package main

import (
	"bytes"
	"context"
	"database/sql"
	"errors"
	"fmt"
	"io"
	"os"
	"path/filepath"
	"strings"
	"sync"
	"sync/atomic"
	"time"
	"view/platform"
	"view/service"

	"github.com/wailsapp/wails/v3/pkg/application"
	"github.com/wailsapp/wails/v3/pkg/services/notifications"
)

type App struct {
	ctx           context.Context
	store         *Store
	bootstrapFile string
	bootstrap     BootstrapStatus
	mu            sync.Mutex
	tasks         map[string]context.CancelFunc
	taskResults   map[string]string
	aiStreams     map[int64]context.CancelFunc
	shell         *shellState
	notifier      *notifications.NotificationService
	syncing       atomic.Bool
	syncOnline    atomic.Bool
	syncMu        sync.Mutex
	syncLastErr   string
	// 全局文件存储配置的实时读取缓存（见 filestorage.go currentFileStorage）。
	fsMu    sync.Mutex
	fsCfg   FileStorageConfig
	fsCfgAt time.Time
	// 管理员敏感操作二次验证（内存，进程内有效）
	stepupMu    sync.Mutex
	stepupToken string
	stepupExp   time.Time
}

func NewApp() *App {
	return &App{tasks: map[string]context.CancelFunc{}, taskResults: map[string]string{}, aiStreams: map[int64]context.CancelFunc{}}
}

// emit 向前端广播事件；纯测试环境（无 Wails 应用实例）下静默忽略。
func (a *App) emit(name string, data any) {
	if app := application.Get(); app != nil {
		app.Event.Emit(name, data)
	}
}

// ServiceStartup 由 Wails v3 在应用启动时调用，执行数据库引导流程。
func (a *App) ServiceStartup(ctx context.Context, _ application.ServiceOptions) error {
	a.startup(ctx)
	a.RefreshShell()
	go a.runAutoUpdateLoop()
	go a.runAppUpdateLoop()
	go a.runReminderLoop()
	go a.runSyncLoop()
	go a.runTeamDigestLoop()
	go a.runActivityPingLoop()
	return nil
}

// ServiceShutdown 由 Wails v3 在应用退出时调用。
func (a *App) ServiceShutdown() error {
	a.shutdown(context.Background())
	return nil
}

func (a *App) startup(ctx context.Context) {
	a.ctx = ctx
	defaultPath, e := defaultDBPath()
	if e != nil {
		a.bootstrap = BootstrapStatus{State: BootstrapRecovery, ErrorCode: "DB_DEFAULT_PATH_FAILED", ErrorDetail: e.Error()}
		return
	}
	a.bootstrapFile, e = bootstrapPath()
	if e != nil {
		a.bootstrap = BootstrapStatus{State: BootstrapRecovery, DefaultPath: defaultPath, ErrorCode: "BOOTSTRAP_PATH_FAILED", ErrorDetail: e.Error()}
		return
	}
	c, e := readBootstrap(a.bootstrapFile)
	if e != nil {
		if os.IsNotExist(e) {
			if _, se := os.Stat(defaultPath); se == nil {
				c = BootstrapConfig{DatabasePath: defaultPath, Initialized: true}
				_ = writeBootstrap(a.bootstrapFile, c)
			} else {
				a.bootstrap = BootstrapStatus{State: BootstrapSetup, DefaultPath: defaultPath, DatabasePath: defaultPath}
				return
			}
		} else {
			a.bootstrap = BootstrapStatus{State: BootstrapRecovery, DefaultPath: defaultPath, DatabasePath: defaultPath, ErrorCode: "BOOTSTRAP_INVALID", ErrorDetail: e.Error()}
			return
		}
	}
	if _, e = os.Stat(c.DatabasePath); e != nil {
		code := "DB_FILE_UNREADABLE"
		if os.IsNotExist(e) {
			code = "DB_FILE_MISSING"
		}
		a.bootstrap = BootstrapStatus{State: BootstrapRecovery, DefaultPath: defaultPath, DatabasePath: c.DatabasePath, ErrorCode: code, ErrorDetail: e.Error()}
		return
	}
	s, e := OpenStore(c.DatabasePath)
	if e != nil {
		a.bootstrap = bootstrapFailure(defaultPath, c.DatabasePath, e)
		return
	}
	a.store = s
	a.bootstrap = BootstrapStatus{State: BootstrapReady, DefaultPath: defaultPath, DatabasePath: c.DatabasePath}
	a.applyPackagedSyncConfig()
	a.store.Log("info", "系统", "应用程序启动", "")
	a.store.Log("info", "数据库", "桌面运行时已连接", s.path)
}

