Fearure:

- 增加收件箱功能（有BUG）
- 增加已发送|草稿箱|发送历史 本地记录

main.go

@@ -74,6 +74,12 @@ var rootCmd = &cobra.Command{
 	Short: "Send emails from your terminal",
 	Long:  `Pop is a tool for sending emails from your terminal.`,
 	RunE: func(cmd *cobra.Command, args []string) error {
+		if !configExists() && smtpUsername == "" && smtpPassword == "" && resendAPIKey == "" {
+			if err := runOnboarding(); err != nil {
+				return err
+			}
+		}
+
 		var deliveryMethod DeliveryMethod
 		switch {
 		case resendAPIKey != "" && smtpUsername != "" && smtpPassword != "":
@@ -89,11 +95,11 @@ var rootCmd = &cobra.Command{
 
 		switch deliveryMethod {
 		case None:
-			fmt.Printf("\n  %s %s %s\n\n", errorHeaderStyle.String(), inlineCodeStyle.Render(ResendAPIKey), "environment variable is required.")
-			fmt.Printf("  %s %s\n\n", commentStyle.Render("You can grab one at"), linkStyle.Render("https://resend.com/api-keys"))
+			fmt.Printf("\n  %s 未找到邮件配置\n\n", errorHeaderStyle.String())
+			fmt.Printf("  %s 请运行 %s 进行首次配置\n\n", commentStyle.Render("提示:"), inlineCodeStyle.Render("pop --config"))
 			cmd.SilenceUsage = true
 			cmd.SilenceErrors = true
-			return errors.New("missing required environment variable")
+			return errors.New("missing mail configuration")
 		case Unknown:
 			fmt.Printf("\n  %s Unknown delivery method.\n", errorHeaderStyle.String())
 			fmt.Printf("\n  You have set both %s and %s delivery methods.", inlineCodeStyle.Render(ResendAPIKey), inlineCodeStyle.Render("POP_SMPT_*"))
@@ -196,39 +202,112 @@ var ManCmd = &cobra.Command{
 func init() {
 	rootCmd.AddCommand(ManCmd)
 
