Fix local adult metadata and watch history removal

internal/service/media_tools.go

@@ -0,0 +1,119 @@
+package service
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+)
+
+func executableCandidates(configured, name string) []string {
+	seen := map[string]struct{}{}
+	out := make([]string, 0, 12)
+	add := func(path string) {
+		path = strings.Trim(path, `" `)
+		if path == "" {
+			return
+		}
+		if !strings.EqualFold(filepath.Ext(path), ".exe") && runtime.GOOS == "windows" && !strings.ContainsAny(path, `\/`) {
+			path += ".exe"
+		}
+		if resolved, err := exec.LookPath(path); err == nil {
+			path = resolved
+		}
+		if stat, err := os.Stat(path); err != nil || stat.IsDir() {
+			return
+		}
+		clean, err := filepath.Abs(path)
+		if err == nil {
+			path = clean
+		}
+		key := strings.ToLower(path)
+		if _, ok := seen[key]; ok {
+			return
+		}
+		seen[key] = struct{}{}
+		out = append(out, path)
+	}
+
+	if configured != "" {
+		add(configured)
+	}
+	add(name)
+
+	for _, path := range localExecutableCandidates(name) {
+		add(path)
+	}
+	return out
+}
+
+func resolveLocalExecutable(configured, name string) (string, error) {
+	for _, path := range executableCandidates(configured, name) {
+		return path, nil
+	}
+	return "", fmt.Errorf("%s not found in PATH or common local app directories", name)
+}
+
+func localExecutableCandidates(name string) []string {
+	exe := name
+	if runtime.GOOS == "windows" && !strings.HasSuffix(strings.ToLower(exe), ".exe") {
+		exe += ".exe"
+	}
+
+	out := make([]string, 0, 24)
+	add := func(path string) {
+		if path != "" {
+			out = append(out, path)
+		}
+	}
+	addGlob := func(pattern string) {
+		matches, _ := filepath.Glob(pattern)
+		out = append(out, matches...)
+	}
+
+	if wd, err := os.Getwd(); err == nil {
+		add(filepath.Join(wd, "tools", "ffmpeg", "bin", exe))
+		add(filepath.Join(wd, "bin", exe))
+	}
+	if exePath, err := os.Executable(); err == nil {
+		exeDir := filepath.Dir(exePath)
+		add(filepath.Join(exeDir, "tools", "ffmpeg", "bin", exe))
+		add(filepath.Join(exeDir, exe))
+	}
+
+	appData := os.Getenv("APPDATA")
+	localAppData := os.Getenv("LOCALAPPDATA")
+	userProfile := os.Getenv("USERPROFILE")
+	programData := os.Getenv("ProgramData")
+	programFiles := os.Getenv("ProgramFiles")
+	programFilesX86 := os.Getenv("ProgramFiles(x86)")
+
+	add(filepath.Join(appData, "bilibili", "ffmpeg", exe))
+	add(filepath.Join(userProfile, "scoop", "shims", exe))
+	add(filepath.Join(userProfile, "scoop", "apps", "ffmpeg", "current", "bin", exe))
+	add(filepath.Join(programData, "chocolatey", "bin", exe))
+	add(filepath.Join("C:\\", "ffmpeg", "bin", exe))
+	add(filepath.Join("C:\\", "tools", "ffmpeg", "bin", exe))
+	add(filepath.Join(programFiles, "ffmpeg", "bin", exe))
+	add(filepath.Join(programFilesX86, "ffmpeg", "bin", exe))
+
+	addGlob(filepath.Join(localAppData, "JianyingPro", "Apps", "*", exe))
+	addGlob(filepath.Join(localAppData, "Programs", "ffmpeg", "bin", exe))
+	addGlob(filepath.Join(localAppData, "*", "ffmpeg", "bin", exe))
+	return out
+}
+
+func commandOutput(ctx context.Context, timeout time.Duration, name string, args ...string) ([]byte, error) {
+	cmdCtx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+	cmd := exec.CommandContext(cmdCtx, name, args...)
+	out, err := cmd.CombinedOutput()
+	if cmdCtx.Err() != nil {
+		return out, cmdCtx.Err()
+	}
+	return out, err
+}