func (a *App) GetBootstrapStatus() BootstrapStatus { return a.bootstrap }
func (a *App) SelectInitialDatabaseFile(defaultPath string) (string, error) {
	if strings.TrimSpace(defaultPath) == "" {
		defaultPath = a.bootstrap.DefaultPath
	}
	return application.Get().Dialog.SaveFile().
		SetMessage("Initialize 年糕崽崽 PMS database").
		SetDirectory(filepath.Dir(defaultPath)).
		SetFilename(filepath.Base(defaultPath)).
		AddFilter("SQLite Database", "*.db").
		PromptForSingleSelection()
}
func (a *App) InitializeDatabase(path string) (BootstrapStatus, error) {
	a.mu.Lock()
	defer a.mu.Unlock()
	s, e := createValidatedStore(path)
	if e != nil {
		a.bootstrap = bootstrapFailure(a.bootstrap.DefaultPath, path, e)
		return a.bootstrap, e
	}
	if a.store != nil {
		_ = a.store.db.Close()
	}
	a.store = s
	if e = writeBootstrap(a.bootstrapFile, BootstrapConfig{DatabasePath: s.path, Initialized: true}); e != nil {
		_ = s.db.Close()
		a.store = nil
		a.bootstrap = bootstrapFailure(a.bootstrap.DefaultPath, path, coded("BOOTSTRAP_WRITE_FAILED", e))
		return a.bootstrap, e
	}
	a.bootstrap = BootstrapStatus{State: BootstrapReady, DefaultPath: a.bootstrap.DefaultPath, DatabasePath: s.path}
	a.applyPackagedSyncConfig()
	a.store.Log("info", "数据库", "数据库初始化成功", s.path)
	return a.bootstrap, nil
}
func (a *App) RetryDatabase() (BootstrapStatus, error) {
	return a.InitializeDatabase(a.bootstrap.DatabasePath)
}
func (a *App) shutdown(context.Context) {
	if a.store != nil && a.store.db != nil {
		_ = a.store.db.Close()
	}
}
func (a *App) ready() error {
	if a.store == nil {
		return errors.New("DATABASE_NOT_READY")
	}
	return nil
}
func (a *App) SelectDirectory() (string, error) {
	if e := a.ready(); e != nil {
		return "", e
	}
	return application.Get().Dialog.OpenFile().
		SetTitle(a.localized("选择代码目录", "Select code directory")).
		CanChooseDirectories(true).
		CanChooseFiles(false).
		CanCreateDirectories(true).
		PromptForSingleSelection()
}

// ListWSLDistros 返回本机可用的 WSL 发行版，供前端创建 UNC 项目路径。
func (a *App) ListWSLDistros() ([]string, error) { return platform.ListWSLDistros(a.ctx) }

// SelectWSLDirectory 从指定发行版根目录打开原生目录选择器。
func (a *App) SelectWSLDirectory(distro string) (string, error) {
	if strings.TrimSpace(distro) == "" {
		return "", errors.New("WSL_DISTRO_REQUIRED")
	}
	root := "\\\\wsl.localhost\\" + distro + "\\"
	return application.Get().Dialog.OpenFile().
		SetTitle(a.localized("选择 WSL 代码目录", "Select WSL code directory")).
		SetDirectory(root).
		CanChooseDirectories(true).
		CanChooseFiles(false).
		PromptForSingleSelection()
}

