#!/usr/bin/env bash

# Ansible provisioning wrapper script that
# assumes the following parameters set
# as environment variables
#
# - github_username
# - server_type
# - instance_type
# - region
# - aws_account
# - keypair
# - ami
# - root_ebs_size
# - security_group
# - dns_zone
# - dns_name
# - environment
# - name_tag
set -x
env
export PYTHONUNBUFFERED=1
export BOTO_CONFIG=/var/lib/jenkins/${aws_account}.boto

if [[ -z $BUILD_USER ]]; then
    BUILD_USER=jenkins
fi

if [[ -z $BUILD_USER_ID ]]; then
    BUILD_USER_ID=edx-sandbox
fi


if [[ -z $WORKSPACE ]]; then
    dir=$(dirname $0)
    source "$dir/ascii-convert.sh"
else
    source "$WORKSPACE/configuration/util/jenkins/ascii-convert.sh"
fi

if [[ -z $static_url_base ]]; then
  static_url_base="/static"
fi

if [[ -z $github_username  ]]; then
  github_username=$BUILD_USER_ID
fi

if [[ ! -f $BOTO_CONFIG ]]; then
  echo "AWS credentials not found for $aws_account"
  exit 1
fi

extra_vars_file="/var/tmp/extra-vars-$$.yml"
extra_var_arg="-e@${extra_vars_file}"

if [[ $edx_internal == "true" ]]; then
    # if this is a an edx server include
    # the secret var file
    extra_var_arg="-e@${WORKSPACE}/configuration-secure/ansible/vars/developer-sandbox.yml -e@${extra_vars_file}"
fi

if [[ -z $region ]]; then
  region="us-east-1"
fi

if [[ -z $zone ]]; then
  zone="us-east-1c"
fi

if [[ -z $vpc_subnet_id ]]; then
  vpc_subnet_id="subnet-cd867aba"
fi

if [[ -z $elb ]]; then
  elb="false"
fi

if [[ -z $dns_name ]]; then
  dns_name=${github_username}
fi

if [[ -z $name_tag ]]; then
  name_tag=${github_username}-${environment}
fi

if [[ -z $ami ]]; then
  if [[ $server_type == "full_edx_installation" ]]; then
    ami="ami-867d3bee"
  elif [[ $server_type == "ubuntu_12.04" || $server_type == "full_edx_installation_from_scratch" ]]; then
    ami="ami-a217b2ca"
  elif [[ $server_type == "ubuntu_14.04(experimental)" ]]; then
    ami="ami-10389d78"
  fi
fi

if [[ -z $instance_type ]]; then
  instance_type="t2.medium"
fi

if [[ -z $enable_monitoring ]]; then
  enable_monitoring="false"
fi

# Lowercase the dns name to deal with an ansible bug
dns_name="${dns_name,,}"

deploy_host="${dns_name}.${dns_zone}"
ssh-keygen -f "/var/lib/jenkins/.ssh/known_hosts" -R "$deploy_host"

cd playbooks/edx-east

cat << EOF > $extra_vars_file
---
ansible_ssh_private_key_file: /var/lib/jenkins/${keypair}.pem
edx_platform_version: $edxapp_version
forum_version: $forum_version
notifier_version: $notifier_version
xqueue_version: $xqueue_version
xserver_version: $xserver_version
ora_version: $ora_version
ease_version: $ease_version
certs_version: $certs_version
discern_version: $discern_version
EDXAPP_STATIC_URL_BASE: $static_url_base
EDXAPP_LMS_NGINX_PORT: 80
EDXAPP_LMS_PREVIEW_NGINX_PORT: 80
EDX_ANSIBLE_DUMP_VARS: true
migrate_db: "yes"
openid_workaround: True
rabbitmq_ip: "127.0.0.1"
rabbitmq_refresh: True
COMMON_HOSTNAME: $dns_name
COMMON_DEPLOYMENT: edx
COMMON_ENVIRONMENT: sandbox
# User provided extra vars
$extra_vars
EOF

if [[ $basic_auth == "true" ]]; then
    # vars specific to provisioning added to $extra-vars
    cat << EOF_AUTH >> $extra_vars_file
COMMON_ENABLE_BASIC_AUTH: True
COMMON_HTPASSWD_USER: $auth_user
COMMON_HTPASSWD_PASS: $auth_pass
XQUEUE_BASIC_AUTH_USER: $auth_user
XQUEUE_BASIC_AUTH_PASSWORD: $auth_pass
EOF_AUTH

