#!/bin/bash
source /usr/share/yunohost/helpers
#source _common.sh

#================================================
# COPY of _common.sh (workaround for a bug)
#================================================
log() {
  echo "${1}"
}

info() {
  log "[INFO] ${1}"
}

warn() {
  log "[WARN] ${1}"
}

err() {
  log "[ERR] ${1}"
}
ynh_exit_properly () {  
    exit_code=$?
    if [ "$exit_code" -eq 0 ]; then
            exit 0  
    fi
    trap '' EXIT
    set +eu
    echo -e "\e[91m \e[1m"  
    err "$app script has encountered an error."

    if type -t CLEAN_SETUP > /dev/null; then
        CLEAN_SETUP
    fi

    ynh_die
}

ynh_trap_on () {
    set -eu
    trap ynh_exit_properly EXIT # Capturing exit signals on shell script
}

ynh_path_validity () {
    sudo yunohost app checkurl $1 -a $app
}

ynh_read_json () {
    sudo python3 -c "import sys, json;print(json.load(open('$1'))['$2'])"
}

ynh_read_manifest () {
    ynh_read_json '../manifest.json' "$1"
}

ynh_app_dependencies  (){
    export dependencies=$1
    export project_url=$(ynh_read_manifest 'url')
    export version=$(ynh_read_manifest 'version')
    export dep_app=${app/__/-}
    mkdir -p conf
    cat > ../conf/app-ynh-deps.control.j2 << EOF
Section: misc
Priority: optional
Homepage: {{ project_url }}
Standards-Version: 3.9.2

Package: {{ dep_app }}-ynh-deps
Version: {{ version }} 
Depends: {{ dependencies }}
Architecture: all
Description: meta package for {{ app }} (YunoHost app) dependencies
 This meta-package is only responsible of installing its dependencies.
EOF
        
    ynh_configure app-ynh-deps.control ./$dep_app-ynh-deps.control
    ynh_package_install_from_equivs ./$dep_app-ynh-deps.control \
        || ynh_die "Unable to install dependencies"
}

ynh_system_user_create () {
    if ! ynh_system_user_exists "$1"    # Check if the user exists on the system
    then    # If the user doesn't exist
        if [ $# -ge 2 ]; then   # If a home dir is mentioned
            user_home_dir="-d $2"
        else
            user_home_dir="--no-create-home"
        fi
        sudo useradd $user_home_dir --system --user-group $1 --shell /usr/sbin/nologin || ynh_die "Unable to create $1 system account"
    fi
}


ynh_set_default_perm () {
    local DIRECTORY=$1
    # Set permissions
    sudo chown -R $app:$app $DIRECTORY
    sudo chmod -R 664 $DIRECTORY
    sudo find $DIRECTORY -type d -print0 | xargs -0 sudo chmod 775 \
	    || echo "No file to modify"

}
ynh_sso_access () {
    ynh_app_setting_set $app unprotected_uris "/"

    if [[ $is_public -eq 0 ]]; then
        ynh_app_setting_set $app protected_uris "$1"
    fi
    sudo yunohost app ssowatconf
}

ynh_check_restore () {
    for dest in $(cat ./list| cut -d ' ' -f2);
    do
        [[ -e $dest ]] && ynh_die \
"The destination directory '$dest' already exists.\
You should safely delete it before restoring this app."
    done
}

ynh_restore () {
    while IFS= read -r instruction
    do
        sudo cp -a ./$instruction
    done < ./list
}    
#===============================================


ynh_trap_on

export app=$YNH_APP_INSTANCE_NAME
user=$app

export domain=$(ynh_app_setting_get $app domain)
export path=$(ynh_app_setting_get $app path)
export admin=$(ynh_app_setting_get $app admin)
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
export local_path=$(ynh_app_setting_get $app local_path)
export is_public=$(ynh_app_setting_get $app is_public)
export prefix=$(ynh_app_setting_get $app prefix)
dbname=$app
dbuser=$user

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================

ynh_path_validity "$domain$path"
ynh_check_restore

#=================================================
# RESTORE THE APP BY MODIFYING THE SYSTEM
#=================================================
ynh_app_dependencies php5-imap

ynh_system_user_create "$user" "$local_path"

# Create and restore the database
ynh_mysql_create_db "$dbname" "$dbuser" "$dbpass"
ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname" < ./dump.sql

# Restore file
ynh_restore

# Fix app ownerships & permissions
ynh_set_default_perm $local_path
sudo chmod -R u+w $local_path/tmp
sudo chmod -R u+w $local_path/upload
sudo chmod -R u+w $local_path/application/config/

ynh_sso_access "/index.php?r=admin,/index.php?r=plugins,/scripts"

# Reload services
sudo service php5-fpm restart || true
sudo service nginx reload || true