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/* next.go: show upcoming messages
*
* Copyright (C) 2016-2018 Clemens Fries <github-lettersnail@xenoworld.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd
import (
"fmt"
"github.com/docopt/docopt.go"
. "github.com/githubert/lettersnail/common"
"path/filepath"
"sort"
"strconv"
"time"
)
var usageNext =
// tag::next[]
`
Usage:
lettersnail next [--days=DAYS | --all]
Options:
--help Show this help.
--days=DAYS List messages for the next DAYS days. (default: 7)
--all List all pending messages.
` // end::next[]
func Next(argv []string, conf *Configuration) {
args, _ := docopt.Parse(usageNext, argv, true, "", false)
if args["--days"] != nil {
conf.Set("days", args["--days"].(string))
}
days, err := strconv.ParseInt(conf.Get(CONF_DAYS), 10, 0)
if err != nil {
fmt.Println("Error while parsing value of --days")
return
}
all := args["--all"].(bool)
future := buildTime(time.Now().AddDate(0, 0, int(days)), 23, 59, false)
messages := NewMessagesFromDirectory(filepath.Join(conf.Get(CONF_WORKDIR), DIR_TODO))
sort.Sort(messages)
if all {
fmt.Printf("Showing all messages.\n\n")
} else {
fmt.Printf("Showing messages before %s.\n\n", future.Format(DATETIME_FORMAT))
}
count := 0
for _, message := range messages {
message.Conf.MergeWith(conf)
if errs := message.Verify(); errs != nil {
fmt.Printf("Error in message \"%s\". Please run 'lettersnail check'.\n", message.Name)
continue
}
// Errors are caught already by Verify()
messageDate, _ := ParseTime(message.Get(CONF_DATE))
if all || messageDate.Before(future) {
count++
fmt.Printf("%s %s (%s)\n", messageDate.Format(DATETIME_FORMAT), message.Get(CONF_SUBJECT), message.Name)
}
}
if count == 0 {
fmt.Println("No messages.")
}
}
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