else
    cat << EOF_AUTH >> $extra_vars_file
COMMON_ENABLE_BASIC_AUTH: False
EOF_AUTH

fi

if [[ $edx_internal == "true" ]]; then
    # if this isn't a public server add the github
    # user and set edx_internal to True so that
    # xserver is installed
    cat << EOF >> $extra_vars_file
EDXAPP_PREVIEW_LMS_BASE: preview.${deploy_host}
EDXAPP_LMS_BASE: ${deploy_host}
EDXAPP_CMS_BASE: studio.${deploy_host}
EDXAPP_SITE_NAME: ${deploy_host}
CERTS_DOWNLOAD_URL: "http://${deploy_host}:18090"
CERTS_VERIFY_URL: "http://${deploy_host}:18090"
edx_internal: True
COMMON_USER_INFO:
  - name: ${github_username}
    github: true
    type: admin
USER_CMD_PROMPT: '[$name_tag] '
COMMON_ENABLE_NEWRELIC_APP: $enable_monitoring
COMMON_ENABLE_DATADOG: $enable_monitoring
FORUM_NEW_RELIC_ENABLE: $enable_monitoring
EDXAPP_NEWRELIC_LMS_APPNAME: sandbox-${dns_name}-edxapp-lms
EDXAPP_NEWRELIC_CMS_APPNAME: sandbox-${dns_name}-edxapp-cms
XQUEUE_NEWRELIC_APPNAME: sandbox-${dns_name}-xqueue
FORUM_NEW_RELIC_APP_NAME: sandbox-${dns_name}-forums
SANDBOX_USERNAME: $github_username
EOF
fi


if [[ $recreate == "true" ]]; then
    # vars specific to provisioning added to $extra-vars
    cat << EOF >> $extra_vars_file
dns_name: $dns_name
keypair: $keypair
instance_type: $instance_type
security_group: $security_group
ami: $ami
region: $region
zone: $zone
instance_tags:
    environment: $environment
    github_username: $github_username
    Name: $name_tag
    source: jenkins
    owner: $BUILD_USER
    datadog: monitored
root_ebs_size: $root_ebs_size
name_tag: $name_tag
dns_zone: $dns_zone
rabbitmq_refresh: True
elb: $elb
EOF



    # run the tasks to launch an ec2 instance from AMI
    cat $extra_vars_file
    ansible-playbook edx_provision.yml -i inventory.ini $extra_var_arg --user ubuntu

    if [[ $server_type == "full_edx_installation" ]]; then
        # additional tasks that need to be run if the
        # entire edx stack is brought up from an AMI
        ansible-playbook rabbitmq.yml -i "${deploy_host}," $extra_var_arg --user ubuntu
        ansible-playbook restart_supervisor.yml -i "${deploy_host}," $extra_var_arg --user ubuntu
    fi
fi

declare -A deploy
roles="edxapp forum notifier xqueue xserver ora discern certs demo testcourses"
for role in $roles; do
    deploy[$role]=${!role}
done

# If reconfigure was selected or if starting from an ubuntu 12.04 AMI
# run non-deploy tasks for all roles
if [[ $reconfigure == "true" || $server_type == "full_edx_installation_from_scratch" ]]; then
    cat $extra_vars_file
    ansible-playbook edx_continuous_integration.yml -i "${deploy_host}," $extra_var_arg --user ubuntu
fi

if [[ $reconfigure != "true" && $server_type == "full_edx_installation" ]]; then
    # Run deploy tasks for the roles selected
    for i in $roles; do
        if [[ ${deploy[$i]} == "true" ]]; then
            cat $extra_vars_file
            ansible-playbook ${i}.yml -i "${deploy_host}," $extra_var_arg --user ubuntu --tags deploy
        fi
    done
fi

# deploy the edx_ansible role
ansible-playbook edx_ansible.yml -i "${deploy_host}," $extra_var_arg --user ubuntu

# set the hostname
ansible-playbook set_hostname.yml -i "${deploy_host}," -e hostname_fqdn=${deploy_host} --user ubuntu

rm -f "$extra_vars_file"
