import { CONFIG } from '../../src/utils/config.js';

export const CONFIG_HYDRACKER = {
    BASE_URL: (CONFIG.HYDRACKER_URL || '').replace(/\/$/, ''), // Supprime le slash final
    API_KEY: CONFIG.HYDRACKER_API_KEY,
    TIMEOUT: CONFIG.HYDRACKER_TIMEOUT || 15000,
};

const HYDRACKER_HEADERS = {
    'Accept': 'application/json',
    'Authorization': `Bearer ${CONFIG_HYDRACKER.API_KEY}`,
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36'
};

const TIMEOUT = CONFIG_HYDRACKER.TIMEOUT; // 30 secondes par défaut (configurable)

async function fetchWithRetry(
    url: string,
    options: RequestInit = {},
    maxRetries: number = 2,
    initialDelay: number = 2000
): Promise<Response> {
    let attempt = 0;
    let delay = initialDelay;

    while (true) {
        attempt++;
        const controller = new AbortController();
        const timeoutId = setTimeout(() => controller.abort(), TIMEOUT);

        try {
            const res = await fetch(url, {
                ...options,
                signal: controller.signal
            });
            clearTimeout(timeoutId);

            if (res.status === 502 || res.status === 503 || res.status === 504 || res.status === 429) {
                if (attempt < maxRetries) {
                    console.warn(`[Hydracker-API] Attempt ${attempt}/${maxRetries} returned HTTP ${res.status} on fetch. Retrying in ${delay}ms...`);
                    await new Promise(resolve => setTimeout(resolve, delay));
                    delay *= 2;
                    continue;
                }
            }
            return res;
        } catch (err: any) {
            clearTimeout(timeoutId);
            const isTimeout = err.name === 'AbortError' || err.message?.includes('aborted');
            if (attempt < maxRetries) {
                const waitTime = isTimeout ? 1000 : delay;
                console.warn(`[Hydracker-API] Attempt ${attempt}/${maxRetries} failed/timed out (${err.message}). Retrying in ${waitTime}ms...`);
                await new Promise(resolve => setTimeout(resolve, waitTime));
                if (!isTimeout) delay *= 2;
                continue;
            }
            throw err;
        }
    }
}

export async function apiGet(urlPath: string, params: Record<string, any> = {}) {
    const qs = Object.entries(params).map(([k, v]) => `${k}=${encodeURIComponent(v)}`).join('&');
    const url = `${CONFIG_HYDRACKER.BASE_URL}/api/v1/${urlPath}` + (qs ? `?${qs}` : '');
    try {
        const res = await fetchWithRetry(url, {
            headers: HYDRACKER_HEADERS
        });
        if (!res.ok) {
            console.error(`[Hydracker-API] apiGet HTTP ${res.status} on ${urlPath}`);
            return null;
        }
        return await res.json();
    } catch (e: any) {
        console.error(`[Hydracker-API] apiGet Error on ${urlPath}:`, e.message);
        return null;
    }
}

export async function apiPost(urlPath: string, body: any = {}) {
    const url = `${CONFIG_HYDRACKER.BASE_URL}/api/v1/${urlPath}`;
    try {
        const res = await fetchWithRetry(url, {
            method: 'POST',
            headers: { ...HYDRACKER_HEADERS, 'Content-Type': 'application/json' },
            body: JSON.stringify(body)
        });
        return { status: res.status, body: await res.text() };
    } catch (e: any) {
        console.error(`[Hydracker-API] apiPost Error on ${urlPath}:`, e.message);
        return null;
    }
}

export async function fetchSearch(query: string) {
    const url = `${CONFIG_HYDRACKER.BASE_URL}/api/v1/search/${encodeURIComponent(query)}?loader=searchAutocomplete`;
    try {
        const res = await fetchWithRetry(url, {
            headers: HYDRACKER_HEADERS
        });
        if (!res.ok) {
            console.error(`[Hydracker-API] Search HTTP ${res.status} for "${query}"`);
            return null;
        }
        return await res.json();
    } catch (e: any) {
        console.error('[Hydracker-API] Search failed:', e.message);
        return null;
    }
}

export async function fetchMovieLinks(titleId: string) {
    const url = `${CONFIG_HYDRACKER.BASE_URL}/api/v1/titles/${titleId}/download`;
    try {
        const res = await fetchWithRetry(url, {
            headers: HYDRACKER_HEADERS
        });
        if (!res.ok) return null;
        return await res.json();
    } catch (e: any) {
        return null;
    }
}

export async function fetchSeriesLiens(titleId: string, season: number = 1) {
    const allLiens: any[] = [];
    let page = 1;
    while (true) {
        const result = await apiGet('liens', {
            title_id: titleId, loader: 'linksdl', season,
            perPage: 500, page, filters: '', paginate: 'lengthAware'
        });
        if (!result || result.error) break;
        const pagination = result.pagination || {};
        const data = pagination.data || [];
        if (!data.length) break;
        allLiens.push(...data);
        const lastPage = pagination.last_page || pagination.lastPage || 1;
        if (page >= lastPage) break;
        page++;
    }
    return allLiens;
}