package network

import io.ktor.client.HttpClient
import io.ktor.client.call.body
import io.ktor.client.engine.cio.CIO
import io.ktor.client.engine.cio.CIOEngineConfig
import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
import io.ktor.client.plugins.logging.DEFAULT
import io.ktor.client.plugins.logging.LogLevel
import io.ktor.client.plugins.logging.Logger
import io.ktor.client.plugins.logging.Logging
import io.ktor.client.request.get
import io.ktor.client.request.header
import io.ktor.client.request.parameter
import io.ktor.http.ContentType.Application.Json
import io.ktor.serialization.kotlinx.json.json
import kotlinx.serialization.json.Json
import model.NaverNewsResponse

object NewsService {
    private val client = HttpClient<CIOEngineConfig>(CIO) {

        install(ContentNegotiation) { json(Json { ignoreUnknownKeys = true })
            install(Logging) {
                logger = Logger.DEFAULT
                level = LogLevel.ALL
            }
        }
    }

    suspend fun fetchAndIngestNews(query: String) {
        val clientId = "CqXQXHO3h0kqtYsXkePY" // 설정에서 가져오도록 수정 필요
        val clientSecret = "DODCxb1M4Z"

        try {
            val response: NaverNewsResponse = client.get("https://openapi.naver.com/v1/search/news.json") {
                parameter("query", query)
                parameter("display", 10) // 최근 10개 뉴스
                parameter("sort", "sim") // 유사도 순 (또는 date 발간순)
                header("X-Naver-Client-Id", clientId)
                header("X-Naver-Client-Secret", clientSecret)
            }.body()

            response.items.forEach { item ->
                // HTML 태그 제거 및 텍스트 정제
                val cleanTitle = item.title.replace(Regex("<[^>]*>"), "")
                val cleanDesc = item.description.replace(Regex("<[^>]*>"), "")
                val fullText = "[$cleanTitle] $cleanDesc"
                println(fullText)
                // RAG 서비스에 학습(Ingest) 시키기
                RagService.ingest(
                    text = fullText,
                    meta = "{\"link\": \"${item.originallink}\", \"date\": \"${item.pubDate}\"}"
                )
            }
            println("📰 '${query}' 관련 뉴스 10개 학습 완료")
        } catch (e: Exception) {
            println("❌ 뉴스 가져오기 실패: ${e.message}")
        }
    }
}