// SiYuan - Build Your Eternal Digital Garden
// Copyright (c) 2020-present, b3log.org
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package api

import (
	"fmt"
	"net/http"
	"strings"

	"github.com/88250/gulu"
	"github.com/gin-gonic/gin"
	"github.com/siyuan-note/siyuan/kernel/conf"
	"github.com/siyuan-note/siyuan/kernel/model"
	"github.com/siyuan-note/siyuan/kernel/sql"
	"github.com/siyuan-note/siyuan/kernel/util"
)

func setAccount(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	account := &conf.Account{}
	if err = gulu.JSON.UnmarshalJSON(param, account); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	model.Conf.Account = account
	model.Conf.Save()

	ret.Data = model.Conf.Account
}

func setEditor(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	oldGenerateHistoryInterval := model.Conf.Editor.GenerateHistoryInterval

	editor := conf.NewEditor()
	if err = gulu.JSON.UnmarshalJSON(param, editor); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	if "" == editor.PlantUMLServePath {
		editor.PlantUMLServePath = "https://www.plantuml.com/plantuml/svg/~1"
	}

	model.Conf.Editor = editor
	model.Conf.Save()

	if oldGenerateHistoryInterval != model.Conf.Editor.GenerateHistoryInterval {
		model.ChangeHistoryTick(editor.GenerateHistoryInterval)
	}

	ret.Data = model.Conf.Editor
}

func setExport(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	export := &conf.Export{}
	if err = gulu.JSON.UnmarshalJSON(param, export); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		ret.Data = map[string]interface{}{"closeTimeout": 5000}
		return
	}

	if "" != export.PandocBin {
		if !util.IsValidPandocBin(export.PandocBin) {
			ret.Code = -1
			ret.Msg = fmt.Sprintf(model.Conf.Language(117), export.PandocBin)
			ret.Data = map[string]interface{}{"closeTimeout": 5000}
			return
		}
	}

	model.Conf.Export = export
	model.Conf.Save()

	ret.Data = model.Conf.Export
}

func setFiletree(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	fileTree := &conf.FileTree{}
	if err = gulu.JSON.UnmarshalJSON(param, fileTree); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	fileTree.RefCreateSavePath = strings.TrimSpace(fileTree.RefCreateSavePath)
	if "" != fileTree.RefCreateSavePath {
		if !strings.HasSuffix(fileTree.RefCreateSavePath, "/") {
			fileTree.RefCreateSavePath += "/"
		}
	}

	model.Conf.FileTree = fileTree
	model.Conf.Save()

	ret.Data = model.Conf.FileTree
}

func setSearch(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	s := &conf.Search{}
	if err = gulu.JSON.UnmarshalJSON(param, s); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	if 1 > s.Limit {
		s.Limit = 32
	}

	model.Conf.Search = s
	model.Conf.Save()
	sql.SetCaseSensitive(s.CaseSensitive)
	sql.ClearVirtualRefKeywords()
	ret.Data = s
}

func setKeymap(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg["data"])
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	keymap := &conf.Keymap{}
	if err = gulu.JSON.UnmarshalJSON(param, keymap); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	model.Conf.Keymap = keymap
	model.Conf.Save()
}

func setAppearance(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	param, err := gulu.JSON.MarshalJSON(arg)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	appearance := &conf.Appearance{}
	if err = gulu.JSON.UnmarshalJSON(param, appearance); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	model.Conf.Appearance = appearance
	model.Conf.Lang = appearance.Lang
	model.Conf.Save()
	model.InitAppearance()

	ret.Data = model.Conf.Appearance
}

func getCloudUser(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	t := arg["token"]
	var token string
	if nil != t {
		token = t.(string)
	}
	if err := model.RefreshUser(token); nil != err {
		ret.Code = 1
		ret.Msg = err.Error()
		return
	}
	ret.Data = model.Conf.User
}

func logoutCloudUser(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	model.LogoutUser()
}

func login2faCloudUser(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	token := arg["token"].(string)
	code := arg["code"].(string)
	data, err := model.Login2fa(token, code)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}
	ret.Data = data
}

func getCustomCSS(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	themeName := arg["theme"].(string)
	customCSS, err := model.ReadCustomCSS(themeName)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}
	ret.Data = customCSS
}

func setCustomCSS(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	themeName := arg["theme"].(string)
	css := arg["css"].(map[string]interface{})
	if err := model.WriteCustomCSS(themeName, css); nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}
}

func setEmoji(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	argEmoji := arg["emoji"].([]interface{})
	var emoji []string
	for _, ae := range argEmoji {
		emoji = append(emoji, ae.(string))
	}

	model.Conf.Editor.Emoji = emoji
}

func setSearchCaseSensitive(c *gin.Context) {
	ret := gulu.Ret.NewResult()
	defer c.JSON(http.StatusOK, ret)

	arg, ok := util.JsonArg(c, ret)
	if !ok {
		return
	}

	caseSensitive := arg["caseSensitive"].(bool)
	model.Conf.Search.CaseSensitive = caseSensitive
	model.Conf.Save()
	sql.SetCaseSensitive(caseSensitive)
}