#!/bin/bash

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

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

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

ynh_clean_setup () {
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

gitlab_url=$YNH_APP_ARG_GITLAB_URL
token=$YNH_APP_ARG_TOKEN
docker_image=$YNH_APP_ARG_DOCKER_IMAGE

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

config_path=/etc/$app
test ! -e "$config_path" || ynh_die "This path already contains a folder"

# By default, the runner will use docker to run your builds. PR are welcomes to implement more executors
executor="docker"

# Adding a comma at the end
if [ ${gitlab_url: -1} != "," ]; then
	gitlab_url=${gitlab_url},
fi

# Adding a comma at the end
if [ ${token: -1} != "," ]; then
	token=${token},
fi

# Adding a comma at the end
if [ ${docker_image: -1} != "," ]; then
	docker_image=${docker_image},
fi

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

ynh_app_setting_set --app=$app --key=gitlab_url --value=$gitlab_url
ynh_app_setting_set --app=$app --key=token --value=$token
ynh_app_setting_set --app=$app --key=executor --value=$executor
ynh_app_setting_set --app=$app --key=docker_image --value=$docker_image
ynh_app_setting_set --app=$app --key=config_path --value=$config_path

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..."

ynh_install_extra_repo --repo="https://download.docker.com/linux/debian $(lsb_release -cs) stable" --key="https://download.docker.com/linux/debian/gpg" --name="${app}-docker"
ynh_install_app_dependencies $pkg_dependencies

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

tempdir="$(mktemp -d)"
ynh_setup_source --dest_dir=$tempdir --source_id=$YNH_ARCH
dpkg -i $tempdir/gitlab-runner.deb
ynh_secure_remove --file="$tempdir"

#=================================================
# SPECIFIC SETUP
#=================================================
# SETUP GITLAB RUNNER
#=================================================
ynh_script_progression --message="Configuring Gitlab Runner..."

# Can be registered several time, to do this give a list of gitlab_url, token and docker_image separated by a comma.
split_char=","

nb_to_register=$(echo "${gitlab_url}" | awk -F"${split_char}" '{print NF-1}')

for i in $(seq $nb_to_register)
do
	url=$(echo $gitlab_url | cut -d$split_char -f$i)
	tok=$(echo $token | cut -d$split_char -f$i)
	docker_img=$(echo $docker_image | cut -d$split_char -f$i)

	# Register the runner
	ynh_exec_warn_less $app register \
		--non-interactive \
		--url "$url" \
		--registration-token "$tok" \
		--executor "$executor" \
		--docker-image "$docker_img" \
		--description "Yunohost runner" \
		--tag-list "$executor,$YNH_ARCH" \
		--run-untagged \
		--locked="false"
done

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$config_path/config.toml"

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app

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

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