package main

import (
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/google/uuid"
)

func ConvertStringUint32(s string) (uint32, error) {
	v, err := strconv.ParseUint(s, 10, 32)
	return uint32(v), err
}

func ConvertStringToRgba(str string) (*Rgba, error) {
	parts := strings.SplitN(str, ",", 5)
	if len(parts) != 4 {
		return nil, fmt.Errorf("invalid rgba")
	}
	rgba := &Rgba{}
	for i, p := range parts {
		n, err := strconv.ParseUint(strings.TrimSpace(p), 10, 8)
		if err != nil {
			return nil, fmt.Errorf("invalid component %d: %w", i, err)
		}
		rgba[i] = uint8(n)
	}
	return rgba, nil
}

func RgbaToUint32(r *Rgba) uint32 {
	return uint32(r[0])<<24 | uint32(r[1])<<16 | uint32(r[2])<<8 | uint32(r[3])
}

func Uint32ToRgba(v uint32) *Rgba {
	return &Rgba{uint8(v >> 24), uint8(v >> 16), uint8(v >> 8), uint8(v)}
}

func ConvertStringUuid(str string) (uuid.UUID, error) {
	return uuid.Parse(str)
}

func ConvertStringTimestamp(str string) (time.Time, error) {
	return time.Parse(time.RFC3339, str)
}