#!/usr/bin/env bash
#
# Usage:
#   release <name>
#   jobs <job name>...
#   packages <package name>...
#   src <src name>...
#
# This currently represents *binary* jobs by default.
# TODO: Add the concept of *script* jobs with the associated adjustments.

fail() { echo $* >&2 ; exit 1 ; }

createPackage() {
  local _package=$1
  mkdir -p {packages,src,blobs}/${_package}/
  touch {packages,src,blobs}/${_package}/.gitkeep

  cat > packages/${_package}/README.md <<EOF
# ${_package} BOSH package

## packaging

The package script is called by BOSH during the compilation phase on a 
compilation VM after compiling any dependencies listed in the spec file and
providing them to this script located within \`/var/vcap/packages/...\`.

## prepare

The package's prepare script is used to download necessary files and prepare the 
blobs and sources which this BOSH job depends on. This also acts as 
documentation as to the original source of the blobs used for this package. 
This script will be called from the release directory's 'prepare blobs' script.

## spec

The spec file is used to declare the package name, array of dependency package
names as well as a list of the blob files required by the package script.

EOF

  cat > packages/${_package}/packaging <<EOF
#!/usr/bin/env bash
set -e

package="${_package}"
version="1.0.0"
file="\${package}-\${version}.tar.gz"

tar zxvf \${package}/\${file}

cd \${file//.tar*}

./configure --prefix=\${BOSH_INSTALL_TARGET}

make

make install
EOF

  cat > packages/${_package}/prepare <<EOF
#!/usr/bin/env bash

package="${_package}"
version="1.0.0"
file="\${package}-\${version}.tar.gz"
url="http://some...download...url...prefix.../\${file}"


if [[ ! -s "\${package}/\${file}" ]]
then
  mkdir -p \${package}
  curl -s "\${url}" -o "\${package}/\${file}"
fi
EOF

chmod +x packages/${_package}/{packaging,prepare}

  cat > packages/${_package}/spec <<EOF
---
name: ${_package}
dependencies: []
files:
  - ${_package}/${_package}-*
EOF

}

createJob() {
  local jobName=${1}
  if ! [[ -d jobs ]]
  then fail "No ./jobs directory found, if you intended this to be a release dir then create it and try again."
  fi
  mkdir -p jobs/${jobName}

  jobDirs=( jobs/${jobName}/templates/{bin,config,shell} )
  mkdir -p ${jobDirs[@]}
  touch jobs/${jobName}/templates/config/.gitkeep

  cat > jobs/${jobName}/README.md <<EOF
# ${jobName} BOSH Service Job

[Official BOSH Release Documentation](http://bosh.io/docs/create-release.html)

What follows is an explanation about the pieces contained within this BOSH job
and what the development workflow is.

## Workflow

Dynamic data from BOSH properties should only be injected to \`templates/config/\` 
files and the environment definition file located at \`templates/shell/env.rb\`.

Otherwise you edit the \`templates/shell/functions\` if you need to make any behavior 
tweaks, see the description of this below.

## templates/bin/control

The script should never be modified, it's sole purpose
is to be called by the monit daemon to *start*, *stop* and *monitor* the job's
binary executable.

## templates/bin/${jobName}

By default this file is setup to exec an binary/script stored within the package
path of the same name as the job. If you do not have a package with a binary 
that you are running directly which represents the job itself then delete the 
\`user exec\` line within the while loop and replace it with code to do what the 
job needs to do. For a simple example, to run a command every minute you would 
place that command followed by a second command 'sleep 60' within the while loop.

If the binary/script for the job you are running requires special handling 
in order to gracefully shut down place this logic within the \`graceful_stop()\`
function in the \`templates/shell/functions\` file.

## templates/shell/env.rb

This script file is where you will set up all of the environment and prepare 
directory hierarchies, etc... This file is where you assign variables from 
BOSH manifest properties.

