1package image
 2
 3import (
 4	"fmt"
 5	"image"
 6	"image/color"
 7	"os"
 8	"strings"
 9
10	"github.com/charmbracelet/lipgloss/v2"
11	"github.com/disintegration/imaging"
12	"github.com/lucasb-eyer/go-colorful"
13)
14
15func ValidateFileSize(filePath string, sizeLimit int64) (bool, error) {
16	fileInfo, err := os.Stat(filePath)
17	if err != nil {
18		return false, fmt.Errorf("error getting file info: %w", err)
19	}
20
21	if fileInfo.Size() > sizeLimit {
22		return true, nil
23	}
24
25	return false, nil
26}
27
28func ToString(width int, img image.Image) string {
29	img = imaging.Resize(img, width, 0, imaging.Lanczos)
30	b := img.Bounds()
31	imageWidth := b.Max.X
32	h := b.Max.Y
33	str := strings.Builder{}
34
35	for heightCounter := 0; heightCounter < h; heightCounter += 2 {
36		for x := range imageWidth {
37			c1, _ := colorful.MakeColor(img.At(x, heightCounter))
38			color1 := lipgloss.Color(c1.Hex())
39
40			var color2 color.Color
41			if heightCounter+1 < h {
42				c2, _ := colorful.MakeColor(img.At(x, heightCounter+1))
43				color2 = lipgloss.Color(c2.Hex())
44			} else {
45				color2 = color1
46			}
47
48			str.WriteString(lipgloss.NewStyle().Foreground(color1).
49				Background(color2).Render("▀"))
50		}
51
52		str.WriteString("\n")
53	}
54
55	return str.String()
56}
57
58func ImagePreview(width int, filename string) (string, error) {
59	imageContent, err := os.Open(filename)
60	if err != nil {
61		return "", err
62	}
63	defer imageContent.Close()
64
65	img, _, err := image.Decode(imageContent)
66	if err != nil {
67		return "", err
68	}
69
70	imageString := ToString(width, img)
71
72	return imageString, nil
73}