func (a *App) localized(zh, en string) string {
	if a.store != nil {
		if s, e := a.store.Settings(); e == nil && s.Locale == "en" {
			return en
		}
	}
	return zh
}
func (a *App) SelectDatabaseFile() (string, error) {
	return application.Get().Dialog.SaveFile().
		SetMessage("Select database location").
		SetFilename("code-count.db").
		AddFilter("SQLite Database", "*.db").
		PromptForSingleSelection()
}
func (a *App) ListProjects() ([]Project, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.ListProjects(0)
}
func (a *App) ListProjectsByGroup(groupID int64) ([]Project, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.ListProjects(groupID)
}
func (a *App) ListProjectGroups() ([]ProjectGroup, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.ListProjectGroups()
}
func (a *App) SaveProjectGroup(id int64, name string) (ProjectGroup, error) {
	if e := a.ready(); e != nil {
		return ProjectGroup{}, e
	}
	g, e := a.store.SaveProjectGroup(id, name)
	if e == nil {
		a.store.Log("info", "project", "Project group saved", g.Name)
	}
	return g, e
}
func (a *App) DeleteProjectGroup(id int64) error {
	if e := a.ready(); e != nil {
		return e
	}
	e := a.store.DeleteProjectGroup(id)
	if e == nil {
		a.store.Log("info", "project", "Project group deleted", fmt.Sprint(id))
	}
	return e
}
func (a *App) GetProject(id int64) (Project, error) {
	if e := a.ready(); e != nil {
		return Project{}, e
	}
	return a.store.GetProject(id)
}
func (a *App) SaveProject(id int64, in ProjectInput) (Project, error) {
	if e := a.ready(); e != nil {
		return Project{}, e
	}
	p, e := a.store.SaveProject(id, in)
	if e == nil {
		a.store.Log("info", "项目", "项目保存成功", p.Path)
		a.RefreshShell() // 托盘「打开项目」子菜单跟随项目列表
	} else {
		a.store.Log("error", "项目", "项目保存失败", in.Path+" | "+e.Error())
	}
	return p, e
}

func (a *App) ReportClientError(category, message, detail string) {
	if a.store != nil {
		a.store.Log("error", category, message, detail)
	}
}
func (a *App) DeleteProject(id int64) error {
	if e := a.ready(); e != nil {
		return e
	}
	e := a.store.DeleteProject(id)
	if e == nil {
		a.store.Log("info", "项目", "项目删除成功", fmt.Sprint(id))
		a.RefreshShell() // 托盘「打开项目」子菜单跟随项目列表
	}
	return e
}
func (a *App) GetDashboard() (Dashboard, error) {
	if e := a.ready(); e != nil {
		return Dashboard{}, e
	}
	return a.store.Dashboard(0)
}
func (a *App) GetDashboardByGroup(groupID int64) (Dashboard, error) {
	if e := a.ready(); e != nil {
		return Dashboard{}, e
	}
	return a.store.Dashboard(groupID)
}
func (a *App) GetStructure(id int64) (StructureStats, error) {
	if e := a.ready(); e != nil {
		return StructureStats{}, e
	}
	return a.store.Structure(id)
}

func (a *App) GetProjectInsights(id int64) (ProjectInsights, error) {
	if e := a.ready(); e != nil {
		return ProjectInsights{}, e
	}
	x, e := a.store.Insights(id)
	if e == nil {
		return x, nil
	}
	if errors.Is(e, sql.ErrNoRows) {
		return a.RefreshProjectInsights(id)
	}
	return ProjectInsights{}, e
}

func (a *App) RefreshProjectInsights(id int64) (ProjectInsights, error) {
	if e := a.ready(); e != nil {
		return ProjectInsights{}, e
	}
	p, e := a.store.GetProject(id)
	if e != nil {
		return ProjectInsights{}, e
	}
	structure, e := a.store.Structure(id)
	if e != nil {
		return ProjectInsights{}, e
	}
	git, _ := a.store.GitStats(id)
	x, e := (service.InsightService{}).Analyze(a.ctx, p, structure, git)
	if e != nil {
		a.store.Log("error", "项目检查", "深度检查失败", p.Name+" | "+e.Error())
		return x, e
	}
	if e = a.store.ReplaceInsights(id, x); e != nil {
		a.store.Log("error", "项目检查", "保存检查结果失败", p.Name+" | "+e.Error())
		return x, e
	}
	a.store.Log("info", "项目检查", "深度检查完成", fmt.Sprintf("%s | %d 分 | %d 个问题", p.Name, x.HealthScore, len(x.Issues)))
	return x, nil
}

func (a *App) GetGitStats(id int64) (GitStats, error) {
	if e := a.ready(); e != nil {
		return GitStats{}, e
	}
	return a.store.GitStats(id)
}

