aplus

A+Attendance CLI utility via Instructure Canvas
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main.go (3272B)

      1 package main
      2 
      3 import (
      4 	"flag"
      5 	"fmt"
      6 	"net/http"
      7 	"os"
      8 	"runtime/pprof"
      9 )
     10 
     11 var base_link string
     12 var base_aplus_link string
     13 var external_tools_code int
     14 var token string
     15 var client http.Client
     16 var verbose bool
     17 
     18 func usage() {
     19 	fmt.Println("Usage: aplus --code attendance_code --course course_code [--list] [--listfav] [--timetable] [--help]")
     20 	fmt.Println("  -c, --code\tfive character attendance code")
     21 	fmt.Println("  -C, --course\tcanvas course ID")
     22 	fmt.Println("  -L, --list\tlists canvas courses with name and ID")
     23 	fmt.Println("  -F, --listfav\tlists favourited canvas courses with name and ID")
     24 	fmt.Println("  -t, --timetable\tlists the class sessions in a course")
     25 	fmt.Println("  -v, --verbose\tprints with verbose output")
     26 	fmt.Println("  -h, --help\tdisplays this help message")
     27 	fmt.Println("  -p, --profile\twrites cpu profile to a file (for debugging/optimizing)")
     28 }
     29 
     30 func main() {
     31 	initialize()
     32 
     33 	var code string
     34 	var course int
     35 	var listall bool
     36 	var listfav bool
     37 	var timetable_ bool
     38 	var help bool
     39 	var cpuprofile string
     40 
     41 	flag.StringVar(&code, "code", "", "5 character attendance code")
     42 	flag.StringVar(&code, "c", "", "5 character attendance code")
     43 	flag.IntVar(&course, "course", -1, "canvas course code")
     44 	flag.IntVar(&course, "C", -1, "canvas course code")
     45 	flag.BoolVar(&listall, "list", false, "list all canvas courses")
     46 	flag.BoolVar(&listall, "L", false, "list all canvas courses")
     47 	flag.BoolVar(&listfav, "listfav", false, "list favorited canvas courses")
     48 	flag.BoolVar(&listfav, "F", false, "list favorited canvas courses")
     49 	flag.BoolVar(&timetable_, "t", false, "lists the class sessions in a course")
     50 	flag.BoolVar(&timetable_, "timetable", false, "lists the class sessions in a course")
     51 	flag.BoolVar(&verbose, "verbose", false, "verbose output")
     52 	flag.BoolVar(&verbose, "v", false, "verbose output")
     53 	flag.BoolVar(&help, "help", false, "view usage message")
     54 	flag.BoolVar(&help, "h", false, "view usage message")
     55 	flag.StringVar(&cpuprofile, "p", "", "CPU profiling report location")
     56 	flag.StringVar(&cpuprofile, "profile", "", "CPU profiling report location")
     57 
     58 	flag.Parse()
     59 
     60 	if cpuprofile != "" {
     61 		cpuf, err := os.Create(cpuprofile)
     62 		if err != nil {
     63 			fmt.Println(err)
     64 			os.Exit(1)
     65 		}
     66 		defer cpuf.Close()
     67 
     68 		err = pprof.StartCPUProfile(cpuf)
     69 		if err != nil {
     70 			fmt.Println(err)
     71 			os.Exit(1)
     72 		}
     73 		defer pprof.StopCPUProfile()
     74 	}
     75 
     76 	if code == "" && course == -1 && !listall && !listfav && !help {
     77 		usage()
     78 		os.Exit(1)
     79 	}
     80 
     81 	if listall {
     82 		_ = list_all_courses(false)
     83 		os.Exit(0)
     84 	}
     85 
     86 	if listfav {
     87 		list_favorite_courses()
     88 		os.Exit(0)
     89 	}
     90 
     91 	if course != -1 && timetable_ {
     92 		timetable(course)
     93 		os.Exit(0)
     94 	} else if course == -1 && timetable_ {
     95 		fmt.Println("Course code required for timetable")
     96 		usage()
     97 		os.Exit(1)
     98 	}
     99 
    100 	if help {
    101 		usage()
    102 		os.Exit(0)
    103 	}
    104 
    105 	if len(code) == 5 && course != -1 {
    106 		fmt.Printf("%d %s\n", course, code)
    107 		submit_code(course, code)
    108 	} else if code == "" && course != -1 {
    109 		fmt.Println("Attendance code not provided")
    110 		usage()
    111 		os.Exit(1)
    112 	} else if len(code) != 5 {
    113 		fmt.Println("Attendance code must be 5 characters long")
    114 		usage()
    115 		os.Exit(1)
    116 	} else if len(code) == 5 && course == -1 {
    117 		fmt.Println("Checking which course to send the code to")
    118 		submit_code_sans_course(code)
    119 	}
    120 }