// 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"

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

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

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

	id := arg["id"].(string)
	timed := arg["timed"].(string) // yyyyMMddHHmmss
	err := model.SetBlockReminder(id, timed)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		ret.Data = map[string]interface{}{"closeTimeout": 7000}
		return
	}
}

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

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

	id := arg["id"].(string)
	ret.Data = sql.IsBlockFolded(id)
}

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

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

	id := arg["id"].(string)
	b, err := model.GetBlock(id)
	if filesys.ErrUnableLockFile == err {
		ret.Code = 2
		ret.Data = id
		return
	}
	ret.Data = nil != b
}

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

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

	id := arg["id"].(string)
	info := model.GetDocInfo(id)
	ret.Data = info
}

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

	blocks := model.RecentUpdatedBlocks()
	ret.Data = blocks
}

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

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

	id := arg["id"].(string)
	blockRuneCount, blockWordCount, rootBlockRuneCount, rootBlockWordCount := model.BlockWordCount(id)
	ret.Data = map[string]interface{}{
		"blockRuneCount":     blockRuneCount,
		"blockWordCount":     blockWordCount,
		"rootBlockRuneCount": rootBlockRuneCount,
		"rootBlockWordCount": rootBlockWordCount,
	}
}

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

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

	id := arg["id"].(string)
	ret.Data = model.GetBlockRefText(id)
}

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

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

	id := arg["id"].(string)
	refIDs, refTexts, defIDs := model.GetBlockRefIDs(id)
	ret.Data = map[string][]string{
		"refIDs":   refIDs,
		"refTexts": refTexts,
		"defIDs":   defIDs,
	}
}

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

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

	id := arg["id"].(string)
	refIDs, refTexts := model.GetBlockRefIDsByFileAnnotationID(id)
	ret.Data = map[string][]string{
		"refIDs":   refIDs,
		"refTexts": refTexts,
	}
}

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

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

	anchor := arg["anchor"].(string)
	excludeIDsArg := arg["excludeIDs"].([]interface{})
	var excludeIDs []string
	for _, excludeID := range excludeIDsArg {
		excludeIDs = append(excludeIDs, excludeID.(string))
	}
	excludeIDs = nil // 不限制虚拟引用搜索自己 https://ld246.com/article/1633243424177
	ids := model.GetBlockDefIDsByRefText(anchor, excludeIDs)
	ret.Data = ids
}

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

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

	id := arg["id"].(string)
	blockPath, err := model.BuildBlockBreadcrumb(id)
	if nil != err {
		ret.Code = -1
		ret.Msg = err.Error()
		return
	}

	ret.Data = blockPath
}

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

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

	id := arg["id"].(string)
	block, err := model.GetBlock(id)
	if filesys.ErrUnableLockFile == err {
		ret.Code = 2
		ret.Data = id
		return
	}
	if nil == block {
		ret.Code = 1
		ret.Msg = fmt.Sprintf(model.Conf.Language(15), id)
		return
	}

	var rootChildID string
	b := block
	for i := 0; i < 128; i++ {
		parentID := b.ParentID
		if "" == parentID {
			rootChildID = b.ID
			break
		}
		if b, _ = model.GetBlock(parentID); nil == b {
			util.LogErrorf("not found parent")
			break
		}
	}

	root, err := model.GetBlock(block.RootID)
	if filesys.ErrUnableLockFile == err {
		ret.Code = 2
		ret.Data = id
		return
	}
	rootTitle := root.IAL["title"]
	rootTitle = html.UnescapeString(rootTitle)
	ret.Data = map[string]string{
		"box":         block.Box,
		"path":        block.Path,
		"rootID":      block.RootID,
		"rootTitle":   rootTitle,
		"rootChildID": rootChildID,
		"rootIcon":    root.IAL["icon"],
	}
}

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

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

	id := arg["id"].(string)
	dom := model.GetBlockDOM(id)
	ret.Data = map[string]string{
		"id":  id,
		"dom": dom,
	}
}