// 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 util

import (
	"log"
	"math/rand"
	"os"
	"path/filepath"
	"strings"
	"time"

	"github.com/88250/gulu"
	figure "github.com/common-nighthawk/go-figure"
	"github.com/siyuan-note/httpclient"
	"github.com/siyuan-note/logging"
)

func BootMobile(container, appDir, workspaceBaseDir, lang string) {
	IncBootProgress(3, "Booting...")
	rand.Seed(time.Now().UTC().UnixNano())
	initMime()
	initHttpClient()
	ServerPort = FixedPort
	Container = container
	UserAgent = UserAgent + " " + Container
	httpclient.SetUserAgent(UserAgent)
	Lang = lang

	WorkingDir = filepath.Join(appDir, "app")
	HomeDir = filepath.Join(workspaceBaseDir, "home")
	userHomeConfDir := filepath.Join(HomeDir, ".config", "siyuan")
	if !gulu.File.IsExist(userHomeConfDir) {
		os.MkdirAll(userHomeConfDir, 0755)
	}

	initWorkspaceDirMobile(workspaceBaseDir)

	initPathDir()
	bootBanner := figure.NewFigure("SiYuan", "", true)
	logging.LogInfof("\n" + bootBanner.String())
	logBootInfo()
}

func initWorkspaceDirMobile(workspaceBaseDir string) {
	userHomeConfDir := filepath.Join(HomeDir, ".config", "siyuan")
	workspaceConf := filepath.Join(userHomeConfDir, "workspace.json")
	if !gulu.File.IsExist(workspaceConf) {
		if err := os.MkdirAll(userHomeConfDir, 0755); nil != err && !os.IsExist(err) {
			log.Printf("create user home conf folder [%s] failed: %s", userHomeConfDir, err)
			os.Exit(ExitCodeCreateConfDirErr)
		}
	}

	defaultWorkspaceDir := filepath.Join(workspaceBaseDir, "siyuan")
	var workspacePaths []string
	if !gulu.File.IsExist(workspaceConf) {
		WorkspaceDir = defaultWorkspaceDir
		if !gulu.File.IsDir(WorkspaceDir) {
			log.Printf("use the default workspace [%s] since the specified workspace [%s] is not a dir", WorkspaceDir, defaultWorkspaceDir)
			WorkspaceDir = defaultWorkspaceDir
		}
		workspacePaths = append(workspacePaths, WorkspaceDir)
	} else {
		data, err := os.ReadFile(workspaceConf)
		if err = gulu.JSON.UnmarshalJSON(data, &workspacePaths); nil != err {
			log.Printf("unmarshal workspace conf [%s] failed: %s", workspaceConf, err)
		}

		var tmp []string
		for _, d := range workspacePaths {
			d = strings.TrimRight(d, " \t\n") // 去掉工作空间路径尾部空格 https://github.com/siyuan-note/siyuan/issues/6353
			if gulu.File.IsDir(d) {
				tmp = append(tmp, d)
			}
		}
		workspacePaths = tmp

		if 0 < len(workspacePaths) {
			WorkspaceDir = workspacePaths[len(workspacePaths)-1]
			if !gulu.File.IsDir(WorkspaceDir) {
				log.Printf("use the default workspace [%s] since the specified workspace [%s] is not a dir", defaultWorkspaceDir, WorkspaceDir)
				WorkspaceDir = defaultWorkspaceDir
			}
			workspacePaths[len(workspacePaths)-1] = WorkspaceDir
		} else {
			WorkspaceDir = defaultWorkspaceDir
			workspacePaths = append(workspacePaths, WorkspaceDir)
		}
	}

	if data, err := gulu.JSON.MarshalJSON(workspacePaths); nil == err {
		if err = os.WriteFile(workspaceConf, data, 0644); nil != err {
			log.Fatalf("write workspace conf [%s] failed: %s", workspaceConf, err)
		}
	} else {
		log.Fatalf("marshal workspace conf [%s] failed: %s", workspaceConf, err)
	}

	ConfDir = filepath.Join(WorkspaceDir, "conf")
	DataDir = filepath.Join(WorkspaceDir, "data")
	RepoDir = filepath.Join(WorkspaceDir, "repo")
	HistoryDir = filepath.Join(WorkspaceDir, "history")
	TempDir = filepath.Join(WorkspaceDir, "temp")
	osTmpDir := filepath.Join(TempDir, "os")
	os.RemoveAll(osTmpDir)
	if err := os.MkdirAll(osTmpDir, 0755); nil != err {
		log.Fatalf("create os tmp dir [%s] failed: %s", osTmpDir, err)
	}
	os.RemoveAll(filepath.Join(TempDir, "repo"))
	os.Setenv("TMPDIR", osTmpDir)
	os.Setenv("TEMP", osTmpDir)
	os.Setenv("TMP", osTmpDir)
	DBPath = filepath.Join(TempDir, DBName)
	HistoryDBPath = filepath.Join(TempDir, "history.db")
	BlockTreePath = filepath.Join(TempDir, "blocktree.msgpack")
	SnippetsPath = filepath.Join(DataDir, "snippets")

	AppearancePath = filepath.Join(ConfDir, "appearance")
	ThemesPath = filepath.Join(AppearancePath, "themes")
	IconsPath = filepath.Join(AppearancePath, "icons")

	LogPath = filepath.Join(TempDir, "siyuan.log")
	logging.SetLogPath(LogPath)
}