coolerdash.install

_ensure_credentials() {
    if [ ! -f /var/lib/coolercontrol/plugins/coolerdash/credentials.json ]; then
        mkdir -p /var/lib/coolercontrol/plugins/coolerdash
        printf '{\n  "access_token": ""\n}\n' > /var/lib/coolercontrol/plugins/coolerdash/credentials.json
    fi
}

_set_permissions() {
    chmod 600 /var/lib/coolercontrol/plugins/coolerdash/config.json 2>/dev/null || true
    chmod 600 /var/lib/coolercontrol/plugins/coolerdash/credentials.json 2>/dev/null || true
}

_refresh_coolercontrol() {
    command -v systemctl >/dev/null 2>&1 || return 0
    if systemctl is-active --quiet coolercontrold.service; then
        systemctl restart coolercontrold.service || echo "Note: CoolerControl restart failed."
    fi
}

post_install() {
    _ensure_credentials
    _set_permissions
    _refresh_coolercontrol

    echo "================================================================"
    echo "CoolerDash installed successfully."
    echo "Set your Access Token in the CoolerDash Settings UI."
    echo "The token is auto-persisted to credentials.json on startup."
    echo "================================================================"
}

post_upgrade() {
    _ensure_credentials
    _set_permissions
    _refresh_coolercontrol

    echo "================================================================"
    echo "CoolerDash upgraded successfully."
    echo "Note: config.json is preserved. If a new template was shipped,"
    echo "      compare it with /var/lib/coolercontrol/plugins/coolerdash/config.json.pacnew"
    echo "Note: credentials.json is never overwritten by updates."
    echo "================================================================"
}

post_remove() {
    _refresh_coolercontrol
    echo "================================================================"
    echo "CoolerDash removed."
    echo "================================================================"
}