/**
 * 价格历史接口（GET /pmPriceHistory/getPmPriceHistoryPublic）
 * 用于 TradeDetail.vue 折线图数据
 */

import { buildQuery, get } from './request'
import type { ApiResponse } from './types'
import type { PageResult } from './types'

/** 单条价格历史（与 doc.json definitions["polymarket.PmPriceHistory"] 对齐） */
export interface PmPriceHistoryItem {
  ID?: number
  createdAt?: string
  fidelity?: number
  interval?: string
  /** 市场标识 */
  market?: string
  /** 价格（通常 0–1 小数，前端展示可乘 100 为百分比） */
  price?: number
  /** 时间戳（Unix 秒） */
  time?: number
  updatedAt?: string
}

/** GET /pmPriceHistory/getPmPriceHistoryPublic 请求参数 */
export interface GetPmPriceHistoryPublicParams {
  /** 市场标识（必填，用于筛选） */
  market: string
  page?: number
  pageSize?: number
  /** 数据间隔 */
  interval?: string
  /** 时间筛选 */
  time?: number
  /** 创建时间范围 */
  createdAtRange?: string[]
  fidelity?: number
  keyword?: string
  order?: string
  sort?: string
  price?: number
}

/** 响应 data 为 PageResult<PmPriceHistoryItem> */
export interface PmPriceHistoryPublicResponse {
  code: number
  data?: PageResult<PmPriceHistoryItem>
  msg: string
}

/**
 * 获取价格历史（公开接口，无需鉴权）
 * GET /pmPriceHistory/getPmPriceHistoryPublic
 */
export async function getPmPriceHistoryPublic(
  params: GetPmPriceHistoryPublicParams,
  config?: { headers?: Record<string, string> },
): Promise<PmPriceHistoryPublicResponse> {
  const { market, page = 1, pageSize = 500, interval, time, createdAtRange, fidelity, keyword, order, sort, price } = params
  const query = buildQuery({
    market,
    page,
    pageSize,
    interval,
    time,
    createdAtRange,
    fidelity,
    keyword,
    order,
    sort,
    price,
  })
  return get<PmPriceHistoryPublicResponse>('/pmPriceHistory/getPmPriceHistoryPublic', query, config)
}

/** 图表单点格式 [timestamp_ms, value_0_100] */
export type ChartDataPoint = [number, number]

/**
 * 将接口返回的 list 转为 ECharts 折线图数据
 * - time 转为毫秒时间戳
 * - price 若 ≤1 视为小数概率，乘 100；否则视为 0–100
 */
export function priceHistoryToChartData(list: PmPriceHistoryItem[]): ChartDataPoint[] {
  if (!list?.length) return []
  const out: ChartDataPoint[] = []
  for (const item of list) {
    const t = item.time
    const p = item.price
    if (t == null || p == null || !Number.isFinite(Number(t))) continue
    const tsMs = Number(t) < 1e12 ? Number(t) * 1000 : Number(t)
    const value = Number(p) <= 1 ? Number(p) * 100 : Number(p)
    out.push([tsMs, value])
  }
  out.sort((a, b) => a[0] - b[0])
  return out
}