public static function urlWithoutQuery($url, $keys)
    {
        if (! Str::contains($url, '?') || ! $keys) {
            return $url;
        }

        if ($keys instanceof Arrayable) {
            $keys = $keys->toArray();
        }

        $keys = (array) $keys;

        $urlInfo = parse_url($url);

        parse_str($urlInfo['query'], $query);

        Arr::forget($query, $keys);

        $baseUrl = explode('?', $url)[0];

        return $query
            ? $baseUrl.'?'.http_build_query($query)
            : $baseUrl;
    }

    /**
     * @param Arrayable|array|string $keys
     *
     * @return string
     */
    public static function fullUrlWithoutQuery($keys)
    {
        return static::urlWithoutQuery(request()->fullUrl(), $keys);
    }

    /**
     * @param string       $url
     * @param string|array $keys
     *
     * @return bool
     */
    public static function urlHasQuery(string $url, $keys)
    {
        $value = explode('?', $url);

        if (empty($value[1])) {
            return false;
        }

        parse_str($value[1], $query);

        foreach ((array) $keys as $key) {
            if (Arr::has($query, $key)) {
                return true;
            }
        }

        return false;
    }

    /**
     * 匹配请求路径.
     *
     * @example
     *      Helper::matchRequestPath(admin_base_path('auth/user'))
     *      Helper::matchRequestPath(admin_base_path('auth/user*'))
     *      Helper::matchRequestPath(admin_base_path('auth/user/* /edit'))
     *      Helper::matchRequestPath('GET,POST:auth/user')
     *
     * @param string      $path
     * @param null|string $current
     *
     * @return bool
     */
    public static function matchRequestPath($path, ?string $current = null)
    {
        $request = request();
        $current = $current ?: $request->decodedPath();

        if (Str::contains($path, ':')) {
            [$methods, $path] = explode(':', $path);

            $methods = array_map('strtoupper', explode(',', $methods));

            if (! empty($methods) && ! in_array($request->method(), $methods)) {
                return false;
            }
        }

        // 判断路由名称
        if ($request->routeIs($path)) {
            return true;
        }

        if (! Str::contains($path, '*')) {
            return $path === $current;
        }

        $path = str_replace(['*', '/'], ['([0-9a-z-_,])*', "\/"], $path);

        return preg_match("/$path/i", $current);
    }

    /**
     * 生成层级数据.
     *
     * @param array       $nodes
     * @param int         $parentId
     * @param string|null $primaryKeyName
     * @param string|null $parentKeyName
     * @param string|null $childrenKeyName
     *
     * @return array
     */
    public static function buildNestedArray(
        $nodes = [],
        $parentId = 0,
        ?string $primaryKeyName = null,
        ?string $parentKeyName = null,
        ?string $childrenKeyName = null
    ) {
        $branch = [];
        $primaryKeyName = $primaryKeyName ?: 'id';
        $parentKeyName = $parentKeyName ?: 'parent_id';
        $childrenKeyName = $childrenKeyName ?: 'children';

        $parentId = is_numeric($parentId) ? (int) $parentId : $parentId;

        foreach ($nodes as $node) {
            $pk = Arr::get($node, $parentKeyName);
            $pk = is_numeric($pk) ? (int) $pk : $pk;

            if ($pk === $parentId) {
                $children = static::buildNestedArray(
                    $nodes,
                    Arr::get($node, $primaryKeyName),
                    $primaryKeyName,
                    $parentKeyName,
                    $childrenKeyName
                );

                if ($children) {
                    $node[$childrenKeyName] = $children;
                }
                $branch[] = $node;
            }
        }

        return $branch;
    }

    /**
     * @param string $name
     * @param string $symbol
     *
     * @return mixed
     */
    public static function slug(string $name, string $symbol = '-')
    {
        $text = preg_replace_callback('/([A-Z])/', function (&$text) use ($symbol) {
            return $symbol.strtolower($text[1]);
        }, $name);

        return str_replace('_', $symbol, ltrim($text, $symbol));
    }

    /**
     * @param array $array
     * @param int   $level
     *
     * @return string
     */
    public static function exportArray(array &$array, $level = 1)
    {
        $start = '[';
        $end = ']';

