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import gleam/bit_array
import gleam/int
import gleam/list
import gleam/string_builder
import image
import simplifile
type XmlImages {
XmlImages(xml: String, width: Int, height: Int)
}
fn image(data, image: image.ImageInformation, width) {
"<image
height=\"" <> int.to_string(image.height) <> "\"
width=\"" <> int.to_string(image.width) <> "\"
x=\"" <> int.to_string(width) <> "\"
y=\"0\"
xlink:href=\"data:image/" <> image.extension <> ";base64," <> bit_array.base64_encode(
data,
False,
) <> "\"/>"
}
fn images(theme, digits, width, height, svgs) {
case digits {
[] -> XmlImages(string_builder.to_string(svgs), width, height)
[digit, ..rest] ->
case
simplifile.read_bits(
from: "./themes/"
<> theme
<> "/"
<> int.to_string(digit)
<> "."
<> case theme {
"gelbooru-h" | "moebooru-h" | "lain" | "garukura" -> "png"
_ -> "gif"
},
)
{
Ok(data) ->
case image.get_image_information(data) {
Ok(information) ->
images(
theme,
rest,
width + information.width,
int.max(height, information.height),
string_builder.append(svgs, image(data, information, width)),
)
Error(_) -> XmlImages(string_builder.to_string(svgs), width, height)
}
Error(_) -> XmlImages(string_builder.to_string(svgs), width, height)
}
}
}
pub fn xml(theme, number) {
let xml =
images(
theme,
{
let assert Ok(digits) = int.digits(number, 10)
let digits_padding = 6 - list.length(digits)
case digits_padding {
n if n > 0 -> list.concat([list.repeat(0, digits_padding), digits])
_ -> digits
}
},
0,
0,
string_builder.new(),
)
"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>
<svg
height=\"" <> int.to_string(xml.height) <> "\"
style=\"image-rendering: pixelated;\"
version=\"1.1\"
width=\"" <> int.to_string(xml.width) <> "\"
xmlns=\"http://www.w3.org/2000/svg\"
xmlns:xlink=\"http://www.w3.org/1999/xlink\"
>
<title>Mayu</title>
<g>" <> xml.xml <> "</g>
</svg>"
}
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