<?php

declare(strict_types=1);

use app\common\service\qywx\MediaChannelService;
use think\facade\Db;

require dirname(__DIR__) . '/vendor/autoload.php';

$mergeMethod = new ReflectionMethod(MediaChannelService::class, 'mergeConfiguredChannelsWithTags');
$mergeMethod->setAccessible(true);
$scanUpdateFields = (new ReflectionClass(MediaChannelService::class))
    ->getReflectionConstant('SCAN_DUPLICATE_UPDATE_FIELDS')
    ?->getValue();
if (!is_array($scanUpdateFields)
    || array_intersect(['channel_name', 'source_tag_name', 'status'], $scanUpdateFields) !== []) {
    throw new RuntimeException('Channel scan would overwrite rename aliases, manual labels, or disabled status');
}

$configuredRows = [
    [
        'id' => 1,
        'channel_code' => 'stable-a',
        'channel_name' => 'Old tag name',
        'source_tag_id' => 'tag-a',
        'source_tag_name' => 'Old tag name',
        'source_group_name' => 'Old group',
        'status' => 1,
    ],
    [
        'id' => 2,
        'channel_code' => 'manual-name',
        'channel_name' => 'Manual campaign label',
        'source_tag_id' => 'tag-manual',
        'source_tag_name' => 'Old manual tag',
        'source_group_name' => 'Old group',
        'status' => 1,
    ],
    [
        'id' => 3,
        'channel_code' => 'disabled-tag',
        'channel_name' => 'Disabled tag',
        'source_tag_id' => 'tag-disabled',
        'source_tag_name' => 'Disabled tag',
        'source_group_name' => 'Group',
        'status' => 0,
    ],
    [
        'id' => 4,
        'channel_code' => 'legacy-name-only',
        'channel_name' => 'Legacy name-only channel',
        'source_tag_id' => '',
        'source_tag_name' => 'Legacy name-only channel',
        'source_group_name' => 'Legacy',
        'status' => 1,
    ],
];

$tagRows = [
    [
        'source_tag_id' => 'tag-a',
        'source_tag_name' => 'Renamed tag',
        'source_group_name' => 'New group',
    ],
    [
        'source_tag_id' => 'tag-manual',
        'source_tag_name' => 'Renamed manual tag',
        'source_group_name' => 'New group',
    ],
    [
        'source_tag_id' => 'tag-disabled',
        'source_tag_name' => 'Disabled tag returned by relation table',
        'source_group_name' => 'Group',
    ],
    [
        'source_tag_id' => 'tag-new',
        'source_tag_name' => 'Newly discovered tag',
        'source_group_name' => 'New group',
    ],
];

/** @var array<int, array<string, mixed>> $mergedRows */
$mergedRows = $mergeMethod->invoke(null, $configuredRows, $tagRows);
$byCode = [];
foreach ($mergedRows as $row) {
    $byCode[(string) ($row['channel_code'] ?? '')] = $row;
}

$renamed = $byCode['stable-a'] ?? null;
if (!is_array($renamed)
    || ($renamed['channel_name'] ?? '') !== 'Renamed tag'
    || ($renamed['source_tag_name'] ?? '') !== 'Renamed tag'
    || ($renamed['source_group_name'] ?? '') !== 'New group'
    || ($renamed['legacy_channel_name'] ?? '') !== 'Old tag name'
    || ($renamed['legacy_source_tag_name'] ?? '') !== 'Old tag name') {
    throw new RuntimeException('Automatic channel name was not refreshed with backward-compatible aliases');
}

$manual = $byCode['manual-name'] ?? null;
if (!is_array($manual)
    || ($manual['channel_name'] ?? '') !== 'Manual campaign label'
    || ($manual['source_tag_name'] ?? '') !== 'Renamed manual tag'
    || ($manual['legacy_source_tag_name'] ?? '') !== 'Old manual tag') {
    throw new RuntimeException('Manual display name or refreshed tag metadata was not preserved');
}

if (isset($byCode['disabled-tag']) || isset($byCode['tag_tag-disabled'])) {
    throw new RuntimeException('Explicitly disabled tag was reintroduced');
}

$newTag = $byCode['tag_tag-new'] ?? null;
if (!is_array($newTag)
    || ($newTag['channel_name'] ?? '') !== 'Newly discovered tag'
    || ($newTag['source_tag_id'] ?? '') !== 'tag-new') {
    throw new RuntimeException('New relation-table tag was not added with a deterministic channel code');
}

if (!isset($byCode['legacy-name-only'])) {
    throw new RuntimeException('Historical name-only channel was removed');
}

if (in_array('--integration', $argv, true)) {
    $app = new think\App();
    $app->initialize();

    $loadTagsMethod = new ReflectionMethod(MediaChannelService::class, 'loadCurrentTagRows');
    $loadTagsMethod->setAccessible(true);
    $activeRowsMethod = new ReflectionMethod(MediaChannelService::class, 'getActiveChannelRows');
    $activeRowsMethod->setAccessible(true);

    $startedAt = microtime(true);
    /** @var array<int, array<string, mixed>> $currentTags */
    $currentTags = $loadTagsMethod->invoke(null, null);
    /** @var array<int, array<string, mixed>> $activeRows */
    $activeRows = $activeRowsMethod->invoke(null);
    $options = MediaChannelService::getOptions();
    $elapsedMs = round((microtime(true) - $startedAt) * 1000, 1);

    $activeByTagId = [];
    foreach ($activeRows as $row) {
        $tagId = trim((string) ($row['source_tag_id'] ?? ''));
        if ($tagId !== '') {
            $activeByTagId[$tagId] = $row;
        }
    }
    $disabledTagIds = array_fill_keys(array_map(
        'strval',
        Db::name('qywx_media_channel')
            ->where('status', 0)
            ->where('source_tag_id', '<>', '')
            ->column('source_tag_id')
    ), true);

    foreach ($currentTags as $tag) {
        $tagId = (string) ($tag['source_tag_id'] ?? '');
        if ($tagId === '' || isset($disabledTagIds[$tagId])) {
            continue;
        }
        $channel = $activeByTagId[$tagId] ?? null;
        if (!is_array($channel)) {
            throw new RuntimeException("Current relation-table tag {$tagId} is absent from channel options");
        }
        $currentName = (string) ($tag['source_tag_name'] ?? '');
        if ($currentName !== '' && ($channel['source_tag_name'] ?? '') !== $currentName) {
            throw new RuntimeException("Current tag name for {$tagId} was not refreshed");
        }
    }

    if (count($options) !== count($activeRows)) {
        throw new RuntimeException('Public option count differs from merged active channel count');
    }

    $matchingNames = array_values(array_map(
        static fn (array $option): string => (string) ($option['name'] ?? ''),
        array_filter(
            $options,
            static fn (array $option): bool => mb_strpos((string) ($option['name'] ?? ''), '4') !== false
        )
    ));
    echo json_encode([
        'current_tag_count' => count($currentTags),
        'channel_option_count' => count($options),
        'elapsed_ms' => $elapsedMs,
        'matching_4' => $matchingNames,
    ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), "\n";
}

echo "MEDIA_CHANNEL_OPTIONS_MERGE_OK\n";