#!/bin/bash

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

source _common.sh
source ynh_mongo_db__2
source ynh_java
source /usr/share/yunohost/helpers

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
public_key=$YNH_APP_ARG_PUBLIC_KEY

### If it's a multi-instance app, meaning it can be installed several times independently
### The id of the app as stated in the manifest is available as $YNH_APP_ID
### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2"...)
### The app instance name is available as $YNH_APP_INSTANCE_NAME
###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
###    - ynhexample__{N} for the subsequent installations, with N=3,4...
### The app instance name is probably what interests you most, since this is
### guaranteed to be unique. This is a good unique identifier to define installation path,
### db names...
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=1
### About --weight and --time
### ynh_script_progression will show to your final users the progression of each scripts.
### In order to do that, --weight will represent the relative time of execution compared to the other steps in the script.
### --time is a packager option, it will show you the execution time since the previous call.
### This option is implied when running in CI_package_check, you can manually add it if you are manually testing the app.
### Use the execution time displayed in the CI report or by adding --time to the command, to estimate the weight of a step.
### A common way to do it is to set a weight equal to the execution time in second +1.
### The execution time is given for the duration since the previous call. So the weight should be applied to this previous call.

final_path=/opt/yunohost/$app
html_path=/usr/share/nginx/html/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
test ! -e "$html_path" || ynh_die --message="This path already contains a html folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --weight=1

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available ports..." --weight=1

### Use these lines if you have to open a port for the application
### `ynh_find_port` will find the first available port starting from the given port.
### If you're not using these lines:
###		- Remove the section "CLOSE A PORT" in the remove script

# Find an available port
port_preview=$(ynh_find_port --port=8081)
ynh_app_setting_set --app=$app --key=port_preview --value=$port_preview
port_ide=$(ynh_find_port --port=8082)
ynh_app_setting_set --app=$app --key=port_ide --value=$port_ide
port_project=$(ynh_find_port --port=8083)
ynh_app_setting_set --app=$app --key=port_project --value=$port_project
port_data=$(ynh_find_port --port=8084)
ynh_app_setting_set --app=$app --key=port_data --value=$port_data

# define the list of port in the same order than the list of services
PORT_LIST=($port_ide $port_preview $port_project $port_data)

# Optional: Expose this port publicly
# (N.B.: you only need to do this if the app actually needs to expose the port publicly.
# If you do this and the app doesn't actually need you are CREATING SECURITY HOLES IN THE SERVER !)

# Open the port
# ynh_script_progression --message="Configuring firewall..." --weight=1
# ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=1

# Install the required version of Java
ynh_install_java --java_version=$java_version --jdk_type=jre

### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
### Those deb packages will be installed as dependencies of this package.
### If you're not using this helper:
###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
###		- Remove the variable "pkg_dependencies" in _common.sh
###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script

ynh_install_app_dependencies $pkg_dependencies

# Install the required version of Mongo
ynh_install_mongo --mongo_version=$mongo_version

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path" --use_shell --groups="ssh.app"

#=================================================
# CREATE A Mongo DATABASE
#=================================================
ynh_script_progression --message="Creating the Mongo databases..." --weight=1

#db_project_name=$(ynh_sanitize_dbid --db_name="${app}-projects")
#db_demo_project_name=$(ynh_sanitize_dbid --db_name="${app}-demo-projects")
#db_data_name=$(ynh_sanitize_dbid --db_name="${app}-data")
db_user=$(ynh_sanitize_dbid --db_name="${app}")
#ynh_app_setting_set --app=$app --key=db_project_name --value=$db_project_name
#ynh_app_setting_set --app=$app --key=db_demo_project_name --value=$db_demo_project_name
#ynh_app_setting_set --app=$app --key=db_data_name --value=$db_data_name
ynh_app_setting_set --app=$app --key=db_user --value=$db_user

