package handler

import (
	"fmt"
	"time"

	"gitea.urkob.com/urko/btc-pay-checker/internal/domain"
	"gitea.urkob.com/urko/btc-pay-checker/internal/services"
	"gitea.urkob.com/urko/btc-pay-checker/internal/services/price"
	"github.com/gofiber/fiber/v2"
)

type OrderHandler struct {
	walletAddress string
	orderSrv      *services.Order
	conversor     *price.PriceConversor
}

func NewOrderHandler(walletAddress string, orderSrv *services.Order, conversor *price.PriceConversor) *OrderHandler {
	return &OrderHandler{
		walletAddress: walletAddress,
		orderSrv:      orderSrv,
		conversor:     conversor,
	}
}

type orderReq struct {
	OrderID  string              `json:"order_id"`
	ClientID string              `json:"client_id"`
	Amount   float64             `json:"amount"`
	Currency domain.FiatCurrency `json:"currency"`
}

func (hdl *OrderHandler) Post(c *fiber.Ctx) error {
	req := orderReq{}
	if err := c.BodyParser(&req); err != nil {
		return RenderError(c, fmt.Errorf("id is empty"), "")
	}

	btcAmount, err := hdl.conversor.UsdToBtc(req.Amount)
	if err != nil {
		return RenderError(c, fmt.Errorf("hdl.conversor.UsdToBtc %w", err), "")
	}

	order, err := hdl.orderSrv.NewOrder(c.Context(), req.OrderID, req.ClientID, btcAmount)
	if err != nil {
		return RenderError(c, fmt.Errorf("hdl.orderSrv.NewOrder %w", err), "")
	}

	return c.Render("order",
		fiber.Map{
			"order_id":       order.ID.Hex(),
			"amount":         btcAmount,
			"wallet_address": hdl.walletAddress,
			"expires_at":     order.ExpiresAt.Format(time.RFC3339),
		},
	)
}