#!/bin/bash

runReinstall()
{
    isHeader "Reinstalling LibrePortal"

    # Release mode: re-fetch the verified tarball instead of re-cloning from git.
    if [[ "$CFG_INSTALL_MODE" == "release" ]]; then
        if declare -f lpFetchRelease >/dev/null 2>&1 && lpFetchRelease; then
            runSystem cp -f "$script_dir/init.sh" /root/ 2>/dev/null || true
            runInstallOp chown -R "$sudo_user_name:$sudo_user_name" "$script_dir"
            isSuccessful "Re-fetched the verified release. Run 'libreportal run' to continue."
        else
            isError "Release re-fetch failed — install unchanged."
        fi
        return
    fi

    # Check if this is a local installation
    if [[ "$CFG_INSTALL_MODE" == "local" ]]; then
        echo "NOTICE: Local installation detected - cannot reinstall from Git."
        echo "To update a local installation, please update the files manually and rerun the init script."
        echo ""
        echo "Alternatively, you can switch to Git installation by:"
        echo "1. Updating CFG_INSTALL_MODE to 'git' in config"
        echo "2. Setting Git credentials"
        echo "3. Running reinstall again"
    else
        gitCheckGitDetails;

        # Reset git
        local result=$(runAsManager rm -rf $script_dir)
        checkSuccess "Deleting all Git files"
        local result=$(createFolders "loud" $sudo_user_name "$script_dir")
        checkSuccess "Create the directory if it doesn't exist"

        # Validate non-empty input
        validate_input() {
            local input="$1"
            local prompt="$2"
            local error_message="${3:-Please enter a valid input.}"
            
            while [[ -z "$input" ]]; do
                read -p "$prompt" input
                if [[ -z "$input" ]]; then
                    echo "$error_message"
                fi
            done
            echo "$input"
        }

        # Git User
        if [[ -z "$CFG_GIT_USER" ]] || [[ "$CFG_GIT_USER" == "changeme" ]]; then
            CFG_GIT_USER=$(validate_input "" "Enter the Git username: " "Git username cannot be empty.")
            updateConfigOption "CFG_GIT_USER" "$CFG_GIT_USER"
        fi

        # Git Token
        if [[ -z "$CFG_GIT_KEY" ]] || [[ "$CFG_GIT_KEY" == "changeme" ]]; then
            CFG_GIT_KEY=$(validate_input "" "Enter your Git token: " "Git token cannot be empty.")
            updateConfigOption "CFG_GIT_KEY" "$CFG_GIT_KEY"
        fi

        # Git URL
        if [[ -z "$CFG_GIT_URL" ]] || [[ "$CFG_GIT_URL" == "changeme" ]]; then
            CFG_GIT_URL=$(validate_input "" "Enter the Git repository URL: " "Git URL cannot be empty.")
            updateConfigOption "CFG_GIT_URL" "$CFG_GIT_URL"
        fi

        # Strip http:// or https:// and .git from GIT_URL.
        CLEAN_GIT_URL=$(echo "$CFG_GIT_URL" | sed -E 's~^(https?://)?(.+?)\.git?$~\2~')

        # Create authenticated URLs
        AUTH_HTTPS_REPO_URL="https://${CFG_GIT_USER}:${CFG_GIT_KEY}@${CLEAN_GIT_URL}.git"
        AUTH_HTTP_REPO_URL="http://${CFG_GIT_USER}:${CFG_GIT_KEY}@${CLEAN_GIT_URL}.git"

        # Try HTTPS first
        if runAsManager git clone -q "$AUTH_HTTPS_REPO_URL" "$script_dir" 2>/dev/null; then
            runSystem cp -f "$script_dir/init.sh" /root/
            echo "SUCCESS: Git repository cloned via HTTPS into $script_dir."
            echo ""
            echo "SUCCESS: Reinstallation complete, you can now run the "libreportal run" command."
            echo ""
        else
            # If HTTPS fails, try HTTP
            if runAsManager git clone -q "$AUTH_HTTP_REPO_URL" "$script_dir" 2>/dev/null; then
                runSystem cp -f "$script_dir/init.sh" /root/
                echo "SUCCESS: Git repository cloned via HTTP into $script_dir."
                echo ""
                echo "SUCCESS: Reinstallation complete, you can now run the "libreportal run" command."
                echo ""
            else
                isError " Authentication failed. Please check your credentials."
                exit 1;
            fi
        fi
    fi
}