package logger
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import (
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"fmt"
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"os"
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"path/filepath"
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"sync"
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"time"
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"voicesnap/internal/paths"
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)
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var (
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mu sync.Mutex
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logFile *os.File
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)
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// Init initializes the file logger in the persistent app data directory.
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func Init() {
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dir := paths.AppSupportDir()
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if err := os.MkdirAll(dir, 0755); err != nil {
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fmt.Fprintf(os.Stderr, "failed to create log dir: %v\n", err)
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return
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}
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path := filepath.Join(dir, "app.log")
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f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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fmt.Fprintf(os.Stderr, "failed to open log file: %v\n", err)
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return
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}
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logFile = f
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}
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func write(level, format string, args ...interface{}) {
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msg := fmt.Sprintf(format, args...)
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ts := time.Now().Format("2006-01-02 15:04:05")
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line := fmt.Sprintf("[%s] %s %s\n", ts, level, msg)
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mu.Lock()
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defer mu.Unlock()
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if logFile != nil {
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logFile.WriteString(line)
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}
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fmt.Fprint(os.Stderr, line)
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}
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// Info logs an informational message.
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func Info(format string, args ...interface{}) {
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write("INFO", format, args...)
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}
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// Error logs an error message.
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func Error(format string, args ...interface{}) {
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write("ERROR", format, args...)
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}
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// Close closes the log file.
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func Close() {
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mu.Lock()
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defer mu.Unlock()
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if logFile != nil {
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logFile.Close()
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logFile = nil
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}
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}
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