<?php

if (!function_exists('generate_tree')) {
    function generate_tree(
        array $flatArray,
        int $parentId = 0,
        array $existsArr = []
    ): array {
        $tree = [];
        foreach ($flatArray as $item) {
            if ($item['parent_id'] === $parentId) {
                $node = $item;
                if ($existsArr) {
                    $node['is_show'] = in_array($item['id'], $existsArr) ? 1
                        : 0;
                }
                $node['children'] = generate_tree(
                    $flatArray,
                    $item['id'],
                    $existsArr
                );
                $tree[] = $node;
            }
        }
        return $tree;
    }
}

if (!function_exists('get_datetime')) {
    function get_datetime(string $type = 'datetime', int $times = 0): string
    {
        if (!$times) {
            $times = time();
        }
        $format = match ($type) {
            'date' => 'Y-m-d',
            'date_' => 'Y_m_d',
            'datetime' => 'Y-m-d H:i:s',
            'date_time' => 'Y-m-d H:i'
        };
        return date($format, $times);
    }
}

if (!function_exists('get_select_data')) {
    function get_select_data(
        array $data = [],
        bool $is_all = false,
        string $str1 = 'label',
        string $str2 = 'value'
    ): array {
        $newData = [];
        if ($is_all) {
            $newData[] = [$str1 => __('admin.all'), $str2 => ''];
        }
        foreach ($data as $key => $value) {
            $newData[] = [
                $str1 => $value,
                $str2 => $key
            ];
        }
        return $newData;
    }
}

if (!function_exists('get_ratio')) {
    function get_ratio($max, $min, $is_unit = true): string
    {
        $ratio = 0;
        if ($max > 0 && $min > 0) {
            $ratio = round(($min / $max) * 100, 2);
        }
        if ($is_unit) {
            $ratio .= '%';
        }
        return $ratio;
    }
}

if (!function_exists('get_time_difference')) {
    function get_time_difference(string $targetTime): array
    {
        try {
            $target = new DateTime($targetTime);
            $now = new DateTime();

            // 计算差值
            $interval = $now->diff($target);

            $totalDays = $interval->days;
            $hours = $interval->h;
            $minutes = $interval->i;
            $seconds = $interval->s;

            // 判断是过去还是未来
            $isFuture = $now < $target;

            return [
                'days' => $totalDays,
                'hours' => $hours,
                'minutes' => $minutes,
                'seconds' => $seconds,
                'is_future' => $isFuture,
                'formatted' => sprintf(
                    "%s%d天 %02d时 %02d分 %02d秒",
                    $isFuture ? '' : '-',
                    $totalDays,
                    $hours,
                    $minutes,
                    $seconds
                )
            ];
        } catch (Exception $e) {
            return [
                'error' => '时间格式错误: ' . $e->getMessage()
            ];
        }
    }
}

if (!function_exists('get_image_url')) {
    function get_image_url($image_url): string
    {
        return $image_url ? env('APP_URL') . $image_url : '';
    }
}

if (!function_exists('set_space_underline')) {
    function set_space_underline($str): string
    {
        return str_replace(' ', '_', $str);
    }
}

// 返回年月所有天
if (!function_exists('get_year_month_days')) {
    function get_year_month_days($year_month): array
    {
        $year_month_times = strtotime($year_month);
        if (!$year_month_times) {
            return [];
        }
        $monthTimes = strtotime('+1 month', $year_month_times);
        $monthEndDay = date('d', strtotime('-1 day', $monthTimes));
        $dayArr = [];
        for ($i = 1; $i <= $monthEndDay; $i++) {
            $dayArr[] = strlen($i) > 1 ? $i : '0' . $i;
        }
        return $dayArr;
    }
}