# 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

    echo "Starting 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"

    # Begin a transaction
    sqlite3 "$DB_PATH" "BEGIN TRANSACTION;"

    # Get a list of all tables in the database
    local TABLES
    TABLES=$(sqlite3 "$DB_PATH" ".tables")

    # Loop through each table
    for TABLE in $TABLES; do
        echo "Processing table: $TABLE"

        # Get a list of all columns in the table
        sqlite3 "$DB_PATH" "PRAGMA table_info($TABLE);" | awk -F'|' '{print $2","$3}' | while IFS=, read -r COLUMN COLUMN_TYPE; do
            # Skip empty lines
            if [ -z "$COLUMN" ]; then
                continue
            fi

            echo "  Processing column: $COLUMN (type: $COLUMN_TYPE)"

            # Skip BLOB columns to avoid corruption
            if [[ "$COLUMN_TYPE" == "BLOB" ]]; then
                echo "    Skipping BLOB column: $COLUMN"
                continue
            fi

            # Check if the column might contain JSON data
            local IS_JSON=$(sqlite3 "$DB_PATH" "SELECT COUNT(*) FROM $TABLE WHERE json_valid($COLUMN) = 1 LIMIT 1;")

            if [ "$IS_JSON" -gt 0 ]; then
                echo "    Detected JSON data in column $COLUMN. Using json_replace()."

                # Use json_replace for JSON columns
                sqlite3 "$DB_PATH" "
                UPDATE $TABLE
                SET $COLUMN = json_replace($COLUMN, '$OLD_STRING', '$NEW_STRING')
                WHERE json_valid($COLUMN) = 1 AND json_type($COLUMN) IS NOT NULL;
                "
            else
                echo "    Column $COLUMN is not JSON. Using replace()."

                # Use replace for non-JSON columns
                sqlite3 "$DB_PATH" "
                UPDATE $TABLE
                SET $COLUMN = replace($COLUMN, '$OLD_STRING', '$NEW_STRING')
                WHERE $COLUMN LIKE '%$OLD_STRING%';
                "
            fi
        done
    done

    # Commit the transaction
    sqlite3 "$DB_PATH" "COMMIT;"

    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?"