## templates/config/

This directory is optional, if your binary requires any configuration files you
should create them in here with a \`.erb\` extension. This allows you to use
BOSH manifest properties within the configuration file templates.

## templates/shell/functions

This script contains the start and stop functionality of the job's binary 
executable. The \`shell/env\` will be loaded before this functions file is 
loaded. Any and all customization and functionality of the starting / stopping
of the BOSH job should be done in this file.

## monit

This is a monit configuration file which specifies how to start, stop and monitor
(pidfile to watch) the job's binary executable.

## spec

This is the BOSH service job specification file, it is used to declare:

* The name of the job.
* The listing of package names required by the job.
* The mapping of files to their final destination within the runtime job path.
* A listing of :\`properties:\`, where each property specifies it's 
  \`description:\` and \`default:\` value if any.

EOF

  cat > jobs/${jobName}/templates/bin/control <<EOF
#!/usr/bin/env bash

source "\$(dirname \$(dirname \${0}))/shell/env"

trap graceful_stop SIGTERM # Handle term signal sent by control script stop action.

echo \$\$ > \${pidFile} # Write the shell script's PID to the pidFile

set_pid
if (( \${pid} == 0 )) ; then echo \$\$ > \${pidFile} ; fi

if [[ -z \${1:-} ]] ; then fail "\$0 start|stop" ; fi ; action=\$1 ; shift 
case \${action} in
  (start)
      user exec \${pkgPath}/bin/${jobName}
    ;;
  (stop)  
    send_signal TERM
    ;;
  (*)
    fail "Unknown action ${action}"
    ;;
esac
;;
EOF

  cat > jobs/${jobName}/templates/shell/env.erb <<EOF
#!/usr/bin/env bash

set -e # exit immediately if a simple command exits with a non-zero status
set -u # report the usage of uninitialized variables

vmName="<%= name %>" # BOSH VM name
vmIndex="<%= index %>" # Index within cluster
deploymentName="<%= spec.deployment %>"
domainName="<%= spec.dns_domain_name %>"
vmFullName="\${vmName}/\${vmIndex}" # full job name
nodeName="\${deploymentName}-\${vmName}-\${vmIndex}"

jobName="${jobName}"

logPath="/var/vcap/sys/log/\${jobName}"
mkdir -p "\${logPath}"
exec &>> "\${logPath}/\${jobName}.log" # STD{OUT,ERR}
echo -e "\$(date +'%Y-%m-%dT%H:%M:%S') \$(whoami) > \$0 \$*"

source /var/vcap/jobs/\${jobName}/shell/functions

<% if p('${jobName//-/_}.debug') == "true" %>turn_debugging_on<% end %>

jobPath="/var/vcap/jobs/\${jobName}"
pkgPath="/var/vcap/packages/\${jobName}"
runPath="/var/vcap/sys/run/\${jobName}"
tmpPath="/var/vcap/sys/tmp/\${jobName}"
storePath="/var/vcap/store/\${jobName}"

userName="root"
groupName="root"
LANG="en_US.UTF-8"
HOME="\${HOME:-"/home/\${userName}"}"
pidFile="\${runPath}/\${jobName}.pid"
LD_LIBRARY_PATH="\${LD_LIBRARY_PATH:-}"
export LANG HOME LD_LIBRARY_PATH

add_packages_to_path

configure_job_paths

set_pid

EOF

  cat > jobs/${jobName}/templates/shell/functions <<EOF
#!/usr/bin/env bash

fail() { 
  echo "\$*" >&2 
  exit 1 
}

user() {
  local _action=\$1 ; shift
  case \${_action} in
    (exec)  exec chpst -u "\${userName}:\${groupName}" "\$@" ;;
    (run)   chpst -u "\${userName}:\${groupName}" "\$@"      ;;
    (chown) chown -R "\${userName}:\${groupName}" "\$@"      ;;
  esac
}

set_pid() {
  pid=0
  if [[ -s \${pidFile} ]]
  then pid=\$(head -1 \${pidFile})
  fi
}

