feat: Basic polling

internal/schedule/poll.go

@@ -0,0 +1,44 @@
+package schedule
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"git.inkling.su/mrqiz/schedule-poll/internal/config"
+)
+
+func PollSchedule() {
+	flagFilePath := config.AppConfig.FlagfilePath
+
+	if _, fileErr := os.Stat(flagFilePath); fileErr == nil {
+		return
+	}
+
+	facultyId := config.AppConfig.Schedule.FacultyId
+	groupId := config.AppConfig.Schedule.GroupId
+	date := config.AppConfig.Schedule.StartDate
+
+	week, err := GetWeek(groupId, date)
+
+	if err != nil {
+		log.Panicln("Failed to get week data", err)
+	}
+
+	days := len(week.Days)
+
+	if days != 0 {
+		siteUrl := GetScheduleUrl(facultyId, groupId, date)
+		msg := fmt.Sprintf(
+			"❗ Опубликовано расписание на новый семестр!\n\n"+
+				"Появились занятия на неделе с %s\n"+
+				"Доступно дней: %d\n\n"+
+				"%s\n",
+			date,
+			len(week.Days),
+			siteUrl)
+
+		os.WriteFile(flagFilePath, []byte(msg), os.FileMode(0777))
+		log.Printf("Found %d days", len(week.Days))
+	}
+}