package services

import (
	"net/http"
	"strconv"
	"time"
	"wm-backend/global"
	"wm-backend/internal/models"
	"wm-backend/internal/models/requests"
	"wm-backend/internal/models/responses"
	"wm-backend/internal/repositories"
	"wm-backend/pkg/helper"
	"wm-backend/response"

	"github.com/gin-gonic/gin"
	"github.com/rs/zerolog/log"
)

// CabinetCreate creates a new cabinet.
// It validates the request body and creates the cabinet in the database.
//
// @Summary      Create a new cabinet
// @Description  Create a new cabinet with the provided details
// @Tags         cabinet
// @Accept       json
// @Produce      json
// @Param        body  body  requests.CreateCabinetRequest  true  "Cabinet request body"
// @Success      201   {object}  response.SuccessResponse{data=responses.CreateCabinetResponse}
// @Failure      400   {object}  response.ErrorResponse
// @Failure      500   {object}  response.ErrorResponse
// @Router       /v1/cabinets [post]
func CabinetCreate(c *gin.Context) error {
	requestBody := requests.CreateCabinetRequest{}
	if helper.IsShouldBindJSON(c, &requestBody) {
		return nil
	}
	cabinetModel := &models.Cabinet{
		RoomID:      requestBody.RoomID,
		Name:        requestBody.Name,
		Description: requestBody.Description,
		CreatedAt:   time.Now(),
	}
	cabinet, err := repositories.CreateCabinet(c.Request.Context(), global.Queries, *cabinetModel)
	if err != nil {
		log.Error().Err(err).Msg("Failed to create cabinet")
		response.InternalServerError(c, http.StatusInternalServerError, "Failed to create cabinet")
		return nil
	}
	response.Created(c, "Cabinet created successfully", &responses.CreateCabinetResponse{
		ID: cabinet.ID,
	})
	return nil
}

// CabinetGetByID retrieves a single cabinet by its ID.
//
// @Summary      Get cabinet by ID
// @Description  Retrieve a single cabinet using its unique identifier
// @Tags         cabinet
// @Accept       json
// @Produce      json
// @Param        id   path      int  true  "Cabinet ID"
// @Success      200  {object}  response.SuccessResponse{data=models.Cabinet}
// @Failure      400  {object}  response.ErrorResponse
// @Failure      404  {object}  response.ErrorResponse
// @Failure      500  {object}  response.ErrorResponse
// @Router       /v1/cabinets/{id} [get]
func CabinetGetByID(c *gin.Context) error {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.BadRequestError(c, http.StatusBadRequest, "Invalid ID")
		return nil
	}
	cabinet, err := repositories.GetCabinetByID(c.Request.Context(), global.Queries, id)
	if err != nil {
		log.Error().Err(err).Msgf("Failed to get cabinet by ID: %d", id)
		response.NotFoundError(c, http.StatusNotFound, "Cabinet not found")
		return nil
	}
	response.Ok(c, "Success", cabinet)
	return nil
}

// CabinetList retrieves all cabinets.
//
// @Summary      List all cabinets
// @Description  Retrieve a list of all cabinets ordered by creation date
// @Tags         cabinet
// @Accept       json
// @Produce      json
// @Success      200  {object}  response.SuccessResponse{data=[]models.Cabinet}
// @Failure      500  {object}  response.ErrorResponse
// @Router       /v1/cabinets [get]
func CabinetList(c *gin.Context) error {
	cabinets, err := repositories.ListCabinets(c.Request.Context(), global.Queries)
	if err != nil {
		response.InternalServerError(c, http.StatusInternalServerError, "Failed to list cabinets")
		return nil
	}
	response.Ok(c, "Success", cabinets)
	return nil
}

// CabinetUpdate updates an existing cabinet by its ID.
// It validates the request body, fetches the existing record,
// merges non-empty fields from the request, and updates the cabinet in the database.
//
// @Summary      Update cabinet
// @Description  Update an existing cabinet by its ID. Only non-empty fields will be updated.
// @Tags         cabinet
// @Accept       json
// @Produce      json
// @Param        id    path      int                           true  "Cabinet ID"
// @Param        body  body      requests.UpdateCabinetRequest  true  "Cabinet request body"
// @Success      200   {object}  response.SuccessResponse{data=responses.UpdateCabinetResponse}
// @Failure      400   {object}  response.ErrorResponse
// @Failure      404   {object}  response.ErrorResponse
// @Failure      500   {object}  response.ErrorResponse
// @Router       /v1/cabinets/{id} [put]
func CabinetUpdate(c *gin.Context) error {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.BadRequestError(c, http.StatusBadRequest, "Invalid ID")
		return nil
	}
	requestBody := requests.UpdateCabinetRequest{}
	if helper.IsShouldBindJSON(c, &requestBody) {
		return nil
	}
	existing, err := repositories.GetCabinetByID(c.Request.Context(), global.Queries, id)
	if err != nil {
		response.NotFoundError(c, http.StatusNotFound, "Cabinet not found")
		return nil
	}
	if requestBody.Name != "" {
		existing.Name = requestBody.Name
	}
	if requestBody.Description != "" {
		existing.Description = requestBody.Description
	}
	existing.UpdatedAt = time.Now()
	cabinet, err := repositories.UpdateCabinet(c.Request.Context(), global.Queries, existing)
	if err != nil {
		response.InternalServerError(c, http.StatusInternalServerError, "Failed to update cabinet")
		return nil
	}
	response.Ok(c, "Cabinet updated successfully", &responses.UpdateCabinetResponse{
		ID:          cabinet.ID,
		RoomID:      cabinet.RoomID,
		Name:        cabinet.Name,
		Description: cabinet.Description,
	})
	return nil
}

// CabinetDelete deletes a cabinet by its ID.
//
// @Summary      Delete cabinet
// @Description  Delete a cabinet by its unique identifier
// @Tags         cabinet
// @Accept       json
// @Produce      json
// @Param        id   path      int  true  "Cabinet ID"
// @Success      200  {object}  response.SuccessResponse
// @Failure      400  {object}  response.ErrorResponse
// @Failure      500  {object}  response.ErrorResponse
// @Router       /v1/cabinets/{id} [delete]
func CabinetDelete(c *gin.Context) error {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.BadRequestError(c, http.StatusBadRequest, "Invalid ID")
		return nil
	}
	err = repositories.DeleteCabinet(c.Request.Context(), global.Queries, id)
	if err != nil {
		response.InternalServerError(c, http.StatusInternalServerError, "Failed to delete cabinet")
		return nil
	}
	response.Ok(c, "Đã xóa thành công", nil)
	return nil
}