#!/bin/bash

# ****************************************************************************************************
# *      ______                                                  _                       _           *
# *     |  ____|                                           /\   (_)                     | |          *
# *     | |__  _   _ _ __ ___  _ __   ___  __ _ _ __      /  \   _ _ __ _ __   ___  _ __| |_ ___     *
# *     |  __|| | | | '__/ _ \| '_ \ / _ \/ _` | '_ \    / /\ \ | | '__| '_ \ / _ \| '__| __/ __|    *
# *     | |___| |_| | | | (_) | |_) |  __/ (_| | | | |  / ____ \| | |  | |_) | (_) | |  | |_\__ \    *
# *     |______\__,_|_|  \___/| .__/ \___|\__,_|_| |_| /_/    \_\_|_|  | .__/ \___/|_|   \__|___/    *
# *                           | |                                      | |                           *
# *                           |_|                                      |_|                           *
# *                                                                                                  *
# ****************************************************************************************************

# This file is part of the European Airports Project, a free, collaborative platform of airport data 
# extending beyond the official AIPs.

# Copyright (C) 2023

# Florian Meissner <florianmeissner@gmx.de>

# This program is free software: you can redistribute it and/or modify it under the 
# terms of the GNU General Public License as published by the Free Software Foundation, either 
# version 3 of the License, or (at your option) any later version. This program is distributed in the 
# hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 
# details. You should have received a copy of the GNU General Public License along with this program. 
# (license.md in the root folder of this project) If not, see <http://www.gnu.org/licenses/>.


# ****************************************************************************************
# *      ,__ __                          ____  , __     ____                             *
# *     /|  |  |              o         (|   \/|/  \   (|   \                            *
# *      |  |  |   __,   ,_       __,    |    || __/    |    |        _  _  _     _      *
# *      |  |  |  /  |  /  |  |  /  |   _|    ||   \   _|    ||   |  / |/ |/ |  |/ \_    *
# *      |  |  |_/\_/|_/   |_/|_/\_/|_/(/\___/ |(__/  (/\___/  \_/|_/  |  |  |_/|__/     *
# *                                                                            /|        *
# *                                                                            \|        *
# ****************************************************************************************

# Dump database contents to be later backed up. The dump will not contain any DROP or CREATE 
# statements in order not to damage any existing data. This way `dbImport.sh` can use these files
# and run them over an eventually existing DB during the Docker entryint script.

DUMP_DIR="/tmp/mariadb-dump"
DB_USER=`cat /run/secrets/rootUser`
DB_PW=`cat /run/secrets/rootPw`
DB_NAMES=(
    #"example-db"
    "eaMain" 
)
ERROR_LOG="/var/log/mysql/dump.log"

# Set excluded database tables here. Use an index for each database and separate tables by spaces.
declare -A EXCLUDED_TABLES=( 
    #[example-db]="table1 table2 table3"
    #[toplist]="cty"
)


###################################################################################################


mkdir -p $DUMP_DIR

for db in ${DB_NAMES[@]}; do
    
    # Assemble base command
    read -r -d '' cmd << EOF
        mariadb-dump 
            --single-transaction 
            --no-create-db 
            --insert-ignore 
            --user=$DB_USER 
            --password=$DB_PW 
            --databases $db 
            --dump-date 
            --log-error=$ERROR_LOG 
            --skip-add-drop-table 
            --skip-extended-insert 
            --no-create-info
EOF
    
    # Append excluded tables
    for tbl in ${EXCLUDED_TABLES[$db]}; do
        cmd="${cmd} --ignore-table=${db}.${tbl}"
    done

    $cmd > $DUMP_DIR/$db.sql
done