#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Interactive install functions
#
# License
# =======
#
# Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

function interactive_configuration_remote_backups {
    if [[ $SYSTEM_TYPE == "mesh"* ]]; then
        return
    fi
    if [ ! -f /usr/local/bin/${PROJECT_NAME}-remote ]; then
        if [ ! -f /usr/bin/${PROJECT_NAME}-remote ]; then
            echo $"The command ${PROJECT_NAME}-remote was not found"
            exit 87354
        fi
    fi
    ${PROJECT_NAME}-remote -u $MY_USERNAME -l $FRIENDS_SERVERS_LIST -m $MINIMUM_PASSWORD_LENGTH -r yes
    if [ ! "$?" = "0" ]; then
        echo $'Command failed:'
        echo ''
        echo $"  ${PROJECT_NAME}-remote -u $MY_USERNAME -l $FRIENDS_SERVERS_LIST -m $MINIMUM_PASSWORD_LENGTH -r yes"
        echo ''
        exit 65892
    fi
}

function interactive_configuration {
    if [ ! -f /usr/local/bin/${PROJECT_NAME}-config ]; then
        if [ ! -f /usr/bin/${PROJECT_NAME}-config ]; then
            echo $"The command ${PROJECT_NAME}-config was not found"
            exit 63935
        fi
    fi
    if [ -f /tmp/meshuserdevice ]; then
        rm -f /tmp/meshuserdevice
    fi

    if [[ $ONION_ONLY == "no" ]]; then
        if [[ $MINIMAL_INSTALL == "no" ]]; then
            ${PROJECT_NAME}-config \
                           -f $CONFIGURATION_FILE \
                           -w $PROJECT_WEBSITE \
                           -m $MINIMUM_PASSWORD_LENGTH
        else
            ${PROJECT_NAME}-config \
                           -f $CONFIGURATION_FILE \
                           -w $PROJECT_WEBSITE \
                           -m $MINIMUM_PASSWORD_LENGTH \
                           --minimal "yes"
        fi
    else
        ${PROJECT_NAME}-config \
                       -f $CONFIGURATION_FILE \
                       -w $PROJECT_WEBSITE \
                       -m $MINIMUM_PASSWORD_LENGTH \
                       --onion "yes"
    fi
    if [ -f /tmp/meshuserdevice ]; then
        # mesh network user device installation
        rm -f /tmp/meshuserdevice
        exit 0
    fi
    if [ ! "$?" = "0" ]; then
        echo $'Command failed:'
        echo ''
        echo $"  ${PROJECT_NAME}-config -u $MY_USERNAME -f $CONFIGURATION_FILE -w $PROJECT_WEBSITE -b $PROJECT_BITMESSAGE -m $MINIMUM_PASSWORD_LENGTH --minimal [yes|no]"
        echo ''
        exit 73594
    fi

    if [[ $SYSTEM_TYPE == "mesh"* ]]; then
        FRIENDS_SERVERS_LIST=/home/$MY_USERNAME/backup.list

        dialog --title $"Encrypted backup to other servers" \
               --backtitle $"${PROJECT_NAME} Configuration" \
               --defaultno \
               --yesno $"\nDo you wish to configure some remote backup locations?" 7 60
        sel=$?
        case $sel in
            0) interactive_configuration_remote_backups;;
        esac
    fi
}

function interactive_site_details {
    site_name="$1"
    site_name_upper=${site_name^^}

    SITE_BACKTITLE=$"Freedombone Configuration"
    SITE_CONFIG_TITLE=$"${site_name^} Configuration"
    SITE_FORM_TEXT=$"\nPlease enter your ${site_name^} details.\n\nIMPORTANT: This should be a domain name which is supported by Let's Encrypt:"
    SITE_DOMAIN_NAME=
    SITE_CODE=
    SITE_DETAILS_COMPLETE=
    while [ ! $SITE_DETAILS_COMPLETE ]
    do
        data=$(tempfile 2>/dev/null)
        trap "rm -f $data" 0 1 2 5 15
        if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
            dialog --backtitle "$SITE_BACKTITLE" \
                   --title "$SITE_CONFIG_TITLE" \
                   --form "$SITE_FORM_TEXT" 14 55 3 \
                   $"Domain:" 1 1 "$(grep '${site_name_upper}_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 1 16 33 40 \
                   $"Code:" 2 1 "$(grep '${site_name_upper}_CODE' temp.cfg | awk -F '=' '{print $2}')" 2 16 33 255 \
                   2> $data
        else
            dialog --backtitle "$SITE_BACKTITLE" \
                   --title "$SITE_CONFIG_TITLE" \
                   --form "$SITE_FORM_TEXT" 11 55 3 \
                   $"Domain:" 1 1 "$(grep '${site_name_upper}_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 1 16 33 40 \
                   2> $data
        fi
        sel=$?
        case $sel in
            1) exit 1;;
            255) exit 1;;
        esac
        SITE_DOMAIN_NAME=$(cat $data | sed -n 1p)
        if [ $SITE_DOMAIN_NAME ]; then
            TEST_DOMAIN_NAME=$SITE_DOMAIN_NAME
            validate_domain_name
            if [[ $TEST_DOMAIN_NAME != $SITE_DOMAIN_NAME ]]; then
                SITE_DOMAIN_NAME=
                dialog --title $"Domain name validation" --msgbox "$TEST_DOMAIN_NAME" 15 50
            else
                if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
                    SITE_CODE=$(cat $data | sed -n 2p)
                    validate_freedns_code "$SITE_CODE"
                    if [ ! $VALID_CODE ]; then
                        SITE_DOMAIN_NAME=
                    fi
                fi
            fi
        fi
        if [ $SITE_DOMAIN_NAME ]; then
            SITE_DETAILS_COMPLETE="yes"
        fi
    done

