#!/bin/bash

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

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

#=================================================
# INITIALIZE AND STORE SETTINGS
#=================================================

if [ $synapsenumber -eq "1" ]; then
    synapse_instance="synapse"
else
    synapse_instance="synapse__$synapsenumber"
fi

synapse_config_path="/etc/matrix-$synapse_instance"

# Check Synapse is installed or die early
if [ ! -d "$synapse_config_path" ]; then
    ynh_die --message="Could not find $synapse_config_path config directory. Ensure that you installed Matrix Synapse first and that you entered a correct \"synapse instance number\""
fi

server_name=$(ynh_app_setting_get --app $synapse_instance --key server_name)
domain=$(ynh_app_setting_get --app $synapse_instance --key domain)

app_service_registration_path="/etc/matrix-$synapse_instance/app-service"
log_path="/var/log/$app"
base_config_path="$install_dir/base.config.yaml"
user_config_path="/etc/$app/user.config.yaml"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing NodeJS..." --weight=4

ynh_install_nodejs --nodejs_version="$NODEJS_VERSION"

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

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

chmod -R o-rwx "$install_dir"
chown -R "$app:$app" "$install_dir"

#=================================================
# ADD CONFIGURATION FILES
#=================================================
ynh_script_progression --message="Adding configuration files..." --weight=1

# Create startup script
ynh_add_config --template="run.sh" --destination="$install_dir/run.sh"
chmod 750 "$install_dir/run.sh"

# TODO Add a way to override the config.yaml file
ynh_add_config --template="base.config.yaml" --destination="$install_dir/base.config.yaml"
chmod 400 "$install_dir/base.config.yaml"
chown "$app:$app" "$install_dir/base.config.yaml"

etc_path=$(dirname $user_config_path)
ynh_app_setting_set --app=$app --key=etc_path --value=$etc_path

mkdir -p -m 750 "$etc_path"
chown "$app:$app" "$etc_path"

any_account_of_domain="@.*:${domain//\./\\\.}"

ynh_add_config --template="user.config.yaml" --destination="$user_config_path"
chmod 600 "$user_config_path"
chown "$app:$app" "$user_config_path"

#=================================================
# INSTALL NODE DEPENDENCIES
#=================================================
ynh_script_progression --message="Building Node dependencies..." --weight=30

pushd "$install_dir/source"
    ynh_use_nodejs
    ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" npx yarn install
popd

#=================================================
# SETUP PIP (FOR YQ)
#=================================================
ynh_script_progression --message="Install yq..." --weight=1

_venv_install
"$venvpy" -m pip install yq

#=================================================
# CREATE LOG DIR
#=================================================

mkdir -p -m 700 "$log_path"
chown "$app:$app" "$log_path"

#=================================================
# REGISTER MODULE IN SYNAPSE
#=================================================
ynh_script_progression --message="Register module in Synapse" --weight=1

pushd "$install_dir/source"
    ynh_exec_warn_less ynh_exec_as "$app" env "$ynh_node_load_PATH" NODE_ENV=production \
        "$install_dir/run.sh" -r -f "$install_dir/$app.yaml"
popd

cp "$install_dir/$app.yaml" "$app_service_registration_path/$app.yaml"
"/opt/yunohost/matrix-$synapse_instance/update_synapse_for_appservice.sh" \
    || ynh_die --message="Synapse can't restart with the appservice configuration"

ynh_store_file_checksum --file="$app_service_registration_path/$app.yaml"

#=================================================
# SYSTEM CONFIGURATION
#=================================================
ynh_script_progression --message="Adding system configurations related to $app..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config
yunohost service add "$app" --description="$app daemon for bridging Discord and Matrix messages"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting $app's systemd service..." --weight=1

# Start a systemd service
ynh_systemd_action --service_name="$app" --action="start"

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

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