#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source /usr/share/yunohost/helpers

# Stop script if errors
ynh_abort_if_errors

# Import common fonctions
source ./psql.sh
source ./experimental_helper.sh
source ./_common.sh

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

app=$YNH_APP_INSTANCE_NAME

#=================================================
# SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
#=================================================

show_config() {
    # here you are supposed to read some config file/database/other then print the values
    # echo "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"
    echo "YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_SERVER_STATISTICS=$(ynh_app_setting_get --app $app --key report_stats)"

    backup_before_upgrade=$(ynh_app_setting_get --app $app --key disable_backup_before_upgrade)
    if [[ ${backup_before_upgrade:-0} -eq 1 ]]
    then
        echo "YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE=False"
    else
        echo "YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE=True"
    fi
    is_public=$(ynh_app_setting_get --app $app --key is_public)
    if [[ ${is_public} -eq 1 ]]
    then
        echo "YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_IS_PUBLIC=False"
    else
        echo "YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_IS_PUBLIC=True"
    fi
}

#=================================================
# MODIFY THE CONFIGURATION
#=================================================

apply_config() {
    ynh_app_setting_set --app $app --key report_stats --value $YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_SERVER_STATISTICS

    if ${YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE,,}
    then
        ynh_app_setting_set --app $app --key disable_backup_before_upgrade --value 0
    else
        ynh_app_setting_set --app $app --key disable_backup_before_upgrade --value 1
    fi

    if ${YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_IS_PUBLIC,,}
    then
        ynh_app_setting_set --app $app --key is_public --value 1
    else
        ynh_app_setting_set --app $app --key is_public --value 0
    fi

    domain=$(ynh_app_setting_get --app $app --key special_domain)
    server_name=$(ynh_app_setting_get --app $app --key server_name)
    synapse_db_pwd=$(ynh_app_setting_get --app $app --key synapse_db_pwd)
    is_public=$(ynh_app_setting_get --app $app --key is_public)
    port=$(ynh_app_setting_get --app $app --key synapse_port)
    synapse_tls_port=$(ynh_app_setting_get --app $app --key synapse_tls_port)
    turnserver_tls_port=$(ynh_app_setting_get --app $app --key turnserver_tls_port)
    turnserver_pwd=$(ynh_app_setting_get --app $app --key turnserver_pwd)
    registration_shared_secret=$(ynh_app_setting_get --app $app --key registration_shared_secret)
    form_secret=$(ynh_app_setting_get --app $app --key form_secret)
    report_stats=$(ynh_app_setting_get --app $app --key report_stats)
    synapse_user="matrix-$app"
    synapse_db_name="matrix_$app"
    synapse_db_user="matrix_$app"

    # Configure Synapse

    # WARNING : theses command are used in INSTALL, UPGRADE, CONFIG (3 times)
    # For any update do it in all files

    homeserver_config_path="/etc/matrix-$app/homeserver.yaml"

    ynh_backup_if_checksum_is_different "$homeserver_config_path"

    cp ../conf/homeserver.yaml "$homeserver_config_path"
    cp ../conf/log.yaml /etc/matrix-$app/log.yaml

    ynh_replace_string --match_string __APP__ --replace_string $app --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __DOMAIN__ --replace_string $domain --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __SERVER_NAME__ --replace_string $server_name --target_file "$homeserver_config_path"   
    ynh_replace_string --match_string __SYNAPSE_DB_USER__ --replace_string $synapse_db_user --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __SYNAPSE_DB_PWD__ --replace_string $synapse_db_pwd --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __PORT__ --replace_string $port --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __TLS_PORT__ --replace_string $synapse_tls_port --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __TURNSERVER_TLS_PORT__ --replace_string $turnserver_tls_port --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __TURNPWD__ --replace_string $turnserver_pwd --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __REGISTRATION_SECRET__ --replace_string "$registration_shared_secret" --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __FORM_SECRET__ --replace_string "$form_secret" --target_file "$homeserver_config_path"
    ynh_replace_string --match_string __REPORT_STATS__ --replace_string "$report_stats" --target_file "$homeserver_config_path"

    if [ "$is_public" = "0" ]
    then
        ynh_replace_string __ALLOWED_ACCESS__ False "$homeserver_config_path"
    else
        ynh_replace_string __ALLOWED_ACCESS__ True "$homeserver_config_path"
    fi

    ynh_store_file_checksum --file "$homeserver_config_path"
    setfacl -R -m user:turnserver:rX  /etc/matrix-$app

    systemctl restart matrix-$app
}

#=================================================
# GENERIC FINALIZATION
#=================================================
# SELECT THE ACTION FOLLOWING THE GIVEN ARGUMENT
#=================================================
case $1 in
    show) show_config;;
    apply) apply_config;;
esac