#!/bin/bash

set -euo pipefail

# Retrieve arguments
domain=$1
path=$2
admin=$3
is_public=$4

# Load common variables
source ./_common.sh

# Set app specific variables
app=${APPNAME:-gogs}
dbname=$app
dbuser=$app

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

# TODO: Check domain/path availability with app helper
sudo yunohost app checkurl "${domain}${path}" -a "$app" \
  || ynh_die "The path ${domain}${path} is not available for app installation."

# Check user parameter
ynh_user_exists "$admin" \
  || ynh_die "The chosen admin user does not exist."

# Check destination directory
DESTDIR="/opt/$app"
[[ -d $DESTDIR ]] && ynh_die \
"The destination directory '$DESTDIR' already exists.\
 You should safely delete it before installing this app."

# Generate random password and key
dbpass=$(ynh_string_random)
key=$(ynh_string_random)

# Initialize database and store mysql password for upgrade
ynh_mysql_create_db "$dbname" "$dbuser" "$dbpass"
ynh_app_setting_set $app mysqlpwd $dbpass
ynh_app_setting_set $app adminusername $admin
ynh_app_setting_set $app is_public $is_public
ynh_app_setting_set $app secret_key $is_public

# Add users
id -g "$app" &>/dev/null || sudo addgroup "$app" --system --quiet
id -u "$app" &>/dev/null || sudo adduser "$app" \
    --ingroup "$app" --system --quiet --shell /bin/bash

# create needed directories
REPO_PATH=/home/"$app"/repositories
DATA_PATH=/home/"$app"/data
sudo mkdir -p "$DESTDIR"/custom/conf "$REPO_PATH" "$DATA_PATH"/avatars \
              "$DATA_PATH"/avatars "$DATA_PATH"/attachments /var/log/"$app"
sudo chown -R "$app":"$app" /home/"$app" /var/log/"$app"

# Install Gogs
extract_gogs $DESTDIR

# Configure gogs with app.ini file
sudo cp ../conf/app.ini "$DESTDIR"/custom/conf
sudo sed -i "s@yuno_repo_path@"$REPO_PATH"@g" "$DESTDIR"/custom/conf/app.ini
if [ "$path" = "/" ]
then
    sudo sed -i "s@yuno_url@$domain@g" "$DESTDIR"/custom/conf/app.ini
else
    sudo sed -i "s@yuno_url@$domain${path%/}@g" "$DESTDIR"/custom/conf/app.ini
fi
sudo sed -i "s@yuno_dbpdw@$dbpass@g" "$DESTDIR"/custom/conf/app.ini
sudo sed -i "s@yuno_dbuser@$dbuser@g" "$DESTDIR"/custom/conf/app.ini
sudo sed -i "s@yuno_domain@$domain@g" "$DESTDIR"/custom/conf/app.ini
sudo sed -i "s@yuno_key@$key@g" "$DESTDIR"/custom/conf/app.ini
sudo sed -i "s@yuno_data_path@$DATA_PATH@g" "$DESTDIR"/custom/conf/app.ini

# Configure logrotate
sudo cp ../conf/logrotate /etc/logrotate.d/"$app"

# Configure init script
sudo cp ../conf/gogs.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable "$app".service

# Start gogs for building mysql tables
sudo systemctl start "$app".service

# Wait till login_source mysql table is created
while ! $(ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname"  <<< "SELECT * FROM login_source;" &>/dev/null)
do
    sleep 2
done

# Add ldap config
sudo sed -i "s@yuno_admin@$admin@g" ../conf/login_source.sql
ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname" < ../conf/login_source.sql

# Add Gogs to YunoHost's monitored services
sudo yunohost service add "$app" --log /var/log/"$app"/"$app".log

# Modify Nginx configuration file and copy it to Nginx conf directory
sed -i "s@PATHTOCHANGE@${path%/}@g" ../conf/nginx.conf
if [ "$path" = "/" ]
then
    sed -i "s@COMMENT_IF_ROOT@#@g" ../conf/nginx.conf
else
    sed -i "s@COMMENT_IF_ROOT@@g" ../conf/nginx.conf
fi
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/"$app".conf

# Unprotect root from SSO if public
if [ "$is_public" = "Yes" ]
then
    ynh_app_setting_set $app unprotected_uris "/"
fi

# Reload services
sudo systemctl restart rsyslog.service || true
sudo systemctl reload nginx.service || true
sudo systemctl restart "$app".service || true