install.sh

#!/bin/sh
set -e

REPO="KakkoiDev/aidb"

# Detect OS
OS=$(uname -s | tr '[:upper:]' '[:lower:]')
case "$OS" in
  darwin|linux) ;;
  *) echo "Unsupported OS: $OS" >&2; exit 1 ;;
esac

# Detect arch
ARCH=$(uname -m)
case "$ARCH" in
  x86_64)  ARCH="amd64" ;;
  aarch64|arm64) ARCH="arm64" ;;
  *) echo "Unsupported architecture: $ARCH" >&2; exit 1 ;;
esac

# Install directory (override with BINDIR env var)
if [ -z "$BINDIR" ]; then
  if [ -n "$GOBIN" ]; then
    BINDIR="$GOBIN"
  else
    BINDIR="$HOME/.local/bin"
  fi
fi

# Get latest version
VERSION=$(curl -sSf "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name"' | sed 's/.*"v\(.*\)".*/\1/')
if [ -z "$VERSION" ]; then
  echo "Failed to fetch latest version" >&2
  exit 1
fi

ARCHIVE="aidb_${VERSION}_${OS}_${ARCH}.tar.gz"
URL="https://github.com/${REPO}/releases/download/v${VERSION}/${ARCHIVE}"
CHECKSUMS_URL="https://github.com/${REPO}/releases/download/v${VERSION}/checksums.txt"

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

echo "Downloading aidb v${VERSION} for ${OS}/${ARCH}..."
curl -sSfL -o "${TMPDIR}/${ARCHIVE}" "$URL"
curl -sSfL -o "${TMPDIR}/checksums.txt" "$CHECKSUMS_URL"

# Verify checksum
cd "$TMPDIR"
EXPECTED=$(grep "$ARCHIVE" checksums.txt | awk '{print $1}')
if [ -z "$EXPECTED" ]; then
  echo "Checksum not found for ${ARCHIVE}" >&2
  exit 1
fi

if command -v sha256sum >/dev/null 2>&1; then
  ACTUAL=$(sha256sum "$ARCHIVE" | awk '{print $1}')
elif command -v shasum >/dev/null 2>&1; then
  ACTUAL=$(shasum -a 256 "$ARCHIVE" | awk '{print $1}')
else
  echo "Warning: no sha256 tool found, skipping checksum verification" >&2
  ACTUAL="$EXPECTED"
fi

if [ "$EXPECTED" != "$ACTUAL" ]; then
  echo "Checksum mismatch!" >&2
  echo "  expected: $EXPECTED" >&2
  echo "  actual:   $ACTUAL" >&2
  exit 1
fi

# Extract and install
tar xzf "$ARCHIVE"
mkdir -p "$BINDIR"
install -m 755 aidb "${BINDIR}/aidb"

echo "Installed aidb v${VERSION} to ${BINDIR}/aidb"

# Check if BINDIR is in PATH
case ":$PATH:" in
  *":$BINDIR:"*) ;;
  *) echo "Note: $BINDIR is not in your PATH. Add it with:"
     echo "  export PATH=\"$BINDIR:\$PATH\"" ;;
esac