#!/usr/bin/env bash
# clip-sync install.sh
# One-liner install: curl -sSL URL | bash
#
# Detects OS and architecture, downloads the correct binary,
# installs to ~/.local/bin/, and creates a default config.

set -euo pipefail

REPO="https://git.dracodev.net/Projets/clip-sync"
VERSION="${CLIP_SYNC_VERSION:-latest}"
BINARY="clip-sync"
INSTALL_DIR="${HOME}/.local/bin"
CONFIG_DIR="${HOME}/.config/clip-sync"
CONFIG_FILE="${CONFIG_DIR}/peers.toml"

# ── Detect platform ────────────────────────────────────────────────────

detect_platform() {
    local os arch

    case "$(uname -s)" in
        Linux)  os="linux" ;;
        Darwin) os="darwin" ;;
        MINGW*|MSYS*|CYGWIN*) os="windows" ;;
        *)
            echo "clip-sync: unsupported OS: $(uname -s)"
            exit 1
            ;;
    esac

    case "$(uname -m)" in
        x86_64|amd64) arch="amd64" ;;
        aarch64|arm64) arch="arm64" ;;
        *)
            echo "clip-sync: unsupported architecture: $(uname -m)"
            exit 1
            ;;
    esac

    echo "${os}-${arch}"
}

# ── Download binary ────────────────────────────────────────────────────

download_binary() {
    local platform="$1"
    local bin_name="${BINARY}-${platform}"
    local download_url

    if [ "$VERSION" = "latest" ]; then
        # Try latest release
        download_url="${REPO}/releases/download/latest/${bin_name}"
    else
        download_url="${REPO}/releases/download/${VERSION}/${bin_name}"
    fi

    # Windows binary has .exe extension
    if [[ "$platform" == windows-* ]]; then
        bin_name="${bin_name}.exe"
        download_url="${download_url}.exe"
    fi

    echo "clip-sync: downloading ${download_url}..."
    
    if command -v curl &>/dev/null; then
        curl -fSL --progress-bar -o "${INSTALL_DIR}/${BINARY}" "${download_url}" || {
            echo "clip-sync: download failed. Try building from source:"
            echo "  git clone ${REPO} && cd clip-sync && make install"
            exit 1
        }
    elif command -v wget &>/dev/null; then
        wget -q --show-progress -O "${INSTALL_DIR}/${BINARY}" "${download_url}" || {
            echo "clip-sync: download failed. Try building from source:"
            echo "  git clone ${REPO} && cd clip-sync && make install"
            exit 1
        }
    else
        echo "clip-sync: curl or wget required for download"
        exit 1
    fi

    chmod +x "${INSTALL_DIR}/${BINARY}"
    echo "clip-sync: installed to ${INSTALL_DIR}/${BINARY}"
}

# ── Create default config ──────────────────────────────────────────────

create_config() {
    if [ -f "${CONFIG_FILE}" ]; then
        echo "clip-sync: config already exists at ${CONFIG_FILE} (skipping)"
        return
    fi

    mkdir -p "${CONFIG_DIR}"
    cat > "${CONFIG_FILE}" <<'EOF'
# clip-sync peers configuration
# ~/.config/clip-sync/peers.toml
#
# Environment overrides:
#   CLIP_SYNC_PORT=9137        override daemon.port
#   CLIP_SYNC_POLL_MS=500      override daemon.poll_interval_ms

[daemon]
port = 9137
poll_interval_ms = 500

# Add your peers here:
# [[peers]]
# name = "example"
# addr = "192.168.1.x:9137"
EOF

    echo "clip-sync: created default config at ${CONFIG_FILE}"
    echo "clip-sync: edit it to add your peers, then run: ${BINARY}"
}

# ── Main ────────────────────────────────────────────────────────────────

main() {
    echo "clip-sync installer"
    echo "==================="
    echo ""

    mkdir -p "${INSTALL_DIR}"

    local platform
    platform=$(detect_platform)
    echo "clip-sync: detected platform: ${platform}"

    download_binary "${platform}"
    create_config

    # Check if install dir is in PATH
    if ! echo "${PATH}" | tr ':' '\n' | grep -qF "${INSTALL_DIR}"; then
        echo ""
        echo "clip-sync: NOTE: ${INSTALL_DIR} is not in your PATH."
        echo "  Add this to your shell config:"
        echo "    export PATH=\"\${HOME}/.local/bin:\${PATH}\""
    fi

    echo ""
    echo "clip-sync: installation complete!"
    echo "  1. Edit ${CONFIG_FILE} to add your peers"
    echo "  2. Run: ${BINARY}"
    echo ""
    echo "  For service installation, see README.md"
}

main