#!/bin/bash

set -euo pipefail

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
AGENT_REPO_BASE="$SCRIPT_DIR/../.."
INTEGRATIONS_REPO_PATH=${INTEGRATIONS_REPO_PATH:-$SCRIPT_DIR/../../../integrations}

. $SCRIPT_DIR/../code-gen-helpers.sh

generate_selfdescribe_json

install_header='### INSTALLATION'

inject_notice() {
  local integrations_doc_path=$1
  local monitor_type=$2

  grep -B 10000 "$install_header" $integrations_doc_path

  cat <<EOH

**If you are using the new SmartAgent, see the docs for [the ${monitor_type}
monitor](https://github.com/signalfx/signalfx-agent/tree/master/docs/monitors/${monitor_type//\//-}.md)
for more information.  The configuration documentation below may be helpful as
well, but consult the SmartAgent repo's docs for the exact schema.**

EOH

  grep -A 10000 "$install_header" $integrations_doc_path | \
    grep -v "$install_header"
}

buffer_file=$(mktemp)

for i in $(seq 0 $(($(j '.Monitors | length')-1))); do
  monitor_type=$(j ".Monitors[$i].monitorType")
  integrations_dir=${INTEGRATIONS_REPO_PATH%/}/${monitor_type//\//-}

  if ! test -d $integrations_dir; then
    echo "$monitor_type does not seem to have a directory ($integrations_dir) in the integrations repo"
    continue
  fi

  if grep 'github.com/signalfx/signalfx-agent' $integrations_dir/README.md > /dev/null; then
    echo "Skipping $monitor_type since its integrations doc is already updated"
    continue
  fi

  inject_notice $integrations_dir/README.md $monitor_type > $buffer_file
  cp $buffer_file $integrations_dir/README.md
done