68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
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package main
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import (
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"fmt"
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"strings"
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"bufio"
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"os"
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)
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type cliCommand struct {
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name string
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description string
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callback func() error
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}
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var supportedCommands map[string]cliCommand
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func startRepl() {
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reader := bufio.NewScanner(os.Stdin)
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fmt.Println("Welcome to the Pokedex!")
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for {
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// Print prompt
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fmt.Printf("Pokedex > ")
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reader.Scan()
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words := cleanInput(reader.Text())
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if len(words) == 0 {
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continue
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}
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commandName := words[0]
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command, valid := getCommands()[commandName]
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if !valid {
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fmt.Println("Unknown command.")
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continue
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}
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if err := command.callback(); err != nil {
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fmt.Printf("Encountered error running command: %v\n", command.name)
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}
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}
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}
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func cleanInput(text string) []string {
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if len(text) == 0 {
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fmt.Println("Input is empty!")
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return []string{}
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}
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output := strings.ToLower(text)
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words := strings.Fields(output)
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return words
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}
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func getCommands() map[string]cliCommand{
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return map[string]cliCommand{
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"help": {
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name: "help",
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description: "Prints this help menu.",
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callback: commandHelp,
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},
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"exit": {
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name: "exit",
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description: "Exits the Pokedex",
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callback: commandExit,
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},
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}
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}
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