send_signal() { 
  if (( \${pid:-0} > 0 ))
  then kill -\${1} \${pid}
  fi
}


turn_debugging_on() {
  echo "Turning Debugging On"
  export PS4='+(\${BASH_SOURCE}:\${LINENO})> \${FUNCNAME[0]:+\${FUNCNAME[0]}(): }'
  export DEBUG="true" 
  set -x
  set -v
}

add_packages_to_path() { # Add all packages' /bin & /sbin into \$PATH
  for _path in \$(ls -d /var/vcap/packages/*/*bin)
  do PATH="\${_path}:\${PATH}"
  done ; export PATH
}

configure_job_paths() {
  paths=(
    "\${jobPath}"
    "\${runPath}"
    "\${logPath}"
    "\${tmpPath}"
    "\${storePath}"
  )
  if (( \${UID} == 0 ))
  then
    for _path in "\${paths[@]}"
    do
      [[ -d \${_path} ]] || mkdir -p "\${_path}"
      chown -R \${userName}:\${groupName} "\${_path}"
      chmod 0775 "\${_path}"
    done
  fi
}

graceful_stop() {
  rm -f \${pidFile}
  exit 0 # Normal exit, return code 0
}

EOF

  cat > jobs/${jobName}/monit <<EOF
check process ${jobName}
  with pidfile /var/vcap/sys/run/${jobName}/${jobName}.pid
  start program "/var/vcap/jobs/${jobName}/bin/control start" with timeout 30 seconds
  stop program "/var/vcap/jobs/${jobName}/bin/control stop"
  group vcap
EOF

  cat > jobs/${jobName}/spec <<EOF
---
name: ${jobName}
packages:
- ${jobName}
templates:
  bin/control: bin/control
  bin/${jobName}: bin/${jobName}
  shell/env.erb: shell/env
  shell/functions: shell/functions
properties:
  ${jobName//-/_}.debug:
    description: "Enable debug output, can be 'true' or 'false' (default)."
    default: "false"
EOF

  chmod +x jobs/${jobName}/templates/bin/*

  echo "job ${jobName} created"
}

createRelease() {
  local releaseName=$1

  mkdir -p ${releaseName}-boshrelease/
  cd ${releaseName}-boshrelease

  _dirs=(templates/infrastructure config packages src blobs jobs manifests stemcells docs)
  for _dir in ${_dirs[@]}
  do mkdir -p ${_dir} ; touch ${_dir}/.gitkeep
  done

  cat > docs/${releaseName}.md <<EOF
# ${releaseName} Project Specific Notes 
EOF

  cat > docs/notes.md <<EOF
# BOSH Release Notes 

## BOSH Lite

In order to get your bosh-lite up and running, first install Vagrant and Virtualbox
and then do:

\`\`\`sh
git clone git://github.com/cloudfoundry/bosh-lite
cd bosh-lite
vagrant up
./bin/add-route
\`\`\`

If you wish to destroy BOSH Lite:

\`\`\`sh
vagrant destroy --force
\`\`\`

## Debugging on a VM

For convenience when you ssh to a VM run the following line in order to add all 
of the package binaries to your current path 

\`\`\`sh
for _path in \$(ls -d /var/vcap/packages/*/*bin) ; do PATH="\${_path}:\${PATH}" ; done ; export PATH
\`\`\`
(eg. copy and paste it into the terminal window)

In order to examine the status of your BOSH services you can run:
\`\`\`sh
monit summary
\`\`\`

If you want to restart a service process, say consul, you would do it as follows:
\`\`\`sh
monit restart consul
\`\`\`

Then you can watch the status as it restarts with the following command:
\`\`\`sh
watch -n 2 monit summary
\`\`\`

Which will run the \`monit summary\` command every 2 seconds with it's output as
the only thing on the screen. Press \`^C\` (control+C) in order to exit when you 
are done.

