install.sh

#!/usr/bin/env bash
# FPPT One-Click Install for macOS / Linux
# Requires: Python 3.10+

set -e

echo "========================================"
echo "  FPPT Installer (macOS / Linux)"
echo "========================================"
echo

# Step 1: Check Python version (multi-command detection)
echo "[1/5] Checking Python..."

PYTHON_CMD=""

# Try python3.12 first
if command -v python3.12 &> /dev/null; then
    PYTHON_CMD="python3.12"
elif command -v python3 &> /dev/null; then
    PYTHON_CMD="python3"
elif command -v python &> /dev/null; then
    PYTHON_CMD="python"
fi

# --- Python not found. Try brew on macOS. ---
if [ -z "$PYTHON_CMD" ]; then
    echo "  Python not found on this system."

    if [[ "$OSTYPE" == "darwin"* ]]; then
        # macOS: try brew auto-install
        if command -v brew &> /dev/null; then
            echo
            echo "  ======================================================"
            echo "  Found Homebrew package manager."
            echo "  I can install Python 3.12 automatically for you."
            echo
            echo "  Install Python 3.12 now? [Y/n]"
            echo "  ======================================================"
            read -r CONFIRM
            if [ "$CONFIRM" = "n" ] || [ "$CONFIRM" = "N" ]; then
                echo "  Cancelled."
                exit 1
            fi

            echo
            echo "  Installing Python 3.12 via Homebrew..."
            echo "  (This may take a few minutes)"
            brew install python@3.12

            if [ $? -ne 0 ]; then
                echo "  WARNING: brew returned an error. Trying to continue anyway..."
            fi

            # Re-detect Python
            if command -v python3.12 &> /dev/null; then
                PYTHON_CMD="python3.12"
            elif command -v python3 &> /dev/null; then
                PYTHON_CMD="python3"
            elif [ -f "$(brew --prefix python@3.12 2>/dev/null)/bin/python3" ]; then
                PYTHON_CMD="$(brew --prefix python@3.12)/bin/python3"
            fi

            if [ -n "$PYTHON_CMD" ]; then
                echo "  Python installed successfully."
            else
                echo "  Install completed but Python cannot be found on PATH."
                echo "  Please restart your terminal and run install.sh again."
                exit 1
            fi
        else
            # macOS: no python, no brew — print fallback
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Install Homebrew first:"
            echo "    /bin/bash -c \"\$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)\""
            echo "  Then install Python: brew install python@3.12"
            echo
            echo "  Or download Python manually: https://www.python.org/downloads/"
            exit 1
        fi
    else
        # Linux: detect package manager and print instructions (don't auto-install)
        FOUND_PM=""
        if command -v apt &> /dev/null; then
            FOUND_PM="apt"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo apt update && sudo apt install -y python3 python3-venv python3-pip"
        elif command -v dnf &> /dev/null; then
            FOUND_PM="dnf"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo dnf install -y python3 python3-pip"
        elif command -v yum &> /dev/null; then
            FOUND_PM="yum"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo yum install -y python3 python3-pip"
        elif command -v pacman &> /dev/null; then
            FOUND_PM="pacman"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo pacman -S python python-pip"
        elif command -v zypper &> /dev/null; then
            FOUND_PM="zypper"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo zypper install -y python3 python3-pip"
        elif command -v apk &> /dev/null; then
            FOUND_PM="apk"
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Run the following to install:"
            echo "    sudo apk add python3 py3-pip"
        fi

        if [ -z "$FOUND_PM" ]; then
            echo
            echo "  Python 3.10+ is required but not found."
            echo "  Could not detect your package manager."
            echo "  Please install Python 3.10+ manually: https://www.python.org/downloads/"
        fi
        exit 1
    fi
fi

# Display version
PYVER=$($PYTHON_CMD --version 2>&1 | awk '{print $2}')
echo "  Found Python $PYVER"

# Version >= 3.10 check
$PYTHON_CMD -c "import sys; sys.exit(0 if sys.version_info >= (3,10) else 1)" || {
    echo "ERROR: Python 3.10+ required. Found $PYVER"
    echo "Please install Python 3.10 or newer from https://python.org"
    exit 1
}

# Step 2: Create virtual environment
echo "[2/5] Creating virtual environment..."
$PYTHON_CMD -m venv venv
if [ $? -ne 0 ]; then
    echo "ERROR: Failed to create venv"
    exit 1
fi

# Step 3: Install Python dependencies
echo "[3/5] Installing Python dependencies..."
venv/bin/pip install -r requirements.txt
if [ $? -ne 0 ]; then
    echo "ERROR: Failed to install dependencies"
    exit 1
fi

# Step 4: Install Playwright browsers
echo "[4/5] Installing Playwright Chromium..."
venv/bin/playwright install chromium || {
    echo "WARNING: Playwright browser install failed. Some features may be unavailable."
}

# Step 5: Verify
echo "[5/5] Verifying installation..."
venv/bin/python -c "import flask, pptx, yaml, requests; print('OK')" || {
    echo "ERROR: Verification failed"
    exit 1
}

echo
echo "========================================"
echo "  Installation complete!"
echo
echo "  Desktop: venv/bin/python desktop/main.py"
echo "  AI Use: Import SKILL.md into your AI agent terminal"
echo "========================================"