// GetGitDiagnostics 分步检查 Git/WSL 状态，用于解释 Git 统计为空或失败的原因。
func (a *App) GetGitDiagnostics(id int64) (GitDiagnostics, error) {
	if e := a.ready(); e != nil {
		return GitDiagnostics{}, e
	}
	p, e := a.store.GetProject(id)
	if e != nil {
		return GitDiagnostics{}, e
	}
	d := (GitAnalyzer{}).Diagnostics(a.ctx, p.Path, "")
	if d.Available {
		a.store.Log("info", "Git分析", "Git 诊断完成", p.Name+" | "+d.WorkspaceBranch)
	} else {
		a.store.Log("warning", "Git分析", "Git 诊断失败", p.Name+" | "+d.ErrorCode+" | "+d.Detail)
	}
	return d, nil
}

// GetGitStatsForRef 只改变统计视图，不执行 checkout。
func (a *App) GetGitStatsForRef(id int64, ref string) (GitStats, error) {
	if e := a.ready(); e != nil {
		return GitStats{}, e
	}
	p, e := a.store.GetProject(id)
	if e != nil {
		return GitStats{}, e
	}
	a.store.Log("info", "Git分析", "查询分支统计", p.Name+" | "+ref)
	g, e := (GitAnalyzer{}).AnalyzeRef(a.ctx, p.Path, ref)
	if e != nil {
		a.store.Log("error", "Git分析", "查询分支统计失败", e.Error())
	}
	return g, e
}

// GetCommitDetails 按需查询提交涉及的文件，避免 Git 首页一次加载所有明细。
func (a *App) GetCommitDetails(id int64, hash string) (GitCommitDetail, error) {
	if e := a.ready(); e != nil {
		return GitCommitDetail{}, e
	}
	p, e := a.store.GetProject(id)
	if e != nil {
		return GitCommitDetail{}, e
	}
	return (GitAnalyzer{}).CommitDetail(a.ctx, p.Path, hash)
}

// CheckoutBranch 安全切换工作区分支；服务层会拒绝任何脏工作区。
func (a *App) CheckoutBranch(id int64, ref string) (CheckoutResult, error) {
	if e := a.ready(); e != nil {
		return CheckoutResult{}, e
	}
	p, e := a.store.GetProject(id)
	if e != nil {
		return CheckoutResult{}, e
	}
	result, e := (GitAnalyzer{}).CheckoutBranch(a.ctx, p.Path, ref)
	if e != nil {
		a.store.Log("error", "Git分析", "切换分支失败", p.Name+" | "+ref+" | "+e.Error())
		return result, e
	}
	a.store.Log("info", "Git分析", "切换分支成功", p.Name+" | "+result.Branch)
	return result, nil
}
func (a *App) GetRules() ([]ExclusionRule, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.Rules()
}
func (a *App) AddRule(pattern, category string) (ExclusionRule, error) {
	if e := a.ready(); e != nil {
		return ExclusionRule{}, e
	}
	return a.store.AddRule(pattern, category)
}
func (a *App) DeleteRule(id int64) error {
	if e := a.ready(); e != nil {
		return e
	}
	return a.store.DeleteRule(id)
}
func (a *App) GetLogs(level string) ([]LogEntry, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.Logs(level)
}
func (a *App) SearchLogs(query, level, category string, offset, limit int64) (LogPage, error) {
	if e := a.ready(); e != nil {
		return LogPage{}, e
	}
	return a.store.SearchLogs(query, level, category, offset, limit)
}
func (a *App) GetLogCategories() ([]string, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	return a.store.LogCategories()
}