    # save the results in the config file
    write_config_param "${site_name_upper}_DOMAIN_NAME" "$SITE_DOMAIN_NAME"
    if [ $SITE_CODE ]; then
        write_config_param "${site_name_upper}_CODE" "$SITE_CODE"
    fi
}

function interactive_site_details_with_title {
    site_name="${1}"

    SITE_BACKTITLE=$"Freedombone Configuration"
    SITE_CONFIG_TITLE=$"${site_name^} Configuration"
    SITE_FORM_TEXT=$"\nPlease enter your ${site_name^} details.\n\nIMPORTANT: This should be a domain name which is supported by Let's Encrypt:"
    SITE_TITLE=$2
    SITE_DOMAIN_NAME=$3
    SITE_CODE=$4
    SITE_DETAILS_COMPLETE=
    while [ ! $SITE_DETAILS_COMPLETE ]
    do
        data=$(tempfile 2>/dev/null)
        trap "rm -f $data" 0 1 2 5 15
        if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
                dialog --backtitle $"Freedombone Configuration" \
                       --title "$SITE_BACKTITLE" \
                       --form "$SITE_FORM_TEXT" 14 55 4 \
                       $"Title:" 1 1 "$(grep '$SITE_TITLE' temp.cfg | awk -F '=' '{print $2}')" 1 16 33 40 \
                       $"Domain:" 2 1 "$(grep '$SITE_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 2 16 33 40 \
                       $"Code:" 3 1 "$(grep '$SITE_CODE' temp.cfg | awk -F '=' '{print $2}')" 3 16 33 255 \
                       2> $data
        else
            dialog --backtitle "$SITE_BACKTITLE" \
                   --title "$SITE_CONFIG_TITLE" \
                   --form "$SITE_FORM_TEXT" 11 55 3 \
                   $"Title:" 1 1 "$(grep '$SITE_TITLE' temp.cfg | awk -F '=' '{print $2}')" 1 16 33 40 \
                   $"Domain:" 2 1 "$(grep '$SITE_DOMAIN_NAME' temp.cfg | awk -F '=' '{print $2}')" 2 16 33 40 \
                   2> $data
        fi
        sel=$?
        case $sel in
            1) exit 1;;
            255) exit 1;;
        esac
        ${!SITE_TITLE}=$(cat $data | sed -n 1p)
        ${!SITE_DOMAIN_NAME}=$(cat $data | sed -n 2p)
        if [ ${!SITE_DOMAIN_NAME} ]; then
            TEST_DOMAIN_NAME=${!SITE_DOMAIN_NAME}
            validate_domain_name
            if [[ $TEST_DOMAIN_NAME != ${!SITE_DOMAIN_NAME} ]]; then
                ${!SITE_DOMAIN_NAME}=
                dialog --title $"Domain name validation" --msgbox "$TEST_DOMAIN_NAME" 15 50
            else
                if [[ $DDNS_PROVIDER == "default@freedns.afraid.org" ]]; then
                    ${!SITE_CODE}=$(cat $data | sed -n 3p)
                    validate_freedns_code "${!SITE_CODE}"
                    if [ ! $VALID_CODE ]; then
                        ${!SITE_DOMAIN_NAME}=
                    fi
                fi
            fi
        fi
        if [ ${!SITE_TITLE} ]; then
            if [ ${!SITE_DOMAIN_NAME} ]; then
                SITE_DETAILS_COMPLETE="yes"
            fi
        fi
    done

    # save the results in the config file
    write_config_param "$SITE_TITLE" "${!SITE_TITLE}"
    write_config_param "$SITE_DOMAIN_NAME" "${!SITE_DOMAIN_NAME}"
    if [ ${!SITE_CODE} ]; then
        write_config_param "$SITE_CODE" "${!SITE_CODE}"
    fi
}

# NOTE: deliberately no exit 0