package staticjsonYahooFinance

import (
	"fmt"
	"net/url"
)

// A chart response is what we get back from Yahoo Finance
type chart struct {
	Chart struct {
		Result []struct {
			Meta struct {
				Currency             string  `json:"currency"`
				Symbol               string  `json:"symbol"`
				ExchangeName         string  `json:"exchangeName"`
				InstrumentType       string  `json:"instrumentType"`
				FirstTradeDate       int     `json:"firstTradeDate"`
				RegularMarketTime    int     `json:"regularMarketTime"`
				Gmtoffset            int     `json:"gmtoffset"`
				Timezone             string  `json:"timezone"`
				ExchangeTimezoneName string  `json:"exchangeTimezoneName"`
				RegularMarketPrice   float64 `json:"regularMarketPrice"`
				ChartPreviousClose   float64 `json:"chartPreviousClose"`
				PreviousClose        float64 `json:"previousClose"`
				Scale                int     `json:"scale"`
				PriceHint            int     `json:"priceHint"`
				CurrentTradingPeriod struct {
					Pre struct {
						Timezone  string `json:"timezone"`
						Start     int    `json:"start"`
						End       int    `json:"end"`
						Gmtoffset int    `json:"gmtoffset"`
					} `json:"pre"`
					Regular struct {
						Timezone  string `json:"timezone"`
						Start     int    `json:"start"`
						End       int    `json:"end"`
						Gmtoffset int    `json:"gmtoffset"`
					} `json:"regular"`
					Post struct {
						Timezone  string `json:"timezone"`
						Start     int    `json:"start"`
						End       int    `json:"end"`
						Gmtoffset int    `json:"gmtoffset"`
					} `json:"post"`
				} `json:"currentTradingPeriod"`
				TradingPeriods [][]struct {
					Timezone  string `json:"timezone"`
					Start     int    `json:"start"`
					End       int    `json:"end"`
					Gmtoffset int    `json:"gmtoffset"`
				} `json:"tradingPeriods"`
				DataGranularity string   `json:"dataGranularity"`
				Range           string   `json:"range"`
				ValidRanges     []string `json:"validRanges"`
			} `json:"meta"`
			Timestamp  []int `json:"timestamp"`
			Indicators struct {
				Quote []struct {
					Volume []any `json:"volume"`
					High   []any `json:"high"`
					Close  []any `json:"close"`
					Open   []any `json:"open"`
					Low    []any `json:"low"`
				} `json:"quote"`
			} `json:"indicators"`
		} `json:"result"`
		Error any `json:"error"`
	} `json:"chart"`
}

func (c client) getChart(symbol string) (int, error) {
	chartResponse := &chart{}
	err := c.get(fmt.Sprintf("/chart/%s", symbol), chartResponse, url.Values{})
	if err != nil {
		return 0, fmt.Errorf("http get request error: %v", err)
	}

	if len(chartResponse.Chart.Result) != 1 {
		return 0, fmt.Errorf("unexpected length of results - expected 1 but got %d", len(chartResponse.Chart.Result))
	}

	return int(chartResponse.Chart.Result[0].Meta.RegularMarketPrice * 1000), nil
}