package application

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"reflect"
	"sort"
	"time"

	formvalidators "git.coopgo.io/coopgo-apps/parcoursmob/utils/form-validators"
	"git.coopgo.io/coopgo-apps/parcoursmob/utils/sorting"
	mobilityaccounts "git.coopgo.io/coopgo-platform/mobility-accounts/grpcapi"
	mobilityaccountsstorage "git.coopgo.io/coopgo-platform/mobility-accounts/storage"
	"github.com/google/uuid"
	"github.com/gorilla/mux"
	"github.com/rs/zerolog/log"
	"google.golang.org/protobuf/types/known/structpb"
)

type DriversForm struct {
	FirstName   string     `json:"first_name" validate:"required"`
	LastName    string     `json:"last_name" validate:"required"`
	Email       string     `json:"email" validate:"required,email"`
	Birthdate   *time.Time `json:"birthdate" validate:"required"`
	PhoneNumber string     `json:"phone_number" validate:"required,phoneNumber"`
	Address     any        `json:"address,omitempty"`
	Gender      string     `json:"gender"`
}

const (
	Sunday = iota
	Monday
	Tuesday
	Wednesday
	Thursday
	Friday
	Saturday
)

func (h *ApplicationHandler) SolidarityTransportOverview(w http.ResponseWriter, r *http.Request) {
	accounts, err := h.solidarityDrivers(r)
	if err != nil {
		log.Error().Err(err).Msg("")
		w.WriteHeader(http.StatusBadRequest)
		return
	}

	sort.Sort(sorting.SolidarityDriversByName(accounts))

	// cacheid := uuid.NewString()
	// h.cache.PutWithTTL(cacheid, accounts, 1*time.Hour)
	h.Renderer.SolidarityTransportOverview(w, r, accounts)
}

func (h *ApplicationHandler) SolidarityTransportCreateDriver(w http.ResponseWriter, r *http.Request) {
	if r.Method == "POST" {
		dataMap, err := parseBeneficiariesForm(r)
		if err != nil {
			log.Error().Err(err).Msg("")
			w.WriteHeader(http.StatusBadRequest)
			return
		}

		data, err := structpb.NewValue(dataMap)
		if err != nil {
			log.Error().Err(err).Msg("")
			w.WriteHeader(http.StatusInternalServerError)
			return
		}

		request := &mobilityaccounts.RegisterRequest{
			Account: &mobilityaccounts.Account{
				Namespace: "solidarity_drivers",
				Data:      data.GetStructValue(),
			},
		}

		resp, err := h.services.GRPC.MobilityAccounts.Register(context.TODO(), request)
		if err != nil {
			log.Error().Err(err).Msg("")
			w.WriteHeader(http.StatusInternalServerError)
			return
		}

		http.Redirect(w, r, fmt.Sprintf("/app/solidarity-transport/drivers/%s", resp.Account.Id), http.StatusFound)
		return
	}

	h.Renderer.SolidarityTransportCreateDriver(w, r)
}

func (h *ApplicationHandler) SolidarityTransportDriverDisplay(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	driverID := vars["driverid"]

	driver, err := h.services.GetAccount(driverID)
	if err != nil {
		log.Error().Err(err).Msg("Issue retrieving driver account")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}
	h.Renderer.SolidarityTransportDriverDisplay(w, r, driver)
}

func (h *ApplicationHandler) SolidarityTransportAddAvailability(w http.ResponseWriter, r *http.Request) {
	if r.Method != "POST" {
		log.Error().Msg("Wrong method")
		w.WriteHeader(http.StatusMethodNotAllowed)
		return
	}

	if err := r.ParseForm(); err != nil {
		log.Error().Err(err).Msg("error parsong availabilities form")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}

	vars := mux.Vars(r)
	driverID := vars["driverid"]

	availabilities := []any{}

	if r.PostFormValue("days.monday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Monday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.tuesday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Tuesday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.Wednesday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Wednesday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.thursday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Thursday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.friday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Friday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.saturday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Saturday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}
	if r.PostFormValue("days.sunday") == "on" {
		a := map[string]any{
			"id":         uuid.NewString(),
			"day":        Sunday,
			"start_time": r.PostFormValue("starttime"),
			"end_time":   r.PostFormValue("endtime"),
		}
		availabilities = append(availabilities, a)
	}

	account, err := h.services.GetAccount(driverID)
	if err != nil {
		log.Error().Err(err).Msg("driver not found")
		w.WriteHeader(http.StatusNotFound)
		return
	}

