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.http.Url
import io.ktor.serialization.kotlinx.json.json
import kotlinx.serialization.Serializable
import kotlinx.serialization.json.Json
import model.DartFinancialResponse
import model.NaverNewsResponse
import service.DynamicNewsScraper
import service.SafeScraper
import service.UrlCacheManager
import kotlin.Double

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

        install(ContentNegotiation) { json(Json { ignoreUnknownKeys = true })

        }
        install(Logging) {
            logger = Logger.DEFAULT
            level = LogLevel.NONE
        }
    }

    suspend fun fetchAndIngestNews(corpInfo: CorpInfo) {
        val clientId = "CqXQXHO3h0kqtYsXkePY" // 설정에서 가져오도록 수정 필요
        val clientSecret = "DODCxb1M4Z"
        val qlistNews = listOf(
            "${corpInfo.stockName} 주가",
            "${corpInfo.stockName} 실적",
            "${corpInfo.stockName} 공시",
//            "${corpInfo.stockName} 이벤트"
        )

        val qlistCorpTrend = listOf(
            "${corpInfo.cName} 최근 동향",
            "${corpInfo.cName} 이슈",
//            "${corpInfo.cName} 투자",
//            "${corpInfo.cName} 실적"
        )
        (qlistNews + qlistCorpTrend).forEach { query ->
            try {
                val response: NaverNewsResponse = client.get("https://openapi.naver.com/v1/search/news.json") {
                    parameter("query", query)
                    parameter("display", 4) // 최근 10개 뉴스
                    parameter("sort", "date") // 유사도 순 (또는 date 발간순)
                    header("X-Naver-Client-Id", clientId)
                    header("X-Naver-Client-Secret", clientSecret)
                }.body()
                    SafeScraper.scrapeParallel(corpInfo,response.items.sortedBy { it.pubDate }.distinctBy { Url(it.originallink).host }.take(2) )
            } catch (e: Exception) {
                println("❌ 뉴스 가져오기 실패: ${e.message}")
            }
        }
    }


//    suspend fun fetchCorpInfo(corpCode: String): String {
//        val apiKey = "61143d2af0759f6c28ce372d9e339d1e01687abc"
//        val url = "https://opendart.fss.or.kr/api/company.json?crtfc_key=$apiKey&corp_code=$corpCode"
//
//        return try {
//            val response = client.get(url).body<CorpInfo>()
//            "기업명: ${response.corp_name}, 주요사업: ${response.main_business}"
//        } catch (e: Exception) {
//            "기업 정보 로드 실패"
//        }
//    }

    suspend fun fetchFinancialGrowth(corpCode: String?): String {
        if (corpCode != null) {
            val apiKey = "61143d2af0759f6c28ce372d9e339d1e01687abc"
            // 단일회사 주요계정 API (재무상태표, 손익계산서 주요 항목)
            val url = "https://opendart.fss.or.kr/api/fnlttSinglAcnt.json?crtfc_key=$apiKey&corp_code=$corpCode&bsns_year=2024&reprt_code=11011"

            return try {
                val response = client.get(url).body<DartFinancialResponse>()
                val accounts = response.list ?: return "재무 데이터 없음"
                var buffer : StringBuffer = StringBuffer()
                buffer.append("[재무 분석 데이터]").append("\n")
                response.list.forEach { it
                    buffer.append("${it.account_nm} (당기)${it?.thstrm_amount}, (전기)${it?.frmtrm_amount}").append("\n")
                }
                return buffer.toString()
            } catch (e: Exception) {
                "재무 API 연동 실패: ${e.message}"
            }
        } else {
            return ""
        }
    }
}

object FinancialMapper {
    /**
     * 제공된 텍스트 데이터를 파싱하여 FinancialStatement 객체로 변환
     */
    fun mapRawTextToStatement(rawText: String): FinancialStatement {
        if (rawText.isBlank()) {
            return FinancialStatement()
        }
        val currentValues = extractYearlyValues(rawText, "당기")
        val previousValues = extractYearlyValues(rawText, "전기")

        // 1. 영업이익 증가율: (당기 - 전기) / |전기| * 100
        val opCurrent = currentValues["영업이익"] ?: 0.0
        val opPrevious = previousValues["영업이익"] ?: 0.0
        val opGrowth = if (opPrevious != 0.0) ((opCurrent - opPrevious) / Math.abs(opPrevious)) * 100 else 0.0

        // 2. 당기순이익 증가율
        val niCurrent = currentValues["당기순이익(손실)"] ?: 0.0
        val niPrevious = previousValues["당기순이익(손실)"] ?: 0.0
        val niGrowth = if (niPrevious != 0.0) ((niCurrent - niPrevious) / Math.abs(niPrevious)) * 100 else 0.0

        // 3. ROE: 당기순이익 / 당기 자본총계 * 100
        val equityCurrent = currentValues["자본총계"] ?: 1.0
        val roe = (niCurrent / equityCurrent) * 100

        // 4. 부채비율: 당기 부채총계 / 당기 자본총계 * 100
        val debtCurrent = currentValues["부채총계"] ?: 0.0
        val debtRatio = (debtCurrent / equityCurrent) * 100

        // 5. 당좌비율(유동성): 당기 유동자산 / 당기 유동부채 * 100
        val currentAssets = currentValues["유동자산"] ?: 0.0
        val currentLiabilities = currentValues["유동부채"] ?: 1.0
        val quickRatio = (currentAssets / currentLiabilities) * 100

        return FinancialStatement(
            operatingProfitGrowth = opGrowth,
            netIncomeGrowth = niGrowth,
            roe = roe,
            debtRatio = debtRatio,
            quickRatio = quickRatio,
            isOperatingProfitPositive = opCurrent > 0,
            isNetIncomePositive = niCurrent > 0
        )
    }

    private fun extractYearlyValues(text: String, type: String): Map<String, Double> {
        val result = mutableMapOf<String, Double>()
        // 정규식 설명: 항목명 뒤의 (당기/전기) 괄호 안의 숫자와 콤마를 찾아 숫자로 변환
        val regex = Regex("""([가-힣\s()]+)\s\(?$type\)?([-0-9,.]+)""")
        regex.findAll(text).forEach { match ->
            val key = match.groupValues[1].trim()
            val value = match.groupValues[2].replace(",", "").toDoubleOrNull() ?: 0.0
            result[key] = value
        }
        return result
    }
}


@Serializable
data class FinancialStatement(
    val revenueGrowth: Double = 0.0,      // 매출액 증가율
    val operatingProfitGrowth: Double = 0.0, // 영업이익 증가율
    val netIncomeGrowth: Double = 0.0,    // 당기순이익 증가율
    val roe: Double = 0.0,                // ROE
    val debtRatio: Double = 0.0,          // 부채비율
    val quickRatio: Double = 0.0,          // 당좌비율
    val isOperatingProfitPositive: Boolean = false, // 당기 영업이익 흑자 여부
    val isNetIncomePositive: Boolean = false
)