#!/usr/bin/env bash
# noto color emoji, colrv1 flavour.
#
# typst >= 0.14 exports colr colour glyphs to pdf, but it does not load the cbdt
# bitmap font that debian's fonts-noto-color-emoji package installs (`typst fonts`
# does not even list it), so emoji used in source.md silently disappear from the
# pdf. the colrv1 build is picked up by font fallback, no markup needed.

set -euo pipefail

# noto-emoji only tags releases sporadically, so pin the font by commit
EMOJI_FONT_COMMIT=f3ae03f5e9b3b8516fa151f7168159ca1a3e7515

tmp="$(mktemp -d)"
trap 'rm -rf "$tmp"' EXIT

# typst, static musl build: x86_64 releases no longer ship a gnu build
TYPST_VERSION=0.15.1
case "$(uname -m)" in
  x86_64 | amd64) typst_arch=x86_64 ;;
  aarch64 | arm64) typst_arch=aarch64 ;;
  *) echo "unsupported architecture: $(uname -m)" >&2; exit 1 ;;
esac
curl -fsSL "https://github.com/typst/typst/releases/download/v${TYPST_VERSION}/typst-${typst_arch}-unknown-linux-musl.tar.xz" \
  | tar -xJ -C "$tmp"
sudo install -m 755 "$tmp/typst-${typst_arch}-unknown-linux-musl/typst" /usr/local/bin/typst

curl -fsSL -o "$tmp/Noto-COLRv1.ttf" \
  "https://raw.githubusercontent.com/googlefonts/noto-emoji/${EMOJI_FONT_COMMIT}/fonts/Noto-COLRv1.ttf"
sudo install -D -m 644 "$tmp/Noto-COLRv1.ttf" /usr/local/share/fonts/Noto-COLRv1.ttf
command -v fc-cache > /dev/null && fc-cache -f > /dev/null

typst fonts | grep -i emoji