repl.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
	"time"

	"github.com/souloutz/pokedex/internal/pokeapi"
)

const (
	RESET   = "\033[0m"
	RED     = "\033[31m"
	GREEN   = "\033[32m"
	YELLOW  = "\033[33m"
	BLUE    = "\033[34m"
	MAGENTA = "\033[35m"
	CYAN    = "\033[36m"
	GRAY    = "\033[37m"
	WHITE   = "\033[97m"
)

type config struct {
	pokeapiClient    pokeapi.Client
	nextLocationsURL *string
	prevLocationsURL *string
	caughtPokemon    map[string]pokeapi.Pokemon
}

func startRepl(config *config) {
	reader := bufio.NewScanner(os.Stdin)
	fmt.Printf("%sStarting the Pokedex...\n", YELLOW)
	time.Sleep(1 * time.Second)

	for {
		fmt.Printf("%sPokedex > %s", RED, RESET)

		reader.Scan()
		words := cleanInput(reader.Text())
		if len(words) == 0 {
			continue
		}

		commandName := words[0]
		args := []string{}
		if len(words) > 1 {
			args = words[1:]
		}

		command, exists := getCommands()[commandName]

		if exists {
			err := command.callback(config, args...)
			if err != nil {
				fmt.Println(err)
			}
			continue

		} else {
			fmt.Println("Unknown command")
			continue
		}
	}
}

func cleanInput(text string) []string {
	words := strings.Fields(strings.ToLower(text))
	return words
}

func getCommands() map[string]cliCommand {
	return map[string]cliCommand{
		"help": {
			name:        "help",
			description: "Displays a help message",
			callback:    commandHelp,
		},
		"catch": {
			name:        "catch <pokemon_name>",
			description: "Attempt to catch a Pokemon",
			callback:    commandCatch,
		},
		"inspect": {
			name:        "inspect <pokemon_name>",
			description: "View details about a caught Pokemon",
			callback:    commandInspect,
		},
		"map": {
			name:        "map",
			description: "Get the next page of location areas",
			callback:    commandMapf,
		},
		"mapb": {
			name:        "mapb",
			description: "Get the previous page of location areas",
			callback:    commandMapb,
		},
		"explore": {
			name:        "explore <location_name>",
			description: "Explore a location",
			callback:    commandExplore,
		},
		"pokedex": {
			name:        "pokedex",
			description: "See all of your caught pokemon",
			callback:    commandPokedex,
		},
		"exit": {
			name:        "exit",
			description: "Exit the Pokedex",
			callback:    commandExit,
		},
	}
}