web-crawler/main.go

package main

import (
	"errors"
	"fmt"
	"maps"
	"os"
)

var (
	errNoWebsiteProvided = errors.New("no website provided")
	errTooManyArgs       = errors.New("too many arguments provided")
)

func main() {
	if err := run(); err != nil {
		os.Stderr.WriteString("ERROR: " + err.Error() + "\n")

		os.Exit(1)
	}
}

func run() error {
	args := os.Args[1:]

	if len(args) == 0 {
		return errNoWebsiteProvided
	}

	if len(args) > 1 {
		return errTooManyArgs
	}

	//baseURL := args[0]

	pages := make(map[string]int)

	//var err error

	//pages, err = crawlPage(baseURL, baseURL, pages)
	//if err != nil {
	//	return fmt.Errorf("received an error while crawling the website: %w", err)
	//}

	fmt.Printf("\n\nRESULTS:\n")

	for page, count := range maps.All(pages) {
		fmt.Printf("%s: %d\n", page, count)
	}

	return nil
}