import { cli, Strategy } from '@jackwener/opencli/registry';
import { AuthRequiredError, CommandExecutionError } from '@jackwener/opencli/errors';
import { BROWSER_JSON_SNIFF_FN, throwIfLoginWall } from '@jackwener/opencli/utils';
import { TWITTER_BEARER_TOKEN, applyTopByEngagement } from './utils.js';
import { extractCard, extractQuotedTweet, extractMedia, describeTwitterApiError } from './shared.js';

const LIST_TWEETS_QUERY_ID = 'RlZzktZY_9wJynoepm8ZsA';
const OPERATION_NAME = 'ListLatestTweetsTimeline';
const MAX_PAGINATION_PAGES = 100;

const FEATURES = {
    rweb_video_screen_enabled: false,
    profile_label_improvements_pcf_label_in_post_enabled: true,
    rweb_tipjar_consumption_enabled: true,
    verified_phone_label_enabled: false,
    creator_subscriptions_tweet_preview_api_enabled: true,
    responsive_web_graphql_timeline_navigation_enabled: true,
    responsive_web_graphql_skip_user_profile_image_extensions_enabled: false,
    premium_content_api_read_enabled: false,
    communities_web_enable_tweet_community_results_fetch: true,
    c9s_tweet_anatomy_moderator_badge_enabled: true,
    responsive_web_grok_analyze_button_fetch_trends_enabled: false,
    responsive_web_grok_analyze_post_followups_enabled: true,
    responsive_web_jetfuel_frame: false,
    responsive_web_grok_share_attachment_enabled: true,
    articles_preview_enabled: true,
    responsive_web_edit_tweet_api_enabled: true,
    graphql_is_translatable_rweb_tweet_is_translatable_enabled: true,
    view_counts_everywhere_api_enabled: true,
    longform_notetweets_consumption_enabled: true,
    responsive_web_twitter_article_tweet_consumption_enabled: true,
    tweet_awards_web_tipping_enabled: false,
    responsive_web_grok_show_grok_translated_post: false,
    responsive_web_grok_analysis_button_from_backend: false,
    creator_subscriptions_quote_tweet_preview_enabled: false,
    freedom_of_speech_not_reach_fetch_enabled: true,
    standardized_nudges_misinfo: true,
    tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled: true,
    longform_notetweets_rich_text_read_enabled: true,
    longform_notetweets_inline_media_enabled: true,
    responsive_web_grok_image_annotation_enabled: true,
    responsive_web_enhance_cards_enabled: false,
};

function buildUrl(queryId, listId, count, cursor) {
    const vars = { listId: String(listId), count };
    if (cursor)
        vars.cursor = cursor;
    return `/i/api/graphql/${queryId}/${OPERATION_NAME}`
        + `?variables=${encodeURIComponent(JSON.stringify(vars))}`
        + `&features=${encodeURIComponent(JSON.stringify(FEATURES))}`;
}

export function extractTimelineTweet(result, seen) {
    if (!result)
        return null;
    const tw = result.tweet || result;
    const legacy = tw.legacy || {};
    if (!tw.rest_id || seen.has(tw.rest_id))
        return null;
    seen.add(tw.rest_id);
    const user = tw.core?.user_results?.result;
    const screenName = user?.legacy?.screen_name || user?.core?.screen_name || 'unknown';
    const displayName = user?.legacy?.name || user?.core?.name || '';
    const bio = user?.legacy?.description || '';
    const noteText = tw.note_tweet?.note_tweet_results?.result?.text;
    return {
        id: tw.rest_id,
        author: screenName,
        name: displayName,
        bio,
        text: noteText || legacy.full_text || '',
        likes: legacy.favorite_count || 0,
        retweets: legacy.retweet_count || 0,
        replies: legacy.reply_count || 0,
        created_at: legacy.created_at || '',
        url: `https://x.com/${screenName}/status/${tw.rest_id}`,
        ...extractMedia(legacy),
        card: extractCard(tw),
        quoted_tweet: extractQuotedTweet(tw),
    };
}

export function parseListTimeline(data, seen) {
    const tweets = [];
    let nextCursor = null;
    const instructions = data?.data?.list?.tweets_timeline?.timeline?.instructions || [];
    for (const inst of instructions) {
        for (const entry of inst.entries || []) {
            const content = entry.content;
            if (content?.entryType === 'TimelineTimelineCursor' || content?.__typename === 'TimelineTimelineCursor') {
                if (content.cursorType === 'Bottom' || content.cursorType === 'ShowMore')
                    nextCursor = content.value;
                continue;
            }
            if (entry.entryId?.startsWith('cursor-bottom-') || entry.entryId?.startsWith('cursor-showMore-')) {
                nextCursor = content?.value || content?.itemContent?.value || nextCursor;
                continue;
            }
            const direct = extractTimelineTweet(content?.itemContent?.tweet_results?.result, seen);
            if (direct) {
                tweets.push(direct);
                continue;
            }
            for (const item of content?.items || []) {
                const nested = extractTimelineTweet(item.item?.itemContent?.tweet_results?.result, seen);
                if (nested)
                    tweets.push(nested);
            }
        }
    }
    return { tweets, nextCursor };
}

