/**
 * WikPrompt (wikiprompt.org) scraper — via Supabase REST API publik.
 *
 * Database: 76.7k+ AI prompts. API anon (public, tanpa login) ditemukan dari
 * JS bundle situs: `eywvuycenrpctxonouem.supabase.co` + anon key.
 *
 * Endpoint:
 *   - Cari  : POST-ish GET /rest/v1/rpc/search_prompts?q=&lim=&off=&sort_by=&cat=&min_quality=
 *   - Detail: GET /rest/v1/prompts?id=eq.<uuid>
 *   - Acak  : GET /rest/v1/prompts?offset=<random>&order=created_at.desc
 *
 * TEST LANGSUNG (tanpa dependency apa pun):
 *   node wikiprompt.js anime
 *   node wikiprompt.js top
 *   node wikiprompt.js random
 *   node wikiprompt.js detail <uuid>
 */

const SUPABASE_URL = process.env.WIKIPROMPT_URL || 'https://eywvuycenrpctxonouem.supabase.co'
const ANON_KEY = process.env.WIKIPROMPT_KEY || 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6ImV5d3Z1eWNlbnJwY3R4b25vdWVtIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NjkwMzc3NTQsImV4cCI6MjA4NDYxMzc1NH0.wcsALXCOLJTXMGsYKLGsCvy4f2jekyLNiweUqD7zxcw'

const BASE_HEADERS = {
    apikey: ANON_KEY,
    Authorization: `Bearer ${ANON_KEY}`,
    'Content-Type': 'application/json',
}

const LIST_SELECT = 'id,title,description,category,tags,views_count,likes_count,quality_score,is_paid,slug'
const FULL_SELECT = 'id,title,description,content,category,tags,views_count,likes_count,quality_score,is_paid,slug,source_link,created_at'

async function req(url, options = {}) {
    const res = await fetch(url, {
        headers: { ...BASE_HEADERS, ...(options.headers || {}) },
        signal: AbortSignal.timeout(options.timeout || 25000),
    })
    if (!res.ok) throw new Error(`Wikiprompt API ${res.status}: ${(await res.text()).slice(0, 120)}`)
    return res
}

/**
 * Cari prompt. `sortBy`: relevance | recent | alphabetical | category | views | rating.
 */
export async function searchPrompts({ q = '', limit = 7, offset = 0, sortBy = 'relevance', category, minQuality, select = LIST_SELECT } = {}) {
    const params = new URLSearchParams({
        q: String(q).trim().slice(0, 200),
        lim: String(limit),
        off: String(offset),
        sort_by: sortBy,
        select,
    })
    if (category) params.set('cat', category)
    if (minQuality != null) params.set('min_quality', String(minQuality))

    const res = await req(`${SUPABASE_URL}/rest/v1/rpc/search_prompts?${params.toString()}`)
    const data = await res.json()
    return Array.isArray(data) ? data : []
}

/**
 * Detail prompt by UUID.
 */
export async function getPromptById(id) {
    if (!id) throw new Error('ID prompt kosong.')
    const res = await req(`${SUPABASE_URL}/rest/v1/prompts?id=eq.${encodeURIComponent(id)}&select=${FULL_SELECT}&limit=1`)
    const data = await res.json()
    return Array.isArray(data) && data.length ? data[0] : null
}

/**
 * Ambil prompt acak (offset random di tabel).
 */
export async function randomPrompt() {
    const countRes = await req(`${SUPABASE_URL}/rest/v1/prompts?select=id&limit=1`, { headers: { Prefer: 'count=exact' } })
    const range = countRes.headers.get('content-range') || ''
    const total = Number(range.split('/')[1]) || 10000
    const off = Math.floor(Math.random() * Math.max(total - 1, 0))

    const res = await req(`${SUPABASE_URL}/rest/v1/prompts?select=${FULL_SELECT}&limit=1&order=created_at.desc&offset=${off}`)
    const data = await res.json()
    return Array.isArray(data) && data.length ? data[0] : null
}

/**
 * Total jumlah prompt di database.
 */
export async function countPrompts() {
    const countRes = await req(`${SUPABASE_URL}/rest/v1/prompts?select=id&limit=1`, { headers: { Prefer: 'count=exact' } })
    const range = countRes.headers.get('content-range') || ''
    return Number(range.split('/')[1]) || 0
}

// ===== SELF-TEST: node wikiprompt.js [query|top|random|detail <uuid>] =====
const isDirectRun = process.argv[1] && import.meta.url === new URL(`file://${process.argv[1]}`).href

if (isDirectRun) {
    ;(async () => {
        const args = process.argv.slice(2)
        try {
            const total = await countPrompts()
            console.log(`== WikPrompt scraper ==`)
            console.log(`db    : ${total.toLocaleString('id-ID')} prompts\n`)

            if (args[0] === 'random') {
                const p = await randomPrompt()
                console.log(`mode  : random`)
                console.log(`title : ${p.title}`)
                console.log(`cat   : ${p.category} | quality: ${p.quality_score} | views: ${p.views_count}`)
                console.log(`content: ${String(p.content || '').length} chars\n`)
                console.log(String(p.content || '').slice(0, 500))
            } else if (args[0] === 'detail' && args[1]) {
                const p = await getPromptById(args[1])
                if (!p) return console.log('ERROR: prompt tidak ditemukan.')
                console.log(`mode  : detail`)
                console.log(`title : ${p.title}`)
                console.log(`desc  : ${p.description}`)
                console.log(`content: ${String(p.content || '').length} chars`)
            } else if (args[0] === 'top') {
                const list = await searchPrompts({ sortBy: 'views', limit: 5 })
                console.log('mode  : top views')
                list.forEach((p, i) => console.log(`${i + 1}. ${p.title} | ${p.category} | views: ${p.views_count} | quality: ${p.quality_score}`))
            } else {
                const q = args.join(' ').trim() || 'anime'
                const list = await searchPrompts({ q, limit: 5 })
                console.log(`mode  : search "${q}"`)
                console.log(`found : ${list.length}\n`)
                list.forEach((p, i) => console.log(`${i + 1}. ${p.title} | ${p.category} | quality: ${p.quality_score} | views: ${p.views_count}`))
            }
            console.log('\ndone')
        } catch (e) {
            console.error(`ERROR: ${e.message}`)
            process.exit(1)
        }
    })()
}