# sqlite db replace function
replace_in_sqlite_db() {
    local DB_PATH="$1"
    local OLD_STRING="$2"
    local NEW_STRING="$3"

    # Check if the database file exists
    if [ ! -f "$DB_PATH" ]; then
        echo "Error: Database file '$DB_PATH' does not exist."
        exit 1
    fi

    # Check if jq is installed
    if ! command -v jq &> /dev/null; then
        echo "Error: 'jq' is not installed. Please install it first (e.g., 'sudo apt install jq')."
        exit 1
    fi

    echo "Starting JSON-aware replacement of '$OLD_STRING' with '$NEW_STRING' in '$DB_PATH'..."

    # Create a backup of the original database
    local BACKUP_PATH="${DB_PATH}.bak"
    cp "$DB_PATH" "$BACKUP_PATH"

    # Dump the database to SQL
    local DUMP_PATH="${DB_PATH}.sql"
    sqlite3 "$DB_PATH" ".dump" > "$DUMP_PATH"

    # Create a temporary file for the modified SQL dump
    local MODIFIED_DUMP_PATH="${DB_PATH}.modified.sql"

    # Process the SQL dump line by line
    while IFS= read -r line; do
        # Check if the line contains JSON data (simplistic check for quotes and brackets)
        if [[ "$line" =~ [\"{][^"\{]*["\}][^"\{]*$OLD_STRING[^"\{]*[\}"] ]]; then
            # Use jq to replace strings in JSON fields
            echo "$line" | jq --arg old_str "$OLD_STRING" --arg new_str "$NEW_STRING" '
                walk(if type == "string" then gsub($old_str; $new_str) else . end)
            ' > /dev/null 2>&1

            # If jq fails (not valid JSON), fall back to sed
            if [ $? -ne 0 ]; then
                echo "$line" | sed "s|$OLD_STRING|$NEW_STRING|g"
            else
                echo "$line" | jq --arg old_str "$OLD_STRING" --arg new_str "$NEW_STRING" '
                    walk(if type == "string" then gsub($old_str; $new_str) else . end)
                '
            fi
        else
            # Use sed for non-JSON fields
            echo "$line" | sed "s|$OLD_STRING|$NEW_STRING|g"
        fi
    done < "$DUMP_PATH" > "$MODIFIED_DUMP_PATH"

    # Create a new database from the modified SQL dump
    local NEW_DB_PATH="${DB_PATH}.new"
    sqlite3 "$NEW_DB_PATH" < "$MODIFIED_DUMP_PATH"

    # Replace the original database with the new one
    mv "$NEW_DB_PATH" "$DB_PATH"

    # Clean up temporary files
    rm "$DUMP_PATH"
    rm "$MODIFIED_DUMP_PATH"

    echo "Replacement completed in '$DB_PATH'. Original database backed up to '$BACKUP_PATH'."
}

#set script directory
scriptdir="$(dirname "$(realpath "$0")")"

#example usage: replace_in_sqlite_db "database.sqlite" "Europe/Amsterdam" "UTC"
cp $scriptdir/stacks/npm/data/database-pre.sqlite $scriptdir/stacks/npm/data/database.sqlite
replace_in_sqlite_db "$scriptdir/stacks/npm/data/database.sqlite" "sdgserver.online" "?domain?"
replace_in_sqlite_db "$scriptdir/stacks/npm/data/database.sqlite" "192.168.2.132" "?localip?"
replace_in_sqlite_db "$scriptdir/stacks/npm/data/database.sqlite" "z5fGWz2i0q" "?adminpass?"
replace_in_sqlite_db "$scriptdir/stacks/npm/data/database.sqlite" "0.0.0.0/0" "?localip?"