#!/bin/bash
set -e

# gitspine installer
# Usage: curl -fsSL https://gitspine.com/install.sh | bash

VERSION="9fa77c0-20260211"
BASE_URL="https://gitspine.com/downloads"

# Detect OS and architecture
OS=$(uname -s | tr '[:upper:]' '[:lower:]')
ARCH=$(uname -m)

case "$OS" in
  darwin)
    case "$ARCH" in
      arm64)
        PLATFORM="macos-arm64"
        ;;
      x86_64)
        PLATFORM="macos-x86_64"
        ;;
      *)
        echo "Error: Unsupported architecture: $ARCH"
        exit 1
        ;;
    esac
    ;;
  linux)
    case "$ARCH" in
      x86_64)
        PLATFORM="linux-x86_64"
        ;;
      *)
        echo "Error: Unsupported architecture: $ARCH"
        exit 1
        ;;
    esac
    ;;
  *)
    echo "Error: Unsupported OS: $OS"
    exit 1
    ;;
esac

FILENAME="gitspine-${PLATFORM}-${VERSION}.tar.gz"
URL="${BASE_URL}/${FILENAME}"

# Determine install location
if [ -w /usr/local/bin ]; then
  INSTALL_DIR="/usr/local/bin"
else
  INSTALL_DIR="$HOME/.local/bin"
  mkdir -p "$INSTALL_DIR"
fi

echo "Downloading gitspine for ${PLATFORM}..."
TMPDIR=$(mktemp -d)
curl -fsSL "$URL" -o "$TMPDIR/$FILENAME"

echo "Installing to ${INSTALL_DIR}..."
tar -xzf "$TMPDIR/$FILENAME" -C "$TMPDIR"
mv "$TMPDIR/gitspine" "$INSTALL_DIR/gitspine"
chmod +x "$INSTALL_DIR/gitspine"

# Cleanup
rm -rf "$TMPDIR"

# Check if install dir is in PATH
if [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then
  echo ""
  echo "Note: Add $INSTALL_DIR to your PATH:"
  echo "  export PATH=\"$INSTALL_DIR:\$PATH\""
  echo ""
fi

echo "Done! Run 'gitspine' in any git repository to get started."
echo ""
echo "Free trial: 14 days. Purchase a license at https://gitspine.com"