package api

import (
	"git.rosemyrtle.work/personal-finance/server/internal/entity"
	openapi_types "github.com/oapi-codegen/runtime/types"
	"github.com/shopspring/decimal"
)

func ptr[T any](v T) *T {
	return &v
}

func entity2transaction(t entity.Transaction) Transaction {
	return Transaction{
		nil,
		openapi_types.Date{Time: t.Date},
		t.Description,
		ptr(int64(t.Id)),
		float32(t.Value.InexactFloat64()),
	}
}

func transaction2entity(t Transaction) entity.Transaction {
	var id uint64 = entity.InvalidId
	if t.Id != nil {
		id = uint64(*t.Id)
	}

	return entity.Transaction{
		Id:          id,
		Date:        t.Date.Time,
		Description: t.Description,
		Value:       decimal.NewFromFloat32(t.Value),
	}
}

func convertTransactions(ts entity.Transactions) Transactions {
	var ans Transactions
	for _, t := range ts {
		ans = append(ans, entity2transaction(t))
	}
	return ans
}

func convertBank(b entity.Bank) Bank {
	return Bank{b.Id, b.Name, &b.NordigenId}
}

func convertBanks(bs entity.Banks) Banks {
	var ans Banks
	for _, b := range bs {
		ans = append(ans, convertBank(b))
	}
	return ans
}