package server

import (
	"bytes"
	"encoding/json"
	"fmt"
	"net/http"
	"os"
	"strconv"
	"time"

	"github.com/labstack/echo/v4"
	"github.com/labstack/gommon/log"

	"github.com/rjNemo/rentease/constants"
	"github.com/rjNemo/rentease/internal/domains/booking"
	"github.com/rjNemo/rentease/internal/views"
)

func (s Server) handleHomePage() echo.HandlerFunc {
	return func(ctx echo.Context) error {
		component := views.Index()
		return s.renderTempl(ctx, http.StatusOK, component)
	}
}

func (s Server) handleNewBookingPage() echo.HandlerFunc {
	return func(c echo.Context) error {
		component := views.NewBooking(constants.Platforms)
		return s.renderTempl(c, http.StatusOK, component)
	}
}

func (s Server) handleCreateBooking() echo.HandlerFunc {
	return func(c echo.Context) error {
		type NewBooking struct {
			Name           string    `form:"name"`
			PhoneNumber    string    `form:"phone_number"`
			CustomerNumber string    `form:"customer_number"`
			Email          string    `form:"email"`
			From           time.Time `json:"from"`
			To             time.Time `from:"to"`
			Platform       string    `form:"platform"`
			PlatformFees   string    `form:"platform_fees"`
		}
		nb := new(NewBooking)
		err := c.Bind(nb)
		if err != nil {
			log.Warn(err)
			return err
		}

		ts, _ := parseTime(c.FormValue("from"))
		nb.From = ts
		ts, _ = parseTime(c.FormValue("to"))
		nb.To = ts

		b := &booking.Booking{
			Name:           nb.Name,
			PhoneNumber:    nb.PhoneNumber,
			CustomerNumber: nb.CustomerNumber,
			Email:          nb.Email,
			From:           nb.From,
			To:             nb.To,
			Platform:       nb.Platform,
			PlatformFees:   nb.PlatformFees,
		}
		_ = s.db.Create(b)
		return c.Redirect(http.StatusSeeOther, fmt.Sprintf("%s/%d", constants.RouteBooking, b.Id))
	}
}

func (s Server) handleBookingPage() echo.HandlerFunc {
	return func(c echo.Context) error {
		idStr := c.Param("id")
		id, err := strconv.Atoi(idStr)
		if err != nil {
			return err
		}
		b := &booking.Booking{Id: id}
		s.db.Preload("Items").First(b)

		component := views.BookingById(b, constants.Items, constants.Platforms, constants.PaymentMethods)
		return s.renderTempl(c, http.StatusOK, component)

	}
}

func (s Server) handleCreateItem() echo.HandlerFunc {
	return func(c echo.Context) error {
		bookingIdStr := c.Param("id")
		bid, err := strconv.Atoi(bookingIdStr)
		if err != nil {
			return err
		}

		type NewItem struct {
			Item          string `form:"item"`
			Quantity      int    `form:"quantity"`
			Price         string `form:"price"`
			PaymentMethod string `form:"method"`
		}
		ni := new(NewItem)
		if err := c.Bind(ni); err != nil {
			log.Warn(err)
			return err
		}

		i := &booking.Item{
			BookingId:     bid,
			Item:          ni.Item,
			Quantity:      ni.Quantity,
			Price:         ni.Price,
			PaymentMethod: ni.PaymentMethod,
		}
		_ = s.db.Create(i)
		return s.renderTempl(c, http.StatusCreated, views.LineItem(i))
	}
}

func parseTime(src string) (time.Time, error) {
	ts, err := time.Parse("2006-01-02", src)
	if err != nil {
		return time.Time{}, err
	}
	return ts, nil
}