To inspect the pacages that BOSH has placed on the box:

\`\`\`sh
ls /var/vcap/packages
\`\`\`

To inspect the jobs that BOSH has placed on the box:
\`\`\`sh
ls /var/vcap/jobs
\`\`\`

Logs for BOSH jobs *should* all be located within:
\`\`\`sh
ls /var/vcap/sys/log/*/*.log
\`\`\`


Any persistant data storage for a job will be located within:
\`\`\`sh
ls /var/vcap/store/*/
\`\`\`

EOF

  cat > ${releaseName}-dev <<EOF
#!/usr/bin/env bash

set -e -u

fail() { echo -e "\$*" ; exit 1 ; }

bosh_cli_check() {
  if ! command -v bosh &>/dev/null
  then fail "'bosh' command was not found in your path, please 'gem install bosh_cli' and try again."
  fi
}

bosh_target_check() {
  boshTarget=\$(bosh target 2>&1)
  case "\${boshTarget}" in
    (Current\ target\ is*)
      echo \${boshTarget}
      ;;
    (*)
      fail "A bosh director is not targeted, please target a director and login then try again."
      ;;
  esac
}

latest_uploaded_stemcell() {
  bosh stemcells | awk "/bosh/&&/\${stemcellOS}/" | awk -F'|' '{ print \$2, \$3 }' |
    sort -nr -k2 | head -n1 | awk '{ print \$1 }'
}

usage() { 
  echo "
Usage: \$0 <prepare|blobs|manifest|release|destroy> [options]
Where [options] for the 'prepare', 'manifest' and 'stemcell' actions are:
  'warden' or 'aws-ec2'
"
}

requireCommands() {
  for cmd in \${@}
  do
    if ! command -v \${cmd} &>/dev/null
    then
      echo "\${cmd} must be installed and available in the PATH in order to run \$0"
      exit 1
    fi
  done
}

select_infrastructure() {
  infrastructure=\${1:-}
  if ! [[ -n \${infrastructure:-} ]]
  then
    usage
    fail 
  fi 
}

prepare_blobs() {
  [[ -d \${releasePath}/blobs ]] || mkdir \${releasePath}/blobs
  echo "Preparing all packages..."
  for script in \${releasePath}/packages/*/prepare
  do
    if [[ -s \${script} ]]
    then 
      echo \${script}
      ( cd \${releasePath}/blobs ; \${SHELL} \${script} )
    fi
  done
}

prepare_stemcell() {
  select_infrastructure \$*

  stemcellOS=\${stemcellOS:-"centos"}
  directorCPI=\$(bosh status | awk '/CPI/{print \$2}')
  directorUUID=\$(awk -F: '/target_uuid/{print \$2}' ~/.bosh_config | tr -d ' ')
  directorName=\$(awk -F: '/target_name/{print \$2}' ~/.bosh_config)
  deploymentName="\${releaseName}-\${infrastructure}"


  [[ -d \${tmpPath} ]] || mkdir -p \${tmpPath}

  case \${infrastructure} in
    (aws-ec2)
      if [[ \${directorCPI} != aws ]]
      then fail "No AWS BOSH Director targeted. Please use 'bosh target' first."
      fi
      hypervisor="xen"
      case \${stemcellOS} in
        (ubuntu) 
          stemcellURL="http://bosh.io/stemcells/bosh-aws-xen-light-ubuntu-trusty-go_agent" 
          ;;
        (centos) 
          stemcellURL="http://bosh.io/stemcells/bosh-aws-xen-light-centos-7-go_agent" 
          ;;
        (*) 
          fail "Unknown Stemcell OS '\${stemcellOS}'" 
          ;;
      esac
      ;;
    (warden) 
      if ! [[ "\${directorName}" =~ "Bosh Lite Director" ]]
      then fail "No BOSH Lite  bosh-lite with warden CPI.\nPlease use 'bosh target' first."
      fi
      hypervisor="warden"
      case \${stemcellOS} in
        (ubuntu)
          stemcellURL="https://bosh.io/d/stemcells/bosh-warden-boshlite-ubuntu-trusty-go_agent" 
          ;;
        (centos) 
          stemcellURL="https://bosh.io/d/stemcells/bosh-warden-boshlite-centos-go_agent" 
          ;;
        (*) 
          fail "Unknown Stemcell OS '\${stemcellOS}'" 
          ;;
      esac
      ;;
    (*)
      usage 
      fail 
      ;;
  esac
  shift

