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main.go
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main.go
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package main
import (
"bufio"
"fmt"
"net/http/cookiejar"
"os"
"github.com/hakula139/REALMS/internal/app/frontend"
"github.com/urfave/cli/v2"
)
func main() {
app := &cli.App{
Name: "REALMS",
Version: "v0.1.0",
Authors: []*cli.Author{
&cli.Author{
Name: "Hakula Chen",
Email: "i@hakula.xyz",
},
},
Usage: "REALMS Establishes A Library Management System",
Action: router,
}
err := app.Run(os.Args)
if err != nil {
fmt.Println("realms: failed to start: " + err.Error())
}
}
func router(c *cli.Context) error {
fmt.Println("Welcome to REALMS! Check the manual using the command 'help'.")
jar, _ := cookiejar.New(nil)
for {
fmt.Print("> ")
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan()
op := scanner.Text()
switch op {
case "":
// Does nothing
case "help":
frontend.ShowHelp()
case "login":
if err := frontend.Login(jar); err != nil {
fmt.Println(err.Error())
}
case "logout":
if err := frontend.Logout(jar); err != nil {
fmt.Println(err.Error())
}
case "me":
if err := frontend.Me(jar); err != nil {
fmt.Println(err.Error())
}
case "status":
if err := frontend.Status(jar); err != nil {
fmt.Println(err.Error())
}
case "add book":
if err := frontend.AddBook(jar); err != nil {
fmt.Println(err.Error())
}
case "update book":
if err := frontend.UpdateBook(jar); err != nil {
fmt.Println(err.Error())
}
case "remove book":
if err := frontend.RemoveBook(jar); err != nil {
fmt.Println(err.Error())
}
case "show books":
if err := frontend.ShowBooks(); err != nil {
fmt.Println(err.Error())
}
case "show book":
if err := frontend.ShowBook(); err != nil {
fmt.Println(err.Error())
}
case "find books":
if err := frontend.FindBooks(jar); err != nil {
fmt.Println(err.Error())
}
case "add user":
if err := frontend.AddUser(jar); err != nil {
fmt.Println(err.Error())
}
case "update user":
if err := frontend.UpdateUser(jar); err != nil {
fmt.Println(err.Error())
}
case "remove user":
if err := frontend.RemoveUser(jar); err != nil {
fmt.Println(err.Error())
}
case "show users":
if err := frontend.ShowUsers(jar); err != nil {
fmt.Println(err.Error())
}
case "show user":
if err := frontend.ShowUser(jar); err != nil {
fmt.Println(err.Error())
}
case "borrow book":
if err := frontend.BorrowBook(jar); err != nil {
fmt.Println(err.Error())
}
case "return book":
if err := frontend.ReturnBook(jar); err != nil {
fmt.Println(err.Error())
}
case "check ddl":
if err := frontend.ShowBorrowed(jar); err != nil {
fmt.Println(err.Error())
}
case "extend ddl":
if err := frontend.ExtendDeadline(jar); err != nil {
fmt.Println(err.Error())
}
case "show list":
if err := frontend.ShowBookList(jar); err != nil {
fmt.Println(err.Error())
}
case "show overdue":
if err := frontend.ShowOverdueList(jar); err != nil {
fmt.Println(err.Error())
}
case "show history":
if err := frontend.ShowHistory(jar); err != nil {
fmt.Println(err.Error())
}
case "exit":
fmt.Println("Bye!")
return nil
default:
fmt.Println("Invalid operation! Check the manual using the command 'help'.")
}
}
}