#We should probably enable databases to the user, but for now, we connect through admin
ynh_mongo_setup_db --db_user=$db_user --db_name=${MONGO_DB_LIST[0]}
#No need to create other databases: Mongo creates them on the fly

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1

### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
### downloaded from an upstream source, like a git repository.
### `ynh_setup_source` use the file conf/app.src

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
mkdir --parents $final_path

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path"

if [ -n "$public_key" ]
then
  ynh_script_progression --message="Enabling ssh access for dev..." --weight=1
  #enable ssh access to the files for updates
  #todo: Secure it more with https://github.com/YunoHost-Apps/ssh_chroot_dir_ynh
  mkdir --parents $final_path/.ssh
  ynh_add_config --template="authorized_keys" --destination="$final_path/.ssh/authorized_keys"
  ynh_app_setting_set --app=$app --key=public_key --value=$public_key
  chown -R $app:$app "$final_path/.ssh"
  chmod 700 "$final_path/.ssh"
  chmod 600 "$final_path/.ssh/authorized_keys"

  #=================================================
  # Create restart services file
  #=================================================

  # Enable restarting of services from ssh
  ynh_add_config --template="restart-services.sh" --destination="$final_path/restart-services.sh"

  # Enable root ownership to be able to call systemctl
  chown $app:$app "$final_path/restart-services.sh"
  chmod o-rwx,gu=rwx "$final_path/restart-services.sh"

  ynh_add_config --template="dont-code-sudoers" --destination="/etc/sudoers.d/$app-sudoers"
  chown root:root "/etc/sudoers.d/$app-sudoers"
  chmod o-rwx,gu=r "/etc/sudoers.d/$app-sudoers"

fi


#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=1

### `ynh_add_nginx_config` will use the file conf/nginx.conf

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# Create document storage
#=================================================
ynh_script_progression --message="Configuring document storage..." --weight=1
document_path=$html_path/docs
test ! -e "$document_path" || ynh_die --message="This path already contains a folder"
mkdir --parents $document_path

ynh_app_setting_set --app=$app --key=html_path --value=$html_path
ynh_app_setting_set --app=$app --key=document_path --value=$document_path

# Add the status page
ynh_add_config --template="index.html" --destination="$html_path/index.html"

chmod 750 "$html_path"
chmod -R o-rwx "$html_path"
chown -R $app:www-data "$html_path"

document_url=$(append_uri "https://${domain}${path_url}" "docs")

ynh_app_setting_set --app=$app --key=document_url --value=$document_url

#=================================================
# DONT CREATE A DATA DIRECTORY
#=================================================
#ynh_script_progression --message="Creating a data directory..." --weight=1

### Use these lines if you need to create a directory to store "persistent files" for the application.
### Usually this directory is used to store uploaded files or any file that won't be updated during
### an upgrade and that won't be deleted during app removal unless "--purge" option is used.
### If you're not using these lines:
###		- Remove the section "BACKUP THE DATA DIR" in the backup script
###		- Remove the section "RESTORE THE DATA DIRECTORY" in the restore script
###     - As well as the section "REMOVE DATA DIR" in the remove script

#datadir=/home/yunohost.app/$app
#ynh_app_setting_set --app=$app --key=datadir --value=$datadir

#mkdir -p $datadir

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
#chmod 750 "$datadir"
#chmod -R o-rwx "$datadir"
#chown -R $app:www-data "$datadir"

#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

### You can add specific configuration files.
###
### Typically, put your template conf file in ../conf/your_config_file
### The template may contain strings such as __FOO__ or __FOO_BAR__,
### which will automatically be replaced by the values of $foo and $foo_bar
###
### ynh_add_config will also keep track of the config file's checksum,
### which later during upgrade may allow to automatically backup the config file
### if it's found that the file was manually modified
###
### Check the documentation of `ynh_add_config` for more info.

ynh_add_config --template=".env" --destination="$final_path/.env"

# FIXME: this should be handled by the core in the future
# You may need to use chmod 600 instead of 400,
# for example if the app is expected to be able to modify its own config
chmod 400 "$final_path/.env"
chown $app:$app "$final_path/.env"