+	cfg, _ := loadConfig()
+
 	rootCmd.Flags().StringSliceVar(&bcc, "bcc", []string{}, "BCC recipients")
 	rootCmd.Flags().StringSliceVar(&cc, "cc", []string{}, "CC recipients")
 	rootCmd.Flags().StringSliceVarP(&attachments, "attach", "a", []string{}, "Email's attachments")
 	rootCmd.Flags().StringSliceVarP(&to, "to", "t", []string{}, "Recipients")
 	rootCmd.Flags().StringVarP(&body, "body", "b", "", "Email's contents")
 	envFrom := os.Getenv(PopFrom)
+	if envFrom == "" {
+		envFrom = cfg.From
+	}
+	from = envFrom
 	rootCmd.Flags().StringVarP(&from, "from", "f", envFrom, "Email's sender"+commentStyle.Render("($"+PopFrom+")"))
 	rootCmd.Flags().StringVarP(&subject, "subject", "s", "", "Email's subject")
 	rootCmd.Flags().BoolVar(&preview, "preview", false, "Whether to preview the email before sending")
 	envUnsafe := os.Getenv(PopUnsafeHTML) == "true"
+	if !envUnsafe {
+		envUnsafe = cfg.UnsafeHTML
+	}
 	rootCmd.Flags().BoolVarP(&unsafe, "unsafe", "u", envUnsafe, "Whether to allow unsafe HTML in the email body, also enable some extra markdown features (Experimental)")
 	envSignature := os.Getenv(PopSignature)
+	if envSignature == "" {
+		envSignature = cfg.Signature
+	}
 	rootCmd.Flags().StringVarP(&signature, "signature", "x", envSignature, "Signature to display at the end of the email."+commentStyle.Render("($"+PopSignature+")"))
 	envSMTPHost := os.Getenv(PopSMTPHost)
+	if envSMTPHost == "" {
+		envSMTPHost = cfg.SMTP.Host
+	}
+	smtpHost = envSMTPHost
 	rootCmd.Flags().StringVarP(&smtpHost, "smtp.host", "H", envSMTPHost, "Host of the SMTP server"+commentStyle.Render("($"+PopSMTPHost+")"))
 	envSMTPPort, _ := strconv.Atoi(os.Getenv(PopSMTPPort))
 	if envSMTPPort == 0 {
-		envSMTPPort = 587
+		envSMTPPort = cfg.SMTP.Port
+		if envSMTPPort == 0 {
+			envSMTPPort = 587
+		}
 	}
+	smtpPort = envSMTPPort
 	rootCmd.Flags().IntVarP(&smtpPort, "smtp.port", "P", envSMTPPort, "Port of the SMTP server"+commentStyle.Render("($"+PopSMTPPort+")"))
 	envSMTPUsername := os.Getenv(PopSMTPUsername)
+	if envSMTPUsername == "" {
+		envSMTPUsername = cfg.SMTP.Username
+	}
+	smtpUsername = envSMTPUsername
 	rootCmd.Flags().StringVarP(&smtpUsername, "smtp.username", "U", envSMTPUsername, "Username of the SMTP server"+commentStyle.Render("($"+PopSMTPUsername+")"))
 	envSMTPPassword := os.Getenv(PopSMTPPassword)
+	if envSMTPPassword == "" {
+		envSMTPPassword = cfg.SMTP.Password
+	}
+	smtpPassword = envSMTPPassword
 	rootCmd.Flags().StringVarP(&smtpPassword, "smtp.password", "p", envSMTPPassword, "Password of the SMTP server"+commentStyle.Render("($"+PopSMTPPassword+")"))
 	envSMTPEncryption := os.Getenv(PopSMTPEncryption)
+	if envSMTPEncryption == "" {
+		envSMTPEncryption = cfg.SMTP.Encryption
+		if envSMTPEncryption == "" {
+			envSMTPEncryption = "starttls"
+		}
+	}
+	smtpEncryption = envSMTPEncryption
 	rootCmd.Flags().StringVarP(&smtpEncryption, "smtp.encryption", "e", envSMTPEncryption, "Encryption type of the SMTP server (starttls, ssl, or none)"+commentStyle.Render("($"+PopSMTPEncryption+")"))
 	envInsecureSkipVerify := os.Getenv(PopSMTPInsecureSkipVerify) == "true"
+	if !envInsecureSkipVerify {
+		envInsecureSkipVerify = cfg.SMTP.InsecureSkipVerify
+	}
+	smtpInsecureSkipVerify = envInsecureSkipVerify
 	rootCmd.Flags().BoolVarP(&smtpInsecureSkipVerify, "smtp.insecure", "i", envInsecureSkipVerify, "Skip TLS verification with SMTP server"+commentStyle.Render("($"+PopSMTPInsecureSkipVerify+")"))
 	envResendAPIKey := os.Getenv(ResendAPIKey)
 	rootCmd.Flags().StringVarP(&resendAPIKey, "resend.key", "r", envResendAPIKey, "API key for the Resend.com"+commentStyle.Render("($"+ResendAPIKey+")"))
 
 	rootCmd.CompletionOptions.HiddenDefaultCmd = true
 
+	var configCmd = &cobra.Command{
+		Use:   "config",
+		Short: "配置或重新配置 Pop",
+		Long:  `打开交互式配置向导来设置或更新 Pop 的配置。`,
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runOnboarding()
+		},
+	}
+	rootCmd.AddCommand(configCmd)
+
+	var inboxCmd = &cobra.Command{
+		Use:   "inbox",
+		Short: "打开收件箱",
+		Long:  `查看配置邮箱的收件箱，显示未读邮件列表。`,
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runInbox(7)
+		},
+	}
+	inboxCmd.Flags().IntP("days", "d", 7, "显示最近几天的未读邮件")
+	rootCmd.AddCommand(inboxCmd)
+
+	var historyCmd = &cobra.Command{
+		Use:   "history",
+		Short: "查看发送历史",
+		Long:  `查看已发送或草稿邮件的历史记录。`,
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runHistory()
+		},
+	}
+	rootCmd.AddCommand(historyCmd)
+
 	if len(CommitSHA) >= 7 { //nolint:gomnd
 		vt := rootCmd.VersionTemplate()
 		rootCmd.SetVersionTemplate(vt[:len(vt)-1] + " (" + CommitSHA[0:7] + ")\n")