  stemcell=\${stemcell:-\$(latest_uploaded_stemcell)}
  if [[ -z \${stemcell} ]]
  then
    stemcellFile="\${stemcellsPath}/\$(basename \${stemcellURL}).tar.gz"
    if [[ -s \${stemcellFile} ]]
    then 
      echo -e "\nUploading local stemcell \${stemcellFile}..."
      bosh upload stemcell \${stemcellFile}
    else
      echo -e "\nUploading latest \${hypervisor}/\${stemcellOS} stemcell..."
      bosh upload stemcell \${stemcellURL}
    fi
    stemcell=\$(latest_uploaded_stemcell)
  fi
}

prepare_dev_release() {
  echo "bosh create release --with-tarball --force"
  bosh create release --with-tarball --force
  echo "bosh -n upload release"
  bosh -n upload release
}

prepare_manifest() {
  select_infrastructure \$*
  prepare_stemcell \$*
  releaseName=\$(basename \$PWD | sed -e 's/-boshrelease//')
  directorCPI=\$(bosh status | awk '/CPI/{print \$2}')
  directorUUID=\$(awk -F: '/target_uuid/{print \$2}' ~/.bosh_config | tr -d ' ')
  directorName=\$(awk -F: '/target_name/{print \$2}' ~/.bosh_config)
  deploymentName="\${releaseName}-\${infrastructure}"

  requireCommands spiff bosh
  echo "Preparing to build the manifest... "

  sed \\
    -e "s/DIRECTOR-UUID/\${directorUUID}/g" \\
    -e "s/NAME/\${releaseName}/g" \\
    -e "s/STEMCELL/\${stemcell}/g" \\
    -e "s/ENVIRONMENT/\${releaseName}-\${ENVIRONMENT:-"dev"}/g" \\
    "\${templatesPath}/stub.yml" > "\${tmpPath}/targeted-director-stub.yml"

  echo "Merging templates using the spiff..."

  spiff merge \\
    "\${templatesPath}/deployment.yml" \\
    "\${templatesPath}/jobs.yml" \\
    "\${templatesPath}/infrastructure/\${infrastructure}.yml" \\
    "\${tmpPath}/targeted-director-stub.yml" \\
    \$* > "\${manifestsPath}/\${deploymentName}-manifest.yml"

  rm "\${tmpPath}/targeted-director-stub.yml"

  echo bosh deployment "\${manifestsPath}/\${deploymentName}-manifest.yml"
  bosh deployment "\${manifestsPath}/\${deploymentName}-manifest.yml"

  echo "bosh status"
  bosh status
}

if [[ \${DEBUG:-"false"} == "true" ]]
then # Enable xtrace with context if debug is true.
  export PS4='+(\${BASH_SOURCE}:\${LINENO})> \${FUNCNAME[0]:+\${FUNCNAME[0]}(): }'
  set -x
fi

releasePath=\$(cd \$(dirname \$0) ; echo \$PWD)
tmpPath=\${releasePath}/tmp
manifestsPath=\${releasePath}/manifests
stemcellsPath=\${releasePath}/stemcells
releaseName=\$(awk -F: '/final_name/{print \$2}' config/final.yml | tr -d ' ') 
templatesPath="\${releasePath}/templates"