// previewMaxBytes 是文件预览读取上限（1MB），超出部分截断。
const previewMaxBytes = 1 << 20

// ReadProjectFile 读取项目内的相对路径文件用于预览：限制大小、检测二进制、阻止路径穿越。
func (a *App) ReadProjectFile(projectID int64, relPath string) (FilePreview, error) {
	if e := a.ready(); e != nil {
		return FilePreview{}, e
	}
	p, e := a.store.GetProject(projectID)
	if e != nil {
		return FilePreview{}, e
	}
	rel := strings.TrimSpace(relPath)
	if rel == "" {
		return FilePreview{}, errors.New("FILE_PATH_REQUIRED")
	}
	desc, e := platform.ResolvePath(p.Path)
	if e != nil {
		return FilePreview{}, e
	}
	root := desc.WindowsPath
	full := filepath.Join(root, filepath.FromSlash(rel))
	if back, e := filepath.Rel(root, full); e != nil || back == ".." || strings.HasPrefix(back, ".."+string(filepath.Separator)) {
		return FilePreview{}, errors.New("FILE_PATH_INVALID")
	}
	st, e := os.Stat(full)
	if e != nil {
		if os.IsNotExist(e) {
			return FilePreview{}, coded("FILE_NOT_FOUND", e)
		}
		return FilePreview{}, coded("FILE_READ_FAILED", e)
	}
	if st.IsDir() {
		return FilePreview{}, errors.New("FILE_IS_DIRECTORY")
	}
	out := FilePreview{Path: filepath.ToSlash(rel), Name: st.Name(), Extension: strings.ToLower(filepath.Ext(st.Name())), Size: st.Size()}
	f, e := os.Open(full)
	if e != nil {
		return out, coded("FILE_READ_FAILED", e)
	}
	defer f.Close()
	buf := make([]byte, min(st.Size(), previewMaxBytes))
	n, e := io.ReadFull(f, buf)
	if e != nil && !errors.Is(e, io.ErrUnexpectedEOF) && !errors.Is(e, io.EOF) {
		return out, coded("FILE_READ_FAILED", e)
	}
	buf = buf[:n]
	out.Truncated = st.Size() > previewMaxBytes
	probe := buf
	if len(probe) > 8192 {
		probe = probe[:8192]
	}
	if bytes.IndexByte(probe, 0) >= 0 {
		out.Binary = true
		return out, nil
	}
	out.Content = string(buf)
	if out.Content != "" {
		out.Lines = strings.Count(out.Content, "\n") + 1
	}
	return out, nil
}
func (a *App) ClearLogs() error {
	if e := a.ready(); e != nil {
		return e
	}
	return a.store.ClearLogs()
}
func (a *App) GetSettings() (AppSettings, error) {
	if e := a.ready(); e != nil {
		return AppSettings{}, e
	}
	return a.store.Settings()
}
func (a *App) SaveSettings(x AppSettings) error {
	if e := a.ready(); e != nil {
		return e
	}
	if e := a.store.SaveSettings(x); e != nil {
		return e
	}
	a.RefreshShell()
	return nil
}
func (a *App) ClearData(mode string, projectID int64) error {
	if e := a.ready(); e != nil {
		return e
	}
	e := a.store.ClearData(mode, projectID)
	if e == nil {
		a.RefreshShell() // 托盘「打开项目」子菜单跟随项目列表
	}
	return e
}

// MigrateDatabase 仅把本机 SQLite 文件搬到新路径并切换连接。
// 不做任何 schema DDL；云端 MySQL 建表/升级只允许通过仓库根目录 init.sql（或 tools/applyinit）执行。
func (a *App) MigrateDatabase(target string) error {
	if e := a.ready(); e != nil {
		return e
	}
	if target == "" {
		return errors.New("PATH_REQUIRED")
	}
	target = filepath.Clean(target)
	if target == a.store.path {
		return nil
	}
	if e := os.MkdirAll(filepath.Dir(target), 0755); e != nil {
		return e
	}
	tmp := target + ".tmp"
	_ = os.Remove(tmp)
	_, _ = a.store.db.Exec(`PRAGMA wal_checkpoint(FULL)`)
	src, e := os.Open(a.store.path)
	if e != nil {
		return e
	}
	defer src.Close()
	dst, e := os.Create(tmp)
	if e != nil {
		return e
	}
	if _, e = dst.ReadFrom(src); e != nil {
		dst.Close()
		os.Remove(tmp)
		return e
	}
	_ = dst.Sync()
	dst.Close()
	check, e := OpenStore(tmp)
	if e != nil {
		os.Remove(tmp)
		return e
	}
	var result string
	e = check.db.QueryRow(`PRAGMA integrity_check`).Scan(&result)
	check.db.Close()
	if e != nil || result != "ok" {
		os.Remove(tmp)
		return errors.New("DATABASE_INTEGRITY_FAILED")
	}
	if e = os.Rename(tmp, target); e != nil {
		return e
	}
	next, e := OpenStore(target)
	if e != nil {
		return e
	}
	old := a.store
	a.store = next
	_ = old.db.Close()
	if e = writeBootstrap(a.bootstrapFile, BootstrapConfig{DatabasePath: target, Initialized: true}); e != nil {
		return coded("BOOTSTRAP_WRITE_FAILED", e)
	}
	a.bootstrap = BootstrapStatus{State: BootstrapReady, DefaultPath: a.bootstrap.DefaultPath, DatabasePath: target}
	a.applyPackagedSyncConfig()
	a.store.Log("info", "数据库", "数据库迁移成功", target)
	return nil
}

