package controller

import (
	"encoding/base64"
	"io"
	"net/http"

	"github.com/Caknoooo/go-gin-clean-starter/modules/client/dto"
	"github.com/Caknoooo/go-gin-clean-starter/modules/client/query"
	"github.com/Caknoooo/go-gin-clean-starter/modules/client/service"
	"github.com/Caknoooo/go-gin-clean-starter/pkg/constants"
	"github.com/Caknoooo/go-gin-clean-starter/pkg/utils"
	"github.com/gin-gonic/gin"
	"github.com/samber/do"

	// "github.com/sirupsen/logrus"
	"gorm.io/gorm"
)

type (
	ClientController interface {
		Create(ctx *gin.Context)
		Update(ctx *gin.Context)
		Delete(ctx *gin.Context)
		GetById(ctx *gin.Context)
		GetAll(ctx *gin.Context)
		AssignMenusToClient(ctx *gin.Context)
		RemoveMenusFromClient(ctx *gin.Context)
	}

	clientController struct {
		clientService service.ClientService
		db            *gorm.DB
	}
)

func NewClientController(i *do.Injector, clientService service.ClientService) ClientController {
	db := do.MustInvokeNamed[*gorm.DB](i, constants.DB)
	return &clientController{
		clientService: clientService,
		db:            db,
	}
}

func (c *clientController) Create(ctx *gin.Context) {
	var req dto.ClientCreateRequest
	if err := ctx.ShouldBind(&req); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_DATA_FROM_BODY, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	// Ambil file logo (opsional)
	file, _, err := ctx.Request.FormFile("logo")
	if err == nil && file != nil {
		fileBytes, _ := io.ReadAll(file)
		base64Str := base64.StdEncoding.EncodeToString(fileBytes)
		req.Logo = base64Str
	}

	created, err := c.clientService.Create(ctx, req)
	if err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_CREATE_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusInternalServerError, res)
		return
	}

	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_CREATE_CLIENT, created)
	ctx.JSON(http.StatusOK, res)
}

func (c *clientController) Update(ctx *gin.Context) {
	id := ctx.Param("id")
	var req dto.ClientUpdateRequest
	if err := ctx.ShouldBind(&req); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_DATA_FROM_BODY, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	// Ambil file logo (opsional, untuk update)
	file, _, err := ctx.Request.FormFile("logo")
	if err == nil && file != nil {
		fileBytes, _ := io.ReadAll(file)
		base64Str := base64.StdEncoding.EncodeToString(fileBytes)
		req.Logo = &base64Str
	}

	client, err := c.clientService.Update(ctx, req, id)
	if err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_UPDATE_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusInternalServerError, res)
		return
	}

	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_UPDATE_CLIENT, client)
	ctx.JSON(http.StatusOK, res)
}

func (c *clientController) Delete(ctx *gin.Context) {
	id := ctx.Param("id")
	if err := c.clientService.Delete(ctx, id); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_DELETE_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusInternalServerError, res)
		return
	}
	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_DELETE_CLIENT, nil)
	ctx.JSON(http.StatusOK, res)
}

func (c *clientController) GetById(ctx *gin.Context) {
	id := ctx.Param("id")
	client, err := c.clientService.GetById(ctx, id)
	if err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusNotFound, res)
		return
	}
	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_GET_CLIENT, client)
	ctx.JSON(http.StatusOK, res)
}
func (c *clientController) GetAll(ctx *gin.Context) {
	// Ambil filter dari query param
	var filter query.ClientFilter
	if err := ctx.ShouldBindQuery(&filter); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	// Ambil limit & offset dari query param (default: limit=10, offset=0)
	perPage := utils.ParseInt(ctx.DefaultQuery("per_page", "10"))
	page := utils.ParseInt(ctx.DefaultQuery("page", "1"))
	filter.PerPage = perPage
	filter.Page = (page - 1) * perPage

	clients, total, err := c.clientService.GetAll(ctx, filter)
	if err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	paginationResponse := utils.BuildPaginationResponse(perPage, page, total)
	response := utils.BuildResponseSuccessWithPagination(http.StatusOK, dto.MESSAGE_SUCCESS_GET_CLIENT, clients, paginationResponse)
	ctx.JSON(http.StatusOK, response)
}

// AssignMenusToClient implements MenuController.
func (c *clientController) AssignMenusToClient(ctx *gin.Context) {
	clientId := ctx.Param("id")
	var req dto.AssignMenusToClientRequest
	if err := ctx.ShouldBind(&req); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_DATA_FROM_BODY, err.Error(), nil)
		ctx.AbortWithStatusJSON(http.StatusBadRequest, res)
		return
	}

	if err := c.clientService.AssignMenusToClient(ctx.Request.Context(), clientId, req.MenuIds); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_ASSIGN_MENUS_TO_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	resp := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_ASSIGN_MENUS_TO_CLIENT, nil)
	ctx.JSON(http.StatusOK, resp)
}

// RemoveMenusFromClient implements MenuController.
func (c *clientController) RemoveMenusFromClient(ctx *gin.Context) {
	clientId := ctx.Param("id")
	var req dto.RemoveMenusFromClientRequest
	if err := ctx.ShouldBind(&req); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_DATA_FROM_BODY, err.Error(), nil)
		ctx.AbortWithStatusJSON(http.StatusBadRequest, res)
		return
	}

	if err := c.clientService.RemoveMenusFromClient(ctx.Request.Context(), clientId, req.MenuIds); err != nil {
		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_REMOVE_MENUS_FROM_CLIENT, err.Error(), nil)
		ctx.JSON(http.StatusBadRequest, res)
		return
	}

	resp := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_REMOVE_MENUS_FROM_CLIENT, nil)
	ctx.JSON(http.StatusOK, resp)
}