package repository

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

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

type Downloader interface {
	// FetchHistoryKline 抓歷史 K 線資料
	FetchHistoryKline(ctx context.Context, param QueryKline) ([]*entity.Kline, error)
	SaveHistoryKline(ctx context.Context, data []*entity.Kline) error
}

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