#!/bin/sh
# This file will be served from GitHub Pages
# Copy contents from install-server.sh but update URLs

set -e

# Configuration
GITHUB_RELEASES="https://github.com/noorle/cli-releases/releases"
INSTALL_DIR="${NOORLE_INSTALL:-$HOME/.noorle}"

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

error() {
    printf "${RED}Error: $1${NC}\n" >&2
    exit 1
}

info() {
    printf "${GREEN}$1${NC}\n"
}

warn() {
    printf "${YELLOW}$1${NC}\n"
}

# Detect platform and architecture
detect_platform() {
    OS="$(uname -s)"
    ARCH="$(uname -m)"

    case "$OS" in
        Linux*)
            PLATFORM="linux"
            ;;
        Darwin*)
            PLATFORM="darwin"
            ;;
        MINGW*|MSYS*|CYGWIN*)
            error "Windows detected. Please download from: ${GITHUB_RELEASES}/latest"
            ;;
        *)
            error "Unsupported operating system: $OS"
            ;;
    esac

    case "$ARCH" in
        x86_64|amd64)
            ARCH="x64"
            ;;
        aarch64|arm64)
            ARCH="arm64"
            ;;
        *)
            error "Unsupported architecture: $ARCH"
            ;;
    esac

    BINARY_NAME="noorle-${PLATFORM}-${ARCH}"
    info "Detected platform: $PLATFORM-$ARCH"
}

# Download and install
install_noorle() {
    mkdir -p "$INSTALL_DIR/bin"

    # GitHub automatically redirects /latest/download/ to the latest release
    DOWNLOAD_URL="${GITHUB_RELEASES}/latest/download/${BINARY_NAME}"

    info "Downloading latest Noorle CLI..."
    info "Platform binary: ${BINARY_NAME}"

    if command -v curl >/dev/null 2>&1; then
        # Follow redirects with -L, show errors with -S
        if ! curl -fsSL "$DOWNLOAD_URL" -o "$INSTALL_DIR/bin/noorle" --progress-bar; then
            error "Download failed. Check ${GITHUB_RELEASES}/latest for available versions."
        fi
    elif command -v wget >/dev/null 2>&1; then
        if ! wget -q "$DOWNLOAD_URL" -O "$INSTALL_DIR/bin/noorle" --show-progress; then
            error "Download failed. Check ${GITHUB_RELEASES}/latest for available versions."
        fi
    else
        error "Neither curl nor wget is available"
    fi

    chmod +x "$INSTALL_DIR/bin/noorle"
    info "Noorle CLI installed to: $INSTALL_DIR/bin/noorle"
}

# Setup PATH
setup_path() {
    BIN_DIR="$INSTALL_DIR/bin"

    case ":$PATH:" in
        *":$BIN_DIR:"*)
            info "Already in PATH"
            return
            ;;
    esac

    info "Adding to PATH..."

    SHELL_NAME="$(basename "$SHELL")"
    case "$SHELL_NAME" in
        bash)
            PROFILE="$HOME/.bashrc"
            [ -f "$HOME/.bash_profile" ] && PROFILE="$HOME/.bash_profile"
            ;;
        zsh)
            PROFILE="$HOME/.zshrc"
            ;;
        fish)
            PROFILE="$HOME/.config/fish/config.fish"
            ;;
        *)
            PROFILE="$HOME/.profile"
            ;;
    esac

    if [ "$SHELL_NAME" = "fish" ]; then
        echo "set -gx PATH \$PATH $BIN_DIR" >> "$PROFILE"
    else
        echo "export PATH=\"\$PATH:$BIN_DIR\"" >> "$PROFILE"
    fi

    warn "PATH updated in $PROFILE"
    warn "Run: source $PROFILE"
}

# Main
main() {
    echo "Installing Noorle CLI..."
    echo

    detect_platform
    install_noorle
    setup_path

    echo
    info "✅ Installation complete! 🎉"
    echo
    echo "👉 To start using noorle in THIS terminal, run:"
    info "  source ~/.${SHELL##*/}rc"
    echo
    echo "Or simply open a new terminal window."
    echo
    echo "Then run: noorle --help"
}

main "$@"