package noteButtons

import (
	"fmt"
	"strings"
)

func parseArgs(input string) (map[string]string, error) {
	args := make(map[string]string)

	for len(input) > 0 {
		input = strings.TrimSpace(input)

		if input == "" {
			break
		}

		// Find the '='
		eq := strings.IndexByte(input, '=')

		if eq == -1 {
			return nil, fmt.Errorf("expected '='")
		}

		key := strings.TrimSpace(input[:eq])
		input = strings.TrimSpace(input[eq+1:])

		if key == "" {
			return nil, fmt.Errorf("empty argument name")
		}

		var value string

		if strings.HasPrefix(input, `"`) {
			// Quote value
			input = input[1:]

			end := strings.IndexByte(input, '"')

			if end == -1 {
				return nil, fmt.Errorf("unterminated quoted value for %q", key)
			}

			value = input[:end]
			input = input[end+1:]
		} else {
			// Unquoted value, consume until whitespace
			end := strings.IndexAny(input, " \t\r\n")

			if end == -1 {
				value = input
				input = ""
			} else {
				value = input[:end]
				input = input[end:]
			}
		}

		args[key] = value
	}

	return args, nil
}

func formatSkill(skill string) string {
	words := strings.Split(skill, "-")

	for i, word := range words {
		words[i] = capitalize(word)
	}

	return strings.Join(words, " ")
}

func capitalize(s string) string {
	return strings.ToUpper(string(s[0])) + s[1:]
}