if (( \$# > 0 ))
then
  action=\$1
  shift
else
  usage
  fail
fi

bosh_target_check
bosh_cli_check

declare -a args
if (( \${#@} ))
then args=(\$(echo "\${@}"))
fi
case \${action} in
  (prepare)
    if (( \${#args[@]} == 0 ))
    then
      usage
      fail
    fi
    prepare_blobs
    prepare_dev_release
    prepare_stemcell "\${args[@]}"
    prepare_manifest "\${args[@]}"
    ;;
  (release|dev)
    prepare_dev_release
    ;;
  (blobs)
    prepare_blobs
    ;;
  (stemcell)
    prepare_stemcell "\${args[@]}"
    ;;
  (manifest)
    prepare_manifest "\${args[@]}"
    ;;
  (destroy|delete)
    echo "bosh -n delete deployment ${releaseName} --force"
    bosh -n delete deployment ${releaseName} --force
    ;;
  (*) 
    usage 
    fail "Unknown action \${action}." 
    ;;
esac

exit 0
EOF

  chmod +x ${releaseName}-dev

  cat > templates/stub.yml <<EOF
---
meta:
  environment: ENVIRONMENT
  dns_root: microbosh
  security_groups:
    - ${releaseName}
  stemcell:
    name: STEMCELL

director_uuid: DIRECTOR-UUID

releases:
  - name: ${releaseName}
    version: latest
EOF

  cat > templates/deployment.yml <<EOF
meta:
  environment: (( merge ))
  stemcell: (( merge ))

name: (( meta.environment ))

director_uuid: (( merge ))

releases: (( merge ))

networks: (( merge ))

jobs: (( merge ))

properties: (( merge ))

compilation:
  workers: 6
  network: ${releaseName}
  reuse_compilation_vms: true
  cloud_properties: (( merge ))

update:
  canaries: 1
  max_in_flight: 1
  canary_watch_time: 30000-60000
  update_watch_time: 5000-60000
  serial: false

resource_pools:
  - name: small_z1
    network: ${releaseName}
    size: (( auto ))
    stemcell: (( meta.stemcell ))
    cloud_properties: (( merge ))
EOF

  cat > templates/jobs.yml <<EOF
meta:
  environment: ~

update:
  canaries: 1
  max_in_flight: 50
  canary_watch_time: 1000-30000
  update_watch_time: 1000-30000
  serial: false

jobs:
  - name: ${releaseName}
    templates:
    - name: ${releaseName}
      release: ${releaseName}
    instances: 0
    resource_pool: small_z1
    networks: (( merge ))
    persistent_disk: 0
    update:
      canaries: 10
    properties:
      ${releaseName}:

networks: (( merge ))

properties: {}
EOF

  cat > templates/infrastructure/warden.yml <<EOF
---
meta:
  environment: ${releaseName}-warden

  stemcell:
    name: bosh-warden-boshlite-ubuntu
    version: latest

update:
  canaries: 1
  max_in_flight: 50
  canary_watch_time: 1000-30000
  update_watch_time: 1000-30000

jobs:
  - name: ${releaseName}
    instances: 2
    networks:
      - name: ${releaseName}
        static_ips: ~
    properties:
      ${releaseName}:

compilation:
  cloud_properties:
    name: random

resource_pools:
  - name: small_z1
    cloud_properties:
      name: random

networks:
- name: ${releaseName}
  # Assumes up to 5 VMs, including 1 static and 4 dynamic.
  # Plus 5 (double the size) unused IPs, due to BOSH bug/quirk.
  subnets:
  - cloud_properties:
      name: random
    range: 10.244.2.0/30
    reserved:
    - 10.244.2.1
    static:
    - 10.244.2.2

  - cloud_properties:
      name: random
    range: 10.244.2.4/30
    reserved:
    - 10.244.2.5
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.8/30
    reserved:
    - 10.244.2.9
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.12/30
    reserved:
    - 10.244.2.13
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.16/30
    reserved:
    - 10.244.2.17
    static: []