	existing_availabilities, ok := account.Data["solidarity_transport_availabilities"].([]any)
	if !ok {
		existing_availabilities = []any{}
	}

	for _, av := range availabilities {
		existing_availabilities = append(existing_availabilities, av)
	}

	account.Data["solidarity_transport_availabilities"] = existing_availabilities
	data, err := structpb.NewValue(account.Data)
	if err != nil {
		log.Error().Err(err).Msg("")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}

	request := &mobilityaccounts.UpdateDataRequest{
		Account: &mobilityaccounts.Account{
			Id:        account.ID,
			Namespace: account.Namespace,
			Data:      data.GetStructValue(),
		},
	}
	_, err = h.services.GRPC.MobilityAccounts.UpdateData(context.TODO(), request)
	if err != nil {
		log.Error().Err(err).Msg("")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}

	http.Redirect(w, r, fmt.Sprintf("/app/solidarity-transport/drivers/%s", driverID), http.StatusFound)
}

func (h *ApplicationHandler) SolidarityTransportDeleteAvailability(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	driverID := vars["driverid"]
	availabilityID := vars["availabilityid"]

	account, err := h.services.GetAccount(driverID)
	if err != nil {
		log.Error().Err(err).Msg("driver not found")
		w.WriteHeader(http.StatusNotFound)
		return
	}

	existing_availabilities, ok := account.Data["solidarity_transport_availabilities"].([]any)
	if !ok {
		log.Error().Err(errors.New("no availability found")).Msg("no availability")
		w.WriteHeader(http.StatusNotFound)
		return
	}

	new_availabilities := []any{}

	for _, av := range existing_availabilities {
		log.Info().Str("type", reflect.TypeOf(av).Name()).Msg("info on type")
		if m, ok := av.(map[string]any); ok {
			if id, ok2 := m["id"].(string); ok2 {
				if id != availabilityID {
					new_availabilities = append(new_availabilities, av)
				}
			}
		}
	}

	account.Data["solidarity_transport_availabilities"] = new_availabilities
	data, err := structpb.NewValue(account.Data)
	if err != nil {
		log.Error().Err(err).Msg("")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}

	request := &mobilityaccounts.UpdateDataRequest{
		Account: &mobilityaccounts.Account{
			Id:        account.ID,
			Namespace: account.Namespace,
			Data:      data.GetStructValue(),
		},
	}
	_, err = h.services.GRPC.MobilityAccounts.UpdateData(context.TODO(), request)
	if err != nil {
		log.Error().Err(err).Msg("")
		w.WriteHeader(http.StatusInternalServerError)
		return
	}

	http.Redirect(w, r, fmt.Sprintf("/app/solidarity-transport/drivers/%s", driverID), http.StatusFound)
}

func parseDriversForm(r *http.Request) (map[string]any, error) {
	if err := r.ParseForm(); err != nil {
		return nil, err
	}

	var date *time.Time

	if r.PostFormValue("birthdate") != "" {
		d, err := time.Parse("2006-01-02", r.PostFormValue("birthdate"))
		if err != nil {
			return nil, err
		}
		date = &d
	}

	formData := DriversForm{
		FirstName:   r.PostFormValue("first_name"),
		LastName:    r.PostFormValue("last_name"),
		Email:       r.PostFormValue("email"),
		Birthdate:   date,
		PhoneNumber: r.PostFormValue("phone_number"),
		Gender:      r.PostFormValue("gender"),
	}

	if r.PostFormValue("address") != "" {
		var a any
		json.Unmarshal([]byte(r.PostFormValue("address")), &a)

		formData.Address = a
	}

	validate := formvalidators.New()
	if err := validate.Struct(formData); err != nil {
		return nil, err
	}

	d, err := json.Marshal(formData)
	if err != nil {
		return nil, err
	}

	var dataMap map[string]any
	err = json.Unmarshal(d, &dataMap)
	if err != nil {
		return nil, err
	}

	return dataMap, nil
}

func (h *ApplicationHandler) solidarityDrivers(r *http.Request) ([]mobilityaccountsstorage.Account, error) {
	accounts := []mobilityaccountsstorage.Account{}

	request := &mobilityaccounts.GetAccountsRequest{
		Namespaces: []string{"solidarity_drivers"},
	}

	resp, err := h.services.GRPC.MobilityAccounts.GetAccounts(context.TODO(), request)
	if err != nil {
		return accounts, err
	}

	for _, account := range resp.Accounts {
		if filterAccount(r, account) {
			a := account.ToStorageType()
			accounts = append(accounts, a)
		}
	}

	return accounts, err
}