package account

import (
	"github.com/gofiber/fiber/v2"
	"go.uber.org/zap"
	"math"
	qutils "penahub.gitlab.yandexcloud.net/backend/quiz/common.git/utils"
	"penahub.gitlab.yandexcloud.net/pena-services/customer/internal/errors"
	"penahub.gitlab.yandexcloud.net/pena-services/customer/internal/interface/client"
	"penahub.gitlab.yandexcloud.net/pena-services/customer/internal/interface/controller/http"
	"penahub.gitlab.yandexcloud.net/pena-services/customer/internal/interface/repository"
	"penahub.gitlab.yandexcloud.net/pena-services/customer/internal/models"
	"strconv"
)

type Deps struct {
	MiddleWare  *http.MiddleWare
	AccountRepo *repository.AccountRepository
	Logger      *zap.Logger
	Encrypt     *qutils.Encrypt
	AuthClient  *client.AuthClient
}

type AccountController struct {
	middleWare  *http.MiddleWare
	accountRepo *repository.AccountRepository
	logger      *zap.Logger
	encrypt     *qutils.Encrypt
	authClient  *client.AuthClient
}

func NewAccountController(deps Deps) *AccountController {
	return &AccountController{
		middleWare:  deps.MiddleWare,
		accountRepo: deps.AccountRepo,
		logger:      deps.Logger,
		encrypt:     deps.Encrypt,
		authClient:  deps.AuthClient,
	}
}

func (receiver *AccountController) DeleteAccount(ctx *fiber.Ctx) error {
	userID, ok := receiver.middleWare.ExtractUserID(ctx)
	if !ok || userID == "" {
		return receiver.middleWare.NoAuth(ctx)
	}

	account, err := receiver.accountRepo.Remove(ctx.Context(), userID)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) ChangeAccount(ctx *fiber.Ctx) error {
	userID, ok := receiver.middleWare.ExtractUserID(ctx)
	if !ok || userID == "" {
		return receiver.middleWare.NoAuth(ctx)
	}

	var request models.Name
	if err := ctx.BodyParser(&request); err != nil {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "failed to bind json", err)
	}

	account, err := receiver.accountRepo.UpdateName(ctx.Context(), userID, &request)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) SetAccountVerificationStatus(ctx *fiber.Ctx) error {
	userID := ctx.Params("userId")
	if userID == "" {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "invalid format for parameter userId")
	}

	var request models.SetAccountStatus
	if err := ctx.BodyParser(&request); err != nil {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "failed to bind json", err)
	}

	account, err := receiver.accountRepo.SetStatus(ctx.Context(), userID, request.Status)
	if err != nil {
		receiver.logger.Error("failed to set status on <SetVerificationStatus> of <AccountService>", zap.Error(err))
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) GetAccount(ctx *fiber.Ctx) error {
	userID, ok := receiver.middleWare.ExtractUserID(ctx)
	if !ok || userID == "" {
		return receiver.middleWare.NoAuth(ctx)
	}

	account, err := receiver.accountRepo.FindByUserID(ctx.Context(), userID)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) AddAccount(ctx *fiber.Ctx) error {
	userID, ok := receiver.middleWare.ExtractUserID(ctx)
	if !ok || userID == "" {
		return receiver.middleWare.NoAuth(ctx)
	}

	var er error

	quizFrom := ctx.Cookies("quizFrom")
	quizUser := ctx.Cookies("quizUser")
	if quizUser != "" {
		quizUser, er = receiver.encrypt.DecryptStr([]byte(quizUser))
		if er != nil {
			return receiver.middleWare.ErrorOld(ctx, er)
		}
	}

	account, err := receiver.accountRepo.FindByUserID(ctx.Context(), userID)
	if err != nil && err.Type() != errors.ErrNotFound {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	if account != nil {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "account exists")
	}

	user, err := receiver.authClient.GetUser(ctx.Context(), userID)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	account, err = receiver.accountRepo.Insert(ctx.Context(), &models.Account{
		UserID: user.ID, Wallet: models.Wallet{Currency: models.DefaultCurrency}, From: quizFrom, Partner: quizUser})
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) DeleteDirectAccount(ctx *fiber.Ctx) error {
	userID := ctx.Params("userId")
	if userID == "" {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "invalid format for parameter userId")
	}

	account, err := receiver.accountRepo.Remove(ctx.Context(), userID)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) GetDirectAccount(ctx *fiber.Ctx) error {
	userID := ctx.Params("userId")
	if userID == "" {
		return receiver.middleWare.Error(ctx, fiber.StatusBadRequest, "invalid format for parameter userId")
	}

	account, err := receiver.accountRepo.FindByUserID(ctx.Context(), userID)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	return ctx.Status(fiber.StatusOK).JSON(account)
}

func (receiver *AccountController) PaginationAccounts(ctx *fiber.Ctx) error {
	pageStr := ctx.Query("page", "1")
	limitStr := ctx.Query("limit", "100")

	page, err := strconv.ParseInt(pageStr, 10, 64)
	if err != nil || page < 1 {
		page = 1
	}
	limit, err := strconv.ParseInt(limitStr, 10, 64)
	if err != nil || limit < 1 {
		limit = models.DefaultLimit
	} else {
		limit = int64(math.Min(float64(limit), float64(models.DefaultLimit)))
	}

	count, err := receiver.accountRepo.CountAll(ctx.Context())
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	if count == 0 {
		response := models.PaginationResponse[models.Account]{TotalPages: 0, Records: []models.Account{}}
		return ctx.Status(fiber.StatusOK).JSON(response)
	}

	totalPages := int64(math.Ceil(float64(count) / float64(limit)))

	accounts, err := receiver.accountRepo.FindMany(ctx.Context(), page, limit)
	if err != nil {
		return receiver.middleWare.ErrorOld(ctx, err)
	}

	response := models.PaginationResponse[models.Account]{
		TotalPages: totalPages,
		Records:    accounts,
	}

	return ctx.Status(fiber.StatusOK).JSON(response)
}