  # Bonus double-sized network required due to BOSH oddity
  - cloud_properties:
      name: random
    range: 10.244.2.20/30
    reserved:
    - 10.244.2.21
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.24/30
    reserved:
    - 10.244.2.25
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.28/30
    reserved:
    - 10.244.2.29
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.32/30
    reserved:
    - 10.244.2.33
    static: []
  - cloud_properties:
      name: random
    range: 10.244.2.36/30
    reserved:
    - 10.244.2.37
    static: []
EOF

  cat > templates/infrastructure/aws-ec2.yml <<EOF
---
meta:
  environment: (( merge ))
  dns_root: (( merge ))
  security_groups: (( merge ))
  persistent_disk: 4096

  stemcell:
    name: bosh-aws-xen-ubuntu
    version: latest

jobs:
  - name: ${releaseName}
    instances: 2
    networks:
      - name: ${releaseName}
    persistent_disk: (( meta.persistent_disk ))
    properties:
      ${releaseName}:

compilation:
  cloud_properties:
    instance_type: m1.small

resource_pools:
  - name: small_z1
    cloud_properties:
      instance_type: m1.small

networks:
  - name: floating
    type: vip
    cloud_properties: {}
  - name: ${releaseName}
    type: dynamic
    cloud_properties:
      security_groups: (( meta.security_groups ))
EOF

  cat > LICENSE <<EOF
The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
EOF

  cat > config/final.yml <<EOF
---
final_name: ${releaseName}
EOF

  cat > config/dev.yml <<EOF
---
dev_name: ${releaseName}
EOF

  cat > config/blobs.yml <<EOF
--- {}
EOF

  cat > config/settings.yml <<EOF
---
provider:
  name: aws
  credentials:
    provider: AWS
    aws_access_key_id: {{AWS ACCESS KEY ID}}
    aws_secret_access_key: {{AWS SECRET KEY}}
  region: us-east-1
blobstore:
  name: ${releaseName}-boshrelease
EOF

  cat > config/private.yml <<EOF
---
blobstore:
  s3:
    access_key_id: {{S3 ACCESS KEY ID}}
    secret_access_key: {{S3 SECRET ACCESS KEY}}

EOF

cat > README.md <<EOF
# ${releaseName} BOSH release

## License

MIT, see LICENSE file.

## Usage: Configuration & Delpoyment

We will walk through an example of using with Cloud Foundry.

Be sure to first target your BOSH Director:
\`\`\`sh
bosh target \$BOSH_HOST
\`\`\`

If you are using bosh-lite you target like so:
\`\`\`sh
bosh target 192.168.50.4 lite
\`\`\`

Now clone this release and cd into the directory:
\`\`\`sh
git clone https://.../${releaseName}-boshrelease.git
cd ${releaseName}-boshrelease
\`\`\`

If you intend on using a final release upload it like so:
\`\`\`sh
bosh upload release releases/${releaseName}-1.yml
\`\`\`

Next download your manifest file for the deployment targeted so we can edit it and add the release.

\`\`\`sh
mkdir -p ~/workspace/manifests
bosh download manifest ${releaseName}-development ~/workspace/manifests/${releaseName}.yml
bosh deployment ~/workspace/manifests/${releaseName}.yml
\`\`\`

Alternatively, you can make your manifest. For example to prepare a manifest for 
bosh-lite (warden) using the 'centos' stemcell we would do the following:

\`\`\`sh
STEMCELL_OS=centos ./${releaseName}-dev manifest warden
\`\`\`

Edit the manifest file you downloaded (\`~/workspace/manifests/${releaseName}.yml\`) and add settings as follows.

Add to the list of known \`releases: \`

\`\`\`yaml
releases:
#...
- name: ${releaseName}
  version: latest
\`\`\`

For consistency also add to the \`releases: \` section under \`meta: \`

\`\`\`yaml
meta:
  environment: ${releaseName}-development
  releases:
  - name: cf
    version: latest
  - name: ${releaseName}
    version: latest
\`\`\`

Add properties such as tags.