### For more complex cases where you want to replace stuff using regexes,
### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
### When doing so, you also need to manually call ynh_store_file_checksum
###
### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
### ynh_store_file_checksum --file="$final_path/some_config_file"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=1

### `ynh_systemd_config` is used to configure a systemd script for an app.
### It can be used for apps that use sysvinit (with adaptation) or systemd.
### Have a look at the app to be sure this app needs a systemd script.
### `ynh_systemd_config` will use the file conf/systemd.service
### If you're not using these lines:
###		- You can remove those files in conf/.
###		- Remove the section "BACKUP SYSTEMD" in the backup script
###		- Remove also the section "STOP AND REMOVE SERVICE" in the remove script
###		- As well as the section "RESTORE SYSTEMD" in the restore script
###		- And the section "SETUP SYSTEMD" in the upgrade script

# Create a dedicated systemd config for each service

service_list_length=${#SERVICES_LIST[@]}
for (( j=0; j<${service_list_length}; j++ ))
do
  service_name=${SERVICES_LIST[$j]}
  port=${PORT_LIST[$j]}
  ynh_add_systemd_config --service="${app}-${service_name}"
done


#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=1

### `ynh_use_logrotate` is used to configure a logrotate configuration for the logs of this app.
### Use this helper only if there is effectively a log file for this app.
### If you're not using this helper:
###		- Remove the section "BACKUP LOGROTATE" in the backup script
###		- Remove also the section "REMOVE LOGROTATE CONFIGURATION" in the remove script
###		- As well as the section "RESTORE THE LOGROTATE CONFIGURATION" in the restore script
###		- And the section "SETUP LOGROTATE" in the upgrade script

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

### `yunohost service add` integrates a service in YunoHost. It then gets
### displayed in the admin interface and through the others `yunohost service` commands.
### (N.B.: this line only makes sense if the app adds a service to the system!)
### If you're not using these lines:
###		- You can remove these files in conf/.
###		- Remove the section "REMOVE SERVICE INTEGRATION IN YUNOHOST" in the remove script
###		- As well as the section "INTEGRATE SERVICE IN YUNOHOST" in the restore script
###		- And the section "INTEGRATE SERVICE IN YUNOHOST" in the upgrade script

for service_name in "${SERVICES_LIST[@]}"
do
  yunohost service add "${app}-${service_name}" --description="Dont-code platform ${service_name} service" --log="/var/log/${app}/${service_name}-${app}.log"
done

### Additional options starting with 3.8:
###
### --needs_exposed_ports "$port" a list of ports that needs to be publicly exposed
###                               which will then be checked by YunoHost's diagnosis system
###                               (N.B. DO NOT USE THIS is the port is only internal!!!)
###
### --test_status "some command"  a custom command to check the status of the service
###                               (only relevant if 'systemctl status' doesn't do a good job)
###
### --test_conf "some command"    some command similar to "nginx -t" that validates the conf of the service
###
### Re-calling 'yunohost service add' during the upgrade script is the right way
### to proceed if you later realize that you need to enable some flags that
### weren't enabled on old installs (be careful it'll override the existing
### service though so you should re-provide all relevant flags when doing so)

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting systemd services..." --weight=1

### `ynh_systemd_action` is used to start a systemd service for an app.
### Only needed if you have configure a systemd service
### If you're not using these lines:
###		- Remove the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the backup script
###		- As well as the section "START SYSTEMD SERVICE" in the restore script
###		- As well as the section"STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the upgrade script
###		- And the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the change_url script

# Start a systemd service
for service_name in "${SERVICES_LIST[@]}"
do
  ynh_systemd_action --service_name="${app}-${service_name}" --action="start" --log_path="/var/log/$app/$app.log"
done

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# Everyone can access the app.
	# The "main" permission is automatically created before the install script.
	ynh_permission_update --permission="main" --add="visitors"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

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