func (a *App) StartAnalysis(projectID int64, kind string) (string, error) {
	if e := a.ready(); e != nil {
		return "", e
	}
	p, e := a.store.GetProject(projectID)
	if e != nil {
		return "", e
	}
	taskID := fmt.Sprintf("%d-%s", projectID, kind)
	a.mu.Lock()
	if _, ok := a.tasks[taskID]; ok {
		a.mu.Unlock()
		return "", errors.New("TASK_ALREADY_RUNNING")
	}
	ctx, cancel := context.WithCancel(a.ctx)
	a.tasks[taskID] = cancel
	a.mu.Unlock()
	go func() {
		finalStage := "completed"
		defer func() {
			if recovered := recover(); recovered != nil {
				detail := fmt.Sprintf("%v", recovered)
				finalStage = "error"
				a.store.Log("error", "代码分析", "后台分析异常", p.Name+" | "+detail)
				a.emit("analysis:progress", TaskEvent{TaskID: taskID, ProjectID: projectID, Stage: "error", Progress: 100, MessageKey: "task.failed", Params: map[string]any{"project": p.Name}})
			}
			a.mu.Lock()
			if a.taskResults != nil {
				a.taskResults[taskID] = finalStage
			}
			delete(a.tasks, taskID)
			a.mu.Unlock()
		}()
		emit := func(stage string, progress int, messageKey string) {
			a.emit("analysis:progress", TaskEvent{TaskID: taskID, ProjectID: projectID, Stage: stage, Progress: progress, MessageKey: messageKey, Params: map[string]any{"project": p.Name}})
		}
		emit("start", 2, "task.start")
		a.store.Log("info", "代码分析", "开始分析项目", p.Name)
		var err error
		if kind == "all" || kind == "code" {
			rules, _ := a.store.Rules()
			var ls []LanguageStat
			var fs []FileEntry
			ls, fs, err = (Scanner{}).Analyze(ctx, p.Path, rules, func(n int, s string) { emit(s, n, s) })
			if err == nil {
				err = a.store.ReplaceScan(projectID, ls, fs)
			}
		}
		if err == nil && (kind == "all" || kind == "git") {
			emit("git", 80, "task.git")
			scopeAll := false
			if st, se := a.store.Settings(); se == nil && st.GitScope == "all" {
				scopeAll = true
			}
			var g GitStats
			var incremental bool
			g, incremental, err = (GitAnalyzer{}).AnalyzeWithOptions(ctx, p.Path, service.GitAnalyzeOptions{
				AllBranches: scopeAll,
				SinceHash:   a.store.LatestCommitHash(projectID),
			})
			if err == nil {
				if incremental {
					err = a.store.MergeGit(projectID, g)
					a.store.Log("info", "Git分析", "增量分析完成", fmt.Sprintf("%s | 新增 %d 个提交", p.Name, len(g.Commits)))
				} else {
					err = a.store.ReplaceGit(projectID, g)
				}
			} else if kind == "all" && (err.Error() == "NOT_GIT_REPOSITORY" || err.Error() == "GIT_NOT_INSTALLED") {
				a.store.Log("warning", "Git分析", "已跳过 Git 分析", err.Error())
				err = nil
			}
		}
		if err != nil {
			level, stage := "error", "error"
			if errors.Is(err, context.Canceled) {
				level, stage = "warning", "cancelled"
			}
			finalStage = stage
			a.store.Log(level, "代码分析", "项目分析失败", p.Name+" | "+err.Error())
			emit(stage, 100, "task.failed")
			return
		}
		a.store.Log("info", "代码分析", "项目分析完成", p.Name)
