package main

import (
	"fmt"
	"os"

	"tallin/internal/counter"
)

func main() {
	if len(os.Args) != 2 {
		fmt.Fprintf(os.Stderr, "usage: %s <filename>\n", os.Args[0])
		os.Exit(1)
	}

	file, err := os.Open(os.Args[1])
	if err != nil {
		fmt.Fprintf(os.Stderr, "open file: %v\n", err)
		os.Exit(1)
	}
	defer file.Close()

	counts, err := counter.Count(file)
	if err != nil {
		fmt.Fprintf(os.Stderr, "read file: %v\n", err)
		os.Exit(1)
	}

	for _, result := range counter.Sorted(counts) {
		fmt.Printf("%s:%d\n", result.Name, result.Count)
	}
}