        $txt = "$start\n";

        foreach ($array as $k => &$v) {
            if (is_array($v)) {
                $pre = is_string($k) ? "'$k' => " : "$k => ";

                $txt .= str_repeat(' ', $level * 4).$pre.static::exportArray($v, $level + 1).",\n";

                continue;
            }
            $t = $v;

            if ($v === true) {
                $t = 'true';
            } elseif ($v === false) {
                $t = 'false';
            } elseif ($v === null) {
                $t = 'null';
            } elseif (is_string($v)) {
                $v = str_replace("'", "\\'", $v);
                $t = "'$v'";
            }

            $pre = is_string($k) ? "'$k' => " : "$k => ";

            $txt .= str_repeat(' ', $level * 4)."{$pre}{$t},\n";
        }

        return $txt.str_repeat(' ', ($level - 1) * 4).$end;
    }

    /**
     * @param array $array
     *
     * @return string
     */
    public static function exportArrayPhp(array $array)
    {
        return "<?php \nreturn ".static::exportArray($array).";\n";
    }

    /**
     * 删除数组中的元素.
     *
     * @param array $array
     * @param mixed $value
     */
    public static function deleteByValue(&$array, $value)
    {
        $value = (array) $value;

        foreach ($array as $index => $item) {
            if (in_array($item, $value)) {
                unset($array[$index]);
            }
        }
    }

    /**
     * 颜色转亮.
     *
     * @param string $color
     * @param int    $amt
     *
     * @return string
     */
    public static function colorLighten(string $color, int $amt)
    {
        if (! $amt) {
            return $color;
        }

        $hasPrefix = false;

        if (strpos($color, '#') === 0) {
            $color = mb_substr($color, 1);

            $hasPrefix = true;
        }

        [$red, $blue, $green] = static::colorToRBG($color, $amt);

        return ($hasPrefix ? '#' : '').dechex($green + ($blue << 8) + ($red << 16));
    }

    /**
     * 颜色转暗.
     *
     * @param string $color
     * @param int    $amt
     *
     * @return string
     */
    public static function colorDarken(string $color, int $amt)
    {
        return static::colorLighten($color, -$amt);
    }

    /**
     * 颜色透明度.
     *
     * @param string       $color
     * @param float|string $alpha
     *
     * @return string
     */
    public static function colorAlpha(string $color, $alpha)
    {
        if ($alpha >= 1) {
            return $color;
        }

        if (strpos($color, '#') === 0) {
            $color = mb_substr($color, 1);
        }

        [$red, $blue, $green] = static::colorToRBG($color);

        return "rgba($red, $blue, $green, $alpha)";
    }

    /**
     * @param string $color
     * @param int    $amt
     *
     * @return array
     */
    public static function colorToRBG(string $color, int $amt = 0)
    {
        $format = function ($value) {
            if ($value > 255) {
                return 255;
            }
            if ($value < 0) {
                return 0;
            }

            return $value;
        };

        $num = hexdec($color);

        $red = $format(($num >> 16) + $amt);
        $blue = $format((($num >> 8) & 0x00FF) + $amt);
        $green = $format(($num & 0x0000FF) + $amt);

        return [$red, $blue, $green];
    }

    /**
     * 验证扩展包名称.
     *
     * @param string $name
     *
     * @return int
     */
    public static function validateExtensionName($name)
    {
        return preg_match('/^[\w\-_]+\/[\w\-_]+$/', $name);
    }

    /**
     * Get file icon.
     *
     * @param string $file
     *
     * @return string
     */
    public static function getFileIcon($file = '')
    {
        $extension = File::extension($file);

        foreach (static::$fileTypes as $type => $regex) {
            if (preg_match("/^($regex)$/i", $extension) !== 0) {
                return "fa fa-file-{$type}-o";
            }
        }

        return 'fa fa-file-o';
    }

    /**
     * 判断是否是ajax请求.
     *
     * @param Request $request
     *
     * @return bool
     */
    public static function isAjaxRequest(?Request $request = null)
    {
        /* @var Request $request */
        $request = $request ?: request();

        return $request->ajax() && ! $request->pjax();
    }
}