#!/bin/bash

APP_NAME="mattermost"
APP_DIR="/var/excloud/apps"
SCRIPT_DIR="/var/excloud/scripts"
APP_UPSTREAM_PORT="${EXC_APP_UPSTREAM_PORT:-8065}"
CALLS_PORT="${EXC_APP_CALLS_PORT:-8443}"

mkdir -p "${APP_DIR}"
mkdir -p "${SCRIPT_DIR}"

DOMAIN="${1}"

if [ -z "${DOMAIN}" ]; then
  echo "Error: URL argument is required. Example:" >&2
  echo "install.sh sub.example.com" >&2
  exit 1
fi

MATTERMOST_DIR="${APP_DIR}/${APP_NAME}"
COMPOSE_FILE="${MATTERMOST_DIR}/docker-compose.yml"
ENV_FILE="${MATTERMOST_DIR}/.env"

mkdir -p "${MATTERMOST_DIR}"
source /var/excloud/scripts/caddy-setup.sh
setup_initializing_page "$DOMAIN" "$APP_NAME" "$MATTERMOST_DIR"

if [ ! -f "${ENV_FILE}" ]; then
  POSTGRES_PASSWORD="$(od -An -N32 -tx1 /dev/urandom | tr -d ' \n')"
  (umask 077 && printf 'POSTGRES_PASSWORD=%s\n' "${POSTGRES_PASSWORD}" > "${ENV_FILE}")
fi

cat > "${COMPOSE_FILE}" <<EOF
services:
  postgres:
    image: postgres:18-alpine
    restart: always
    security_opt:
      - no-new-privileges:true
    environment:
      POSTGRES_DB: mattermost
      POSTGRES_USER: mattermost
      POSTGRES_PASSWORD: \${POSTGRES_PASSWORD}
      TZ: UTC
    volumes:
      - mattermost-postgres-data:/var/lib/postgresql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U mattermost -d mattermost"]
      interval: 10s
      timeout: 5s
      retries: 10

  mattermost:
    image: mattermost/mattermost-team-edition:11.7.0
    restart: always
    depends_on:
      postgres:
        condition: service_healthy
    security_opt:
      - no-new-privileges:true
    ports:
      - "127.0.0.1:${APP_UPSTREAM_PORT}:8065"
      - "${CALLS_PORT}:8443/tcp"
      - "${CALLS_PORT}:8443/udp"
    environment:
      TZ: UTC
      MM_SQLSETTINGS_DRIVERNAME: postgres
      MM_SQLSETTINGS_DATASOURCE: postgres://mattermost:\${POSTGRES_PASSWORD}@postgres:5432/mattermost?sslmode=disable&connect_timeout=10
      MM_BLEVESETTINGS_INDEXDIR: /mattermost/bleve-indexes
      MM_SERVICESETTINGS_SITEURL: https://${DOMAIN}
    volumes:
      - mattermost-config:/mattermost/config
      - mattermost-data:/mattermost/data
      - mattermost-logs:/mattermost/logs
      - mattermost-plugins:/mattermost/plugins
      - mattermost-client-plugins:/mattermost/client/plugins
      - mattermost-bleve-indexes:/mattermost/bleve-indexes

volumes:
  mattermost-postgres-data:
  mattermost-config:
  mattermost-data:
  mattermost-logs:
  mattermost-plugins:
  mattermost-client-plugins:
  mattermost-bleve-indexes:
EOF

bash "${SCRIPT_DIR}/domain.sh" "${DOMAIN}"