himalaya 0.5.5

Command-line interface for email management
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//! Module related to message template handling.
//!
//! This module gathers all message template commands.  

use anyhow::Result;
use atty::Stream;
use imap::types::Flag;
use std::{
    convert::TryFrom,
    io::{self, BufRead},
};

use crate::{
    config::Account,
    domain::{
        imap::ImapServiceInterface,
        msg::{Msg, TplOverride},
        Flags, Mbox, SmtpServiceInterface,
    },
    output::PrinterService,
};

/// Generate a new message template.
pub fn new<'a, Printer: PrinterService>(
    opts: TplOverride<'a>,
    account: &'a Account,
    printer: &'a mut Printer,
) -> Result<()> {
    let tpl = Msg::default().to_tpl(opts, account);
    printer.print(tpl)
}

/// Generate a reply message template.
pub fn reply<'a, Printer: PrinterService, ImapService: ImapServiceInterface<'a>>(
    seq: &str,
    all: bool,
    opts: TplOverride<'a>,
    account: &'a Account,
    printer: &'a mut Printer,
    imap: &'a mut ImapService,
) -> Result<()> {
    let tpl = imap
        .find_msg(account, seq)?
        .into_reply(all, account)?
        .to_tpl(opts, account);
    printer.print(tpl)
}

/// Generate a forward message template.
pub fn forward<'a, Printer: PrinterService, ImapService: ImapServiceInterface<'a>>(
    seq: &str,
    opts: TplOverride<'a>,
    account: &'a Account,
    printer: &'a mut Printer,
    imap: &'a mut ImapService,
) -> Result<()> {
    let tpl = imap
        .find_msg(account, seq)?
        .into_forward(account)?
        .to_tpl(opts, account);
    printer.print(tpl)
}

/// Saves a message based on a template.
pub fn save<'a, Printer: PrinterService, ImapService: ImapServiceInterface<'a>>(
    mbox: &Mbox,
    account: &Account,
    attachments_paths: Vec<&str>,
    tpl: &str,
    printer: &mut Printer,
    imap: &mut ImapService,
) -> Result<()> {
    let tpl = if atty::is(Stream::Stdin) || printer.is_json() {
        tpl.replace("\r", "")
    } else {
        io::stdin()
            .lock()
            .lines()
            .filter_map(Result::ok)
            .collect::<Vec<String>>()
            .join("\n")
    };
    let msg = Msg::from_tpl(&tpl)?.add_attachments(attachments_paths)?;
    let raw_msg = msg.into_sendable_msg(account)?.formatted();
    let flags = Flags::try_from(vec![Flag::Seen])?;
    imap.append_raw_msg_with_flags(mbox, &raw_msg, flags)?;
    printer.print("Template successfully saved")
}

/// Sends a message based on a template.
pub fn send<
    'a,
    Printer: PrinterService,
    ImapService: ImapServiceInterface<'a>,
    SmtpService: SmtpServiceInterface,
>(
    mbox: &Mbox,
    account: &Account,
    attachments_paths: Vec<&str>,
    tpl: &str,
    printer: &mut Printer,
    imap: &mut ImapService,
    smtp: &mut SmtpService,
) -> Result<()> {
    let tpl = if atty::is(Stream::Stdin) || printer.is_json() {
        tpl.replace("\r", "")
    } else {
        io::stdin()
            .lock()
            .lines()
            .filter_map(Result::ok)
            .collect::<Vec<String>>()
            .join("\n")
    };
    let msg = Msg::from_tpl(&tpl)?.add_attachments(attachments_paths)?;
    let sent_msg = smtp.send_msg(account, &msg)?;
    let flags = Flags::try_from(vec![Flag::Seen])?;
    imap.append_raw_msg_with_flags(mbox, &sent_msg.formatted(), flags)?;
    printer.print("Template successfully sent")
}