package controllers

import (
	"GoMembership/internal/constants"
	"GoMembership/internal/models"
	"GoMembership/internal/services"
	"GoMembership/internal/utils"
	"GoMembership/pkg/errors"
	"GoMembership/pkg/logger"
	"fmt"
	"net/http"

	"github.com/gin-gonic/gin"
)

type CarController struct {
	S           services.CarServiceInterface
	UserService services.UserServiceInterface
}

func (cr *CarController) Create(c *gin.Context) {
	requestUser, err := cr.UserService.FromContext(c)
	if err != nil {
		utils.RespondWithError(c, err, "Error extracting user from context in Create car handler", http.StatusBadRequest, errors.Responses.Fields.User, errors.Responses.Keys.NoAuthToken)
		return
	}
	if !requestUser.HasPrivilege(constants.Priviliges.Create) {
		utils.RespondWithError(c, errors.ErrNotAuthorized, fmt.Sprintf("Not allowed to create a car. RoleID(%v)<Privilige(%v)", requestUser.RoleID, constants.Priviliges.Create), http.StatusUnauthorized, errors.Responses.Fields.User, errors.Responses.Keys.Unauthorized)
		return
	}
	var newCar models.Car
	if err := c.ShouldBindJSON(&newCar); err != nil {
		utils.HandleValidationError(c, err)
		return
	}
	car, err := cr.S.Create(&newCar)
	if err != nil {
		utils.RespondWithError(c, err, "Error creating car", http.StatusInternalServerError, errors.Responses.Fields.Car, errors.Responses.Keys.InternalServerError)
		return
	}
	c.JSON(http.StatusCreated, car)
}

func (cr *CarController) Update(c *gin.Context) {
	requestUser, err := cr.UserService.FromContext(c)
	if err != nil {
		utils.RespondWithError(c, err, "Error extracting user from context in Update car handler", http.StatusBadRequest, errors.Responses.Fields.User, errors.Responses.Keys.NoAuthToken)
		return
	}
	if !requestUser.HasPrivilege(constants.Priviliges.Update) {
		utils.RespondWithError(c, errors.ErrNotAuthorized, fmt.Sprintf("Not allowed to update a car. RoleID(%v)<Privilige(%v)", requestUser.RoleID, constants.Priviliges.Update), http.StatusUnauthorized, errors.Responses.Fields.User, errors.Responses.Keys.Unauthorized)
		return
	}
	var car models.Car
	if err := c.ShouldBindJSON(&car); err != nil {
		utils.HandleValidationError(c, err)
		return
	}
	logger.Error.Printf("updating car: %v", car)
	updatedCar, err := cr.S.Update(&car)
	if err != nil {
		utils.RespondWithError(c, err, "Error updating car", http.StatusInternalServerError, errors.Responses.Fields.Car, errors.Responses.Keys.InternalServerError)
		return
	}
	c.JSON(http.StatusOK, updatedCar)
}

func (cr *CarController) GetAll(c *gin.Context) {
	requestUser, err := cr.UserService.FromContext(c)
	if err != nil {
		utils.RespondWithError(c, err, "Error extracting user from context in GetAll car handler", http.StatusBadRequest, errors.Responses.Fields.User, errors.Responses.Keys.NoAuthToken)
		return
	}

	if !requestUser.HasPrivilege(constants.Priviliges.View) {
		utils.RespondWithError(c, errors.ErrNotAuthorized, fmt.Sprintf("Not allowed to access car data. RoleID(%v)<Privilige(%v)", requestUser.RoleID, constants.Priviliges.Delete), http.StatusUnauthorized, errors.Responses.Fields.User, errors.Responses.Keys.Unauthorized)
		return
	}

	cars, err := cr.S.GetAll()
	if err != nil {
		utils.RespondWithError(c, err, "Error getting cars", http.StatusInternalServerError, errors.Responses.Fields.Car, errors.Responses.Keys.InternalServerError)
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"cars": cars,
	})
}

func (cr *CarController) Delete(c *gin.Context) {
	type input struct {
		ID uint `json:"id" binding:"required,numeric"`
	}
	var deleteData input
	requestUser, err := cr.UserService.FromContext(c)
	if err != nil {
		utils.RespondWithError(c, err, "Error extracting user from context in Delete car handler", http.StatusBadRequest, errors.Responses.Fields.User, errors.Responses.Keys.NoAuthToken)
		return
	}

	if !requestUser.HasPrivilege(constants.Priviliges.Delete) {
		utils.RespondWithError(c, errors.ErrNotAuthorized, fmt.Sprintf("Not allowed to delete a car. RoleID(%v)<Privilige(%v)", requestUser.RoleID, constants.Priviliges.Delete), http.StatusUnauthorized, errors.Responses.Fields.User, errors.Responses.Keys.Unauthorized)
		return
	}

	if err := c.ShouldBindJSON(&deleteData); err != nil {
		utils.HandleValidationError(c, err)
		return
	}
	err = cr.S.Delete(&deleteData.ID)
	if err != nil {
		utils.RespondWithError(c, err, "Error deleting car", http.StatusInternalServerError, errors.Responses.Fields.Car, errors.Responses.Keys.InternalServerError)
		return
	}
	c.JSON(http.StatusOK, "Car deleted")
}