/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package controller

import (
	"encoding/json"

	"github.com/apache/answer/internal/base/handler"
	"github.com/apache/answer/internal/base/translator"
	"github.com/apache/answer/internal/service/siteinfo_common"
	"github.com/gin-gonic/gin"
	"github.com/segmentfault/pacman/i18n"
)

type LangController struct {
	translator      i18n.Translator
	siteInfoService siteinfo_common.SiteInfoCommonService
}

// NewLangController new language controller.
func NewLangController(tr i18n.Translator, siteInfoService siteinfo_common.SiteInfoCommonService) *LangController {
	return &LangController{translator: tr, siteInfoService: siteInfoService}
}

// GetLangMapping get language config mapping
// @Summary get language config mapping
// @Description get language config mapping
// @Tags Lang
// @Param Accept-Language header string true "Accept-Language"
// @Produce json
// @Success 200 {object} handler.RespBody{}
// @Router /answer/api/v1/language/config [get]
func (u *LangController) GetLangMapping(ctx *gin.Context) {
	data, _ := u.translator.Dump(handler.GetLangByCtx(ctx))
	var resp map[string]any
	_ = json.Unmarshal(data, &resp)
	handler.HandleResponse(ctx, nil, resp)
}

// GetAdminLangOptions Get language options
// @Summary Get language options
// @Description Get language options
// @Security ApiKeyAuth
// @Tags Lang
// @Produce json
// @Success 200 {object} handler.RespBody{}
// @Router /answer/admin/api/language/options [get]
func (u *LangController) GetAdminLangOptions(ctx *gin.Context) {
	handler.HandleResponse(ctx, nil, translator.LanguageOptions)
}

// GetUserLangOptions Get language options
// @Summary Get language options
// @Description Get language options
// @Tags Lang
// @Produce json
// @Success 200 {object} handler.RespBody{}
// @Router /answer/api/v1/language/options [get]
func (u *LangController) GetUserLangOptions(ctx *gin.Context) {
	siteInterfaceResp, err := u.siteInfoService.GetSiteInterface(ctx)
	if err != nil {
		handler.HandleResponse(ctx, err, nil)
		return
	}

	options := translator.LanguageOptions
	if len(siteInterfaceResp.Language) > 0 {
		defaultOption := []*translator.LangOption{
			{Label: translator.DefaultLangOption, Value: translator.DefaultLangOption},
		}
		options = append(defaultOption, options...)
	}
	handler.HandleResponse(ctx, nil, options)
}