#!/bin/sh
set -eu

HOST="https://git.briannelson.dev"   # your Gitea URL, no trailing slash
REPO="brian/rusty-pw"
BIN="rusty-pw"
DIR="$HOME/.local/bin"

# Only Apple Silicon Macs are supported for now. Fail clearly otherwise.
if [ "$(uname -s)" != "Darwin" ] || [ "$(uname -m)" != "arm64" ]; then
  echo "This installer only supports macOS on Apple Silicon." >&2
  exit 1
fi

# Ask Gitea for the newest release tag.
tag=$(curl -fsSL "$HOST/api/v1/repos/$REPO/releases/latest" \
  | sed -n 's/.*"tag_name": *"\([^"]*\)".*/\1/p' | head -n 1)

if [ -z "$tag" ]; then
  echo "Could not find a release for $REPO" >&2
  exit 1
fi

# Download and install. curl downloads aren't quarantined, so no Gatekeeper prompt.
mkdir -p "$DIR"
echo "Downloading $BIN $tag..."
curl -fsSL "$HOST/$REPO/releases/download/$tag/$BIN-macos-arm64" -o "$DIR/$BIN"
chmod +x "$DIR/$BIN"

# Put the install folder on PATH for future terminals (zsh is the macOS default).
case ":$PATH:" in
  *":$DIR:"*) ;;
  *)
    rc="$HOME/.zshrc"
    line='export PATH="$HOME/.local/bin:$PATH"'
    if ! grep -qsF "$line" "$rc"; then
      echo "$line" >> "$rc"
    fi
    echo "Added $DIR to PATH in $rc. Open a new terminal window to use it."
    ;;
esac

echo "Installed $BIN $tag. Run: $BIN"