cli({
    site: 'twitter',
    name: 'list-tweets',
    access: 'read',
    description: 'Fetch tweets from a Twitter/X list timeline',
    domain: 'x.com',
    strategy: Strategy.COOKIE,
    browser: true,
    args: [
        { name: 'listId', positional: true, type: 'string', required: true, help: 'Numeric ID of a Twitter/X list (e.g. from `opencli twitter lists`)' },
        { name: 'limit', type: 'int', default: 50 },
        { name: 'top-by-engagement', type: 'int', default: 0, help: 'When set to N>0, re-rank the list timeline by weighted engagement (likes×1 + retweets×3 + replies×2 + bookmarks×5 + log10(views+1)×0.5) and return the top N. Default 0 keeps the list\'s native (recency) ordering.' },
    ],
    columns: ['id', 'author', 'bio', 'text', 'likes', 'retweets', 'replies', 'created_at', 'url', 'has_media', 'media_urls', 'media_posters', 'card', 'quoted_tweet'],
    func: async (page, kwargs) => {
        const listId = String(kwargs.listId || '').trim();
        if (!listId || !/^\d+$/.test(listId)) {
            throw new CommandExecutionError(`Invalid listId: ${JSON.stringify(kwargs.listId)}. Expected a numeric ID (see \`opencli twitter lists\`).`);
        }
        const limit = kwargs.limit || 50;
        const cookies = await page.getCookies({ url: 'https://x.com' });
        const ct0 = cookies.find((c) => c.name === 'ct0')?.value || null;
        if (!ct0)
            throw new AuthRequiredError('x.com', 'Not logged into x.com (no ct0 cookie)');
        // opencli >=1.7.x wraps primitive page.evaluate returns as { session, data: <value> }.
        // Without unwrap, the string queryId becomes "[object Object]" when interpolated into the URL,
        // causing HTTP 400 "queryId may have expired".
        const unwrap = (v) => (v && typeof v === 'object' && 'session' in v && 'data' in v ? v.data : v);
        const queryIdRaw = await page.evaluate(`async () => {
            try {
                const ghResp = await fetch('https://raw.githubusercontent.com/fa0311/twitter-openapi/refs/heads/main/src/config/placeholder.json');
                if (ghResp.ok) {
                    const data = await ghResp.json();
                    const entry = data['${OPERATION_NAME}'];
                    if (entry && entry.queryId) return entry.queryId;
                }
            } catch {}
            try {
                const scripts = performance.getEntriesByType('resource')
                    .filter(r => r.name.includes('client-web') && r.name.endsWith('.js'))
                    .map(r => r.name);
                for (const scriptUrl of scripts.slice(0, 15)) {
                    try {
                        const text = await (await fetch(scriptUrl)).text();
                        const re = /queryId:"([A-Za-z0-9_-]+)"[^}]{0,200}operationName:"${OPERATION_NAME}"/;
                        const m = text.match(re);
                        if (m) return m[1];
                    } catch {}
                }
            } catch {}
            return null;
        }`);
        const queryId = unwrap(queryIdRaw) || LIST_TWEETS_QUERY_ID;
        const headers = JSON.stringify({
            'Authorization': `Bearer ${decodeURIComponent(TWITTER_BEARER_TOKEN)}`,
            'X-Csrf-Token': ct0,
            'X-Twitter-Auth-Type': 'OAuth2Session',
            'X-Twitter-Active-User': 'yes',
        });
        const allTweets = [];
        const seen = new Set();
        let cursor = null;
        // Runaway guard only; --limit and cursor exhaustion control normal pagination.
        for (let i = 0; i < MAX_PAGINATION_PAGES && allTweets.length < limit; i++) {
            const fetchCount = Math.min(100, limit - allTweets.length + 10);
            const apiUrl = buildUrl(queryId, listId, fetchCount, cursor);
            const data = throwIfLoginWall(await page.evaluate(`async () => {
                ${BROWSER_JSON_SNIFF_FN}
                return await fetchJsonOrLoginWall(${JSON.stringify(apiUrl)}, { headers: ${headers}, credentials: 'include' });
            }`), { url: apiUrl });
            if (data?.error) {
                if (allTweets.length === 0)
                    throw new CommandExecutionError(describeTwitterApiError('ListLatestTweetsTimeline', data.error, 'list may be private'));
                break;
            }
            const { tweets, nextCursor } = parseListTimeline(data, seen);
            allTweets.push(...tweets);
            if (!nextCursor || nextCursor === cursor || tweets.length === 0)
                break;
            cursor = nextCursor;
        }
        const trimmed = allTweets.slice(0, limit);
        return applyTopByEngagement(trimmed, kwargs['top-by-engagement']);
    },
});
