# 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"

    # Escape single quotes for SQL
    local OLD_STRING_ESC=$(printf '%s\n' "$OLD_STRING" | sed "s/'/''/g")
    local NEW_STRING_ESC=$(printf '%s\n' "$NEW_STRING" | sed "s/'/''/g")

    # 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 non-BLOB columns in the table
        sqlite3 "$DB_PATH" "PRAGMA table_info($TABLE);" | awk -F'|' '
        {
            if ($3 != "BLOB") {
                print $2
            }
        }' | while read -r COLUMN; do
            if [ -n "$COLUMN" ]; then
                echo "  Processing column: $COLUMN"

                # Update only rows where the column contains OLD_STRING
                sqlite3 "$DB_PATH" "
                UPDATE $TABLE
                SET $COLUMN = replace(CAST($COLUMN AS TEXT), '$OLD_STRING_ESC', '$NEW_STRING_ESC')
                WHERE CAST($COLUMN AS TEXT) LIKE '%$OLD_STRING_ESC%';
                "
            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?"