package repository

import (
	"blockchain/internal/domain/entity"
	"context"
)

type DataSourceRepository interface {
	GetSymbols(ctx context.Context) ([]*entity.Symbol, error)
	KlineDownloader
}

type KlineDownloader interface {
	// FetchHistoryKline 抓歷史K線資料，startMillis=0 表示從最早，endMillis=0 表示到最新
	FetchHistoryKline(ctx context.Context, param QueryKline) ([]*entity.Kline, error)
}

type QueryKline struct {
	Symbol        string
	Interval      string
	StartUnixNano int64
	EndUnixNano   int64
}