package services

import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"net/http"
	"time"

	"gitea.urkob.com/urko/btc-pay-checker/internal/domain"
	"gitea.urkob.com/urko/btc-pay-checker/internal/platform/mongodb/order"
	"go.mongodb.org/mongo-driver/bson/primitive"
)

const defaultExpirationTime = time.Minute * 30

type Order struct {
	repo       *order.Repo
	expiration time.Duration
	client     *http.Client
}

func NewOrder(repo *order.Repo) *Order {
	return &Order{
		repo:       repo,
		expiration: defaultExpirationTime,
		client:     &http.Client{},
	}
}

func (o *Order) WithExpiration(expiration time.Duration) *Order {
	o.expiration = expiration
	return o
}
func (o *Order) NewOrder(ctx context.Context, orderID, clientID, email string, amount float64) (*domain.Order, error) {
	order := domain.Order{
		ID:        primitive.NewObjectID(),
		OrderID:   orderID,
		ClientID:  clientID,
		Amount:    amount,
		PaidAt:    time.Time{},
		CreatedAt: time.Now(),
		ExpiresAt: time.Now().Add(o.expiration),
		Email:     email,
	}

	_, err := o.repo.Insert(ctx, &order)
	if err != nil {
		return nil, err
	}
	return &order, err
}

func (o *Order) FromAmount(ctx context.Context, amount float64, timestamp time.Time) (*domain.Order, error) {
	return o.repo.FromAmount(ctx, amount, timestamp)
}

func (o *Order) OrderCompleted(ctx context.Context, order *domain.Order) (*domain.Order, error) {
	return o.repo.OrderCompleted(ctx, order)
}

func (o *Order) Webhook(ctx context.Context, webhookUrl string, order *domain.Order) error {
	if webhookUrl == "" {
		return nil
	}

	reqBody, err := json.Marshal(order)
	if err != nil {
		fmt.Println(err)
		return err
	}

	payload := bytes.NewReader(reqBody)
	client := &http.Client{}
	req, err := http.NewRequest(http.MethodPost, webhookUrl, payload)
	if err != nil {
		fmt.Println(err)
		return err
	}
	req.Header.Add("Accept", "application/json")
	req.Header.Add("Content-Type", "application/json")

	res, err := client.Do(req)
	if err != nil {
		return fmt.Errorf("client.Do: %w", err)
	}
	if res.StatusCode != http.StatusOK {
		defer res.Body.Close()

		body, err := io.ReadAll(res.Body)
		if err != nil {
			return errors.Join(fmt.Errorf("response status code is: %d", res.StatusCode), err)
		}

		return fmt.Errorf("response status code is: %d | response body %s body", res.StatusCode, string(body))
	}

	return nil

}