package blockchainservicelogic

import (
	app_cloudep_blockchain "blockchain/gen_result/pb/code.30cm.net/digimon/app-cloudep-blockchain"
	"blockchain/internal/svc"
	"context"

	"code.30cm.net/digimon/library-go/errs"
	"github.com/zeromicro/go-zero/core/logx"
)

type ListSymbolsLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewListSymbolsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ListSymbolsLogic {
	return &ListSymbolsLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

// ListSymbols retrieves all available trading symbols.
func (l *ListSymbolsLogic) ListSymbols(_ *app_cloudep_blockchain.ListSymbolsRequest) (*app_cloudep_blockchain.ListSymbolsResponse, error) {
	result, err := l.svcCtx.BinanceDataSource.GetSymbols(l.ctx)
	if err != nil {
		return nil, err
	}
	rpy := make([]*app_cloudep_blockchain.Symbol, 0, len(result))
	for _, item := range result {
		if item != nil {
			const maxInt32 = 1<<31 - 1

			ap := &app_cloudep_blockchain.Symbol{
				Symbol:     item.Symbol,
				Status:     item.Status,
				BaseAsset:  item.BaseAsset,
				QuoteAsset: item.QuoteAsset,
			}

			if item.BaseAssetPrecision > maxInt32 || item.BaseAssetPrecision < -maxInt32-1 {
				return nil, errs.InvalidFormat("BaseAssetPrecision overflow")
			}
			ap.BaseAssetPrecision = int32(item.BaseAssetPrecision)
			if item.QuoteAssetPrecision > maxInt32 || item.QuoteAssetPrecision < -maxInt32-1 {
				return nil, errs.InvalidFormat("QuoteAssetPrecision overflow")
			}
			ap.QuoteAssetPrecision = int32(item.QuoteAssetPrecision)

			rpy = append(rpy, ap)
		}
	}

	return &app_cloudep_blockchain.ListSymbolsResponse{
		Symbols: rpy,
	}, nil
}