		emit("completed", 100, "task.completed")
		// 数据就绪后异步生成各模块的 AI 分析（未配置 Key 时静默跳过）。
		// 代码数据变化会使洞察过期，先重算再交给 AI 解读。
		switch kind {
		case "code":
			go func() {
				a.RefreshProjectInsights(projectID)
				a.generateAISummaries(projectID, "project", "structure", "insights")
			}()
		case "git":
			go a.generateAISummaries(projectID, "git")
		default:
			go func() {
				a.RefreshProjectInsights(projectID)
				a.generateAISummaries(projectID, "project", "git", "structure", "insights")
			}()
		}
	}()
	return taskID, nil
}
func (a *App) CancelAnalysis(taskID string) error {
	a.mu.Lock()
	defer a.mu.Unlock()
	if c, ok := a.tasks[taskID]; ok {
		c()
		return nil
	}
	return errors.New("TASK_NOT_FOUND")
}
func (a *App) StartBatchAnalysis() ([]string, error) {
	return a.StartBatchAnalysisByGroup(0)
}
func (a *App) StartBatchAnalysisByGroup(groupID int64) ([]string, error) {
	if e := a.ready(); e != nil {
		return nil, e
	}
	ps, e := a.store.ListProjects(groupID)
	if e != nil {
		return nil, e
	}
	ids := make([]string, 0, len(ps))
	for _, p := range ps {
		ids = append(ids, fmt.Sprintf("%d-all", p.ID))
	}
	go func() {
		summary := BatchSummary{Total: len(ps), Failures: []string{}}
		for _, p := range ps {
			tid, e := a.StartAnalysis(p.ID, "all")
			if e != nil {
				summary.Failed++
				summary.Failures = append(summary.Failures, p.Name+": "+e.Error())
				continue
			}
			for {
				a.mu.Lock()
				_, running := a.tasks[tid]
				a.mu.Unlock()
				if !running {
					break
				}
				select {
				case <-a.ctx.Done():
					return
				case <-time.After(100 * time.Millisecond):
				}
			}
			a.mu.Lock()
			result := a.taskResults[tid]
			delete(a.taskResults, tid)
			a.mu.Unlock()
			switch result {
			case "cancelled":
				summary.Cancelled++
			case "error":
				summary.Failed++
				summary.Failures = append(summary.Failures, p.Name)
			default:
				summary.Completed++
			}
		}
		a.store.Log("info", "代码分析", "批量统计完成",
			fmt.Sprintf("共 %d 个 | 成功 %d | 失败 %d | 取消 %d | %s", summary.Total, summary.Completed, summary.Failed, summary.Cancelled, strings.Join(summary.Failures, "；")))
		a.emit("batch:done", summary)
		a.notifyBatchDone(summary)
	}()
	return ids, nil
}

// notifyBatchDone 将批量统计结果写入消息中心，失败时附系统通知。
func (a *App) notifyBatchDone(s BatchSummary) {
	locale := "zh-CN"
	if st, e := a.store.Settings(); e == nil {
		locale = st.Locale
	}
	title := "批量统计完成"
	body := fmt.Sprintf("共 %d 个项目：成功 %d，失败 %d，取消 %d", s.Total, s.Completed, s.Failed, s.Cancelled)
	if locale == "en" {
		title = "Batch analysis finished"
		body = fmt.Sprintf("%d projects: %d succeeded, %d failed, %d cancelled", s.Total, s.Completed, s.Failed, s.Cancelled)
	}
	if len(s.Failures) > 0 {
		sep := "；失败："
		if locale == "en" {
			sep = "; failed: "
		}
		body += sep + strings.Join(s.Failures, ", ")
	}
	a.pushMessage("analysis", title, body, "", 0, s.Failed > 0)
}