#!/bin/bash

#=================================================
# GENERIC START
#=================================================

# Import common cmd
source ./experimental_helper.sh
source ./_common.sh
source ./ynh_setup_source

# Source YunoHost helpers
source /usr/share/yunohost/helpers

seafile_version=$(ynh_app_upstream_version)
seafile_code="$install_dir/seafile_image/opt/seafile/seafile-server-$seafile_version"

ensure_vars_set

#=================================================
# STANDARD MODIFICATIONS
#=================================================

ynh_script_progression --message="Creating base directory..."

if [ -n "$(ls -A "$data_dir")" ]; then
    old_data_dir_path="${data_dir}_$(date '+%Y%m%d.%H%M%S')"
    ynh_print_warn "Data directory was not empty. Data was moved to $old_data_dir_path"
    mkdir -p "$old_data_dir_path"
    mv -t "$old_data_dir_path" "$data_dir"/*
fi

mkdir -p /var/log/"$app"
mkdir -p "$data_dir"/{seafile-data,seahub-data}
mkdir -p "$install_dir"/{conf,ccnet}

# Download new version from sources
ynh_script_progression --message="Installing sources files..." --weight=7
install_source

# init databases
ynh_script_progression --message="Configuring MySQL database..."
db_user=seafile
ynh_''mysql_setup_db --db_user="$db_user" --db_name=ccnetdb --db_pwd="$db_pwd"
ynh_''mysql_setup_db --db_user="$db_user" --db_name=seahubdb --db_pwd="$db_pwd"

ynh_script_progression --message="Configuring application..." --weight=3

# Run install script
set_permission
ynh_replace_special_string --match_string='seafile_config.seafile_dir = seafile_config.validate_seafile_dir(seafile_dir)' \
                           --replace_string 'seafile_config.seafile_dir = seafile_dir' \
                           --target_file "$seafile_code/setup-seafile-mysql.py"
run_seafile_cmd bash "/opt/seafile/seafile-server-$seafile_version/setup-seafile-mysql.sh" auto \
    --server-name "$server_name" \
    --server-ip "$domain" \
    --fileserver-port "$port_fileserver" \
    --use-existing-db 1 \
    --mysql-host localhost \
    --mysql-port 3306 \
    --mysql-user "$db_user" \
    --mysql-user-passwd "$db_pwd" \
    -s "$db_name" \
    -c ccnetdb \
    -b seahubdb

# Retrive values from auto generated config file
seahub_secret_key=$(grep -P 'SECRET_KEY\s*=\s*".+"' "$install_dir"/conf/seahub_settings.py | cut -d'"' -f2)
ynh_app_setting_set --app="$app" --key=seahub_secret_key --value="$seahub_secret_key"

# Update seafile config files
ynh_add_jinja_config --template=seahub_settings.py --destination="$install_dir"/conf/seahub_settings.py
ynh_add_config --template=seafile.conf --destination="$install_dir"/conf/seafile.conf
ynh_add_config --template=ccnet.conf --destination="$install_dir"/conf/ccnet.conf
ynh_add_config --template=gunicorn.conf.py --destination="$install_dir"/conf/gunicorn.conf.py
ynh_add_config --template=seafdav.conf --destination="$install_dir"/conf/seafdav.conf
ynh_add_config --template=seafevents.conf --destination="$install_dir"/conf/seafevents.conf

# Configure admin info
# It will be used the first start
admin_email=$(ynh_user_get_info --username="$admin" --key='mail')
cp ../conf/create_admin.json $install_dir/conf/admin.txt
ynh_replace_string         --match_string=__ADMIN__ --replace_string="$admin_email" --target_file=$install_dir/conf/admin.txt
ynh_replace_special_string --match_string=__PASSWORD__ --replace_string="$admin_password" --target_file=$install_dir/conf/admin.txt

# Use symlink to store data
if [ -e "$install_dir"/seafile-data ]; then
    mv -t "$data_dir"/seafile-data "$install_dir"/seafile-data/*
    ynh_secure_remove --file="$install_dir"/seafile-data
fi
if [ -e "$install_dir"/seahub-data ]; then
    mv -t "$data_dir"/seahub-data "$install_dir"/seahub-data/*
    ynh_secure_remove --file="$install_dir"/seahub-data
fi
if [ -e "$install_dir"/logs ]; then
    mv -t /var/log/"$app" "$install_dir"/logs/*
    ynh_secure_remove --file="$install_dir"/logs
fi
ln -s "$data_dir"/seafile-data "$install_dir"/seafile-data
ln -s "$data_dir"/seahub-data "$install_dir"/seahub-data
ln -s /var/log/"$app" "$install_dir"/logs

# Fix local warning
ynh_replace_string --match_string=en_US.UTF-8 --replace_string="${LANG:-'en_US.UTF-8'}" --target_file="$seafile_code/seahub.sh"

# Add Seafile Server to startup
ynh_script_progression --message="Configuring a systemd service..."
ynh_add_systemd_config --service=seafile --template=seafile.service
ynh_add_systemd_config --service=seahub --template=seahub.service

# register yunohost service
yunohost service add seafile --description 'Main service for seafile server.'
yunohost service add seahub --description 'Seafile server web interface.'

# Config nginx
ynh_script_progression --message="Configuring nginx..."
ynh_add_nginx_config

# Add logrotate
ynh_script_progression --message="Configuring log rotation..."
ynh_use_logrotate --logfile=/var/log/"$app"

# Add fail2ban
ynh_script_progression --message="Configuring fail2ban..."
ynh_add_fail2ban_config --use_template

#=================================================
# GENERIC FINALIZATION
#=================================================

# Set all permissions
ynh_script_progression --message="Protecting directory..."
set_permission

# Start service
sleep 3

ynh_script_progression --message="Starting seafile services..."
ynh_systemd_action --service_name=seafile -l "spawned seaf-server, pid " -p /var/log/seafile/controller.log
sleep 2
ynh_systemd_action --service_name=seahub -l "Started Seafile hub." -p "systemd"
sleep 2

ynh_script_progression --message="Installation of $app completed" --last