#!/hint/bash -euE
# Copyright (C) 2023  Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later

load_module "$(dirname -- "${BASH_SOURCE[0]}")/base-sshd.sh"
load_module "$(dirname -- "${BASH_SOURCE[0]}")/base-nginx.sh"

packages+=(gitea)

post_install+=(20:gitea:post_install)
gitea:post_install() {
	local arg_mountpoint=$1

	cat >"$arg_mountpoint/etc/gitea/app.ini" <<-EOF
		; Base setup ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		[server]
		PROTOCOL = http+unix
		HTTP_ADDR = /run/gitea/http.sock
		DOMAIN = git.mothstuff.lol
		ROOT_URL = https://git.mothstuff.lol/

		; Database ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		[database]
		; DB_TYPE = postgres
		; HOST = /var/run/postgresql
		; NAME = gitea
		; USER = root
		; SCHEMA =
		DB_TYPE = sqlite3

		; Auth/Accounts ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		[service]
		DISABLE_REGISTRATION = true

		[openid]
		ENABLE_OPENID_SIGNIN = false
		ENABLE_OPENID_SIGNUP = false

		[oauth2_client]
		ENABLE_AUTO_REGISTRATION = true
		USERNAME = email
		UPDATE_AVATAR = true

		; Other ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		[security]
		INSTALL_LOCK = true

		[log]
		MODE = console
		LEVEL = Info

		[cron.update_checker]
		ENABLED = false

		; Don't be an OAuth2 identity provider
		[oauth2]
		ENABLE = false
	EOF

	systemctl --root="$arg_mountpoint" enable gitea.service

	install -Dm644 /dev/stdin "$arg_mountpoint/etc/ssh/sshd_config.d/91-gitea.conf" <<-EOF
		AllowGroups gitea
	EOF

	install -Dm644 /dev/stdin "$arg_mountpoint/etc/nginx/sites/gitea.conf" <<-'EOF'
		# -*- mode: nginx; nginx-indent-level: 4; intent-tabs-mode: nil -*-
		server {
		    server_name git.mothstuff.lol;
		    include /etc/nginx/snippets/listen.conf;

		    location / {
		        client_max_body_size 512M;
		        proxy_pass http://unix:/run/gitea/http.sock;
		        proxy_set_header Host $host;
		        proxy_set_header X-Real-IP $remote_addr;
		        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		        proxy_set_header X-Forwarded-Proto $scheme;

		    }
		    location /user/login {
		        return 302 /user/oauth2/Infomaniak;
		    }
		}
	EOF

	########################################################################

	install -Dm755 /dev/stdin "$arg_mountpoint/etc/gitea/post-install" <<-'EOF'
#!/usr/bin/env bash
args=(
	--name=Infomaniak
	--provider=openidConnect
	--key="$(cat /etc/umorpha-secrets/gitea-infomaniak-clientid.txt)"
	--secret="$(cat /etc/umorpha-secrets/gitea-infomaniak-clientsecret.txt)"
	--scopes=email
	--skip-local-2fa=true
	--auto-discover-url=https://login.infomaniak.com/.well-known/openid-configuration
	--icon-url=https://www.infomaniak.com/favicon.ico
)
id=$(gitea admin auth list | awk '/Infomaniak/{print $1}')
if [[ -z "$id" ]]; then
	gitea admin auth add-oauth "${args[@]}"
else
	gitea admin auth update-oauth --id="$id" "${args[@]}"
fi
EOF
	
	install -Dm644 /dev/stdin "$arg_mountpoint/etc/systemd/system/gitea-init.service" <<-'EOF'
		[Unit]
		Description=Initialize Gitea configuration
		Requires=gitea.service
		After=gitea.service
		ConditionPathExists=/etc/umorpha-secrets/gitea-infomaniak-clientid.txt
		ConditionPathExists=/etc/umorpha-secrets/gitea-infomaniak-clientsecret.txt

		[Service]
		Type=oneshot
		User=gitea
		Group=gitea
		ExecStart=/etc/gitea/post-install
	EOF

	mkdir -p -- "$arg_mountpoint/etc/systemd/system/gitea.service.wants"
	ln -s "../gitea-init.service" "$arg_mountpoint/etc/systemd/system/gitea.service.wants"
}