\`\`\`yaml
properties:
# ... lots of properties ... at bottom put vv
  ${releaseName}:
\`\`\`

Now, for every \`instances: \` entry you wish to collocate this release with under \`jobs:\` add the following in the \`templates: \` section:

\`\`\`yaml
  - name: ${releaseName}
    release: ${releaseName}
\`\`\`

Now you can deploy,

\`\`\`yaml
bosh -n deploy
\`\`\`

Note that for each job you create in your release that you want to run on a 
Job VM you must add a \`templates:\` entry with the \`name:\` of the template
and the \`release:\` from which it comes.

## Deployments Blobs

The script \`./${releaseName}-dev blobs\` is used to prepare the \`blobs/\` directory
runs each package's \`prepare\` script from within the \`blobs/\`
directory. This will run each package's \`prepare\` script, if it exists,
which *should* download and prepare that package's required blobs 
(source tarballs, etc...) into the {package}/ directory.

## Development

Download your manifest file for the deployment targeted.

Target your BOSH Director as explained above, if you already have a deploy be sure to also download your manifest as per above.

If this is your first time cloning the release repository for develompent first prepare all of the things:
\`\`\`sh
./${releaseName}-dev all warden
\`\`\`

This is equivalent to:
\`\`\`sh
./${releaseName}-dev blobs
./${releaseName}-dev release
./${releaseName}-dev stemcell warden
./${releaseName}-dev manifest warden
\`\`\`

Once these steps have all been completed

\`\`\`sh
bosh -n deploy
\`\`\`

## Debugging & QA

See \`docs/notes.md\` for more information.

In order to gain access to one of the VMs, from a terminal \`bosh ssh ${releaseName} {VM Index}\`, 
for example to ssh to the first node:
\`\`\`sh
bosh ssh ${releaseName} 0 # Hop on and have a look around...
\`\`\`

If you want to destroy and recreate on specific node, say \`${releaseName}/0\`, you do the following:

\`\`\`sh
bosh -n recreate ${releaseName} 0 --force
\`\`\`

See \`docs/${releaseName}.md\` for release specific information.

EOF

  touch config/.gitkeep

  git init
  cat > .gitignore <<'EOF'
#*
*#
*.swp
*~
.DS_Store
.blobs
.blobs/
.dev_builds/
.final_builds/
.final_builds/jobs/**/*.tgz
.final_builds/packages/**/*.tgz
.idea
.vagrant
blobs/*
config/dev.yml
config/private.yml
config/settings.yml
dev_releases/
my*.yml
releases/*.tgz
manifests/*.yml
stemcells/*z
tmp/
EOF
  git add .
  git commit -a -m "${releaseName} BOSH Release Initialized."

  echo "${releaseName} BOSH Release created in ${PWD}"
}

createSrc() {
  echo "TODO: Implement create src function."
}

#
# Usage: bosh-create <action> <name list>
# Where <action> is one of release|job(s)|package(s)
# Name list is the list of names to create.
#

set -x
declare releaseName
jobs=()
packages=()
srcs=()
while (( $# ))
do
  token=$1 
  shift 1
  case ${token} in 
    (-job|-jobs|job|jobs) kind=job ;;
    (-release|release) kind=release ;;
    (package|packages|-package|-packages) kind=package ;;
    (-src|src) kind=src ;;
    (*)
      case ${kind} in
        (release) releaseName=$token ;;
        (job) jobs+=($token) ;;
        (package) packages+=($token) ;;
        (src) srcs+=($token) ;;
        (*) fail "One of -release,-job(s),-package(s),-src(s) must be given." ;;
      esac
      ;;
  esac
done

if [[ -n ${releaseName} ]]
then createRelease ${releaseName}
fi

for job in ${jobs[@]}
do createJob ${job}
done

for package in ${packages[@]}
do createPackage ${package}
done

for src in ${srcs[@]}
do createSrc ${package}
done

exit 0