#!/bin/sh

OPEN_MERGE_REQUESTS="[\"my/project!14\", \"my/other/project!2\"]"

# parse input args and environment variables
if [ -z "$OPEN_MERGE_REQUESTS" ]; then echo "$0: need OPEN_MERGE_REQUESTS"; exit 1; fi
if [ -z "$GITLAB_TOKEN" ]; then echo "$0: need GITLAB_TOKEN"; exit 1; fi

curl_token="PRIVATE-TOKEN: ${GITLAB_TOKEN}"

# get project id from merge request strings like "<path-to-project>!<merge-request-iid"
for mr in "$( echo "$OPEN_MERGE_REQUESTS" | jq -c '.[]' )"; do
  
  # split MR string on "!" into project path and MR IID
  project_path="$( echo "$mr" | jq -r 'split("!")[0]' )"
  mr_iid="$( echo "$mr" | jq -r 'split("!")[1]' )"

  # get list of projects matching project name, only ones this account (from GITLAB_TOKEN) has membership to
  project_search="https://gitlab.com/api/v4/projects?search=$(basename "$project_path")&membership=true"
  curl -sSL -H "$curl_token" "$project_search" > "$projects"

  # get project id from project matching full project path
  project_id="$( jq -Rr --arg p "$project_path" 'fromjson? | .[] | select(.path_with_namespace == $p).id' "$projects" )"
  is_success="$( echo "$project_id" | jq -Rr 'fromjson? | type=="number"' )"
  if [ "$is_success" != "true" ]; then echo "ERROR: couldn't find \"$project_path\""; cat "$response"; exit 1; fi
  
#   # make POST request to GitLab API with comment string, then write response to JSON file
#   api_url="https://gitlab.com/api/v4/projects/${project_id}/merge_requests/${mr_iid}/notes"
#   curl -s -X POST -H "$curl_token" "${api_url}" --data-urlencode "body=${MR_COMMENT_BODY}" > "$response"
#   is_success="$( jq -R 'fromjson? | has("noteable_id")' "$response" )"
#   if [ "$is_success" != "true" ]; then echo "ERROR"; cat "$response"; exit 1; fi
  
#   # append response object as one line to responses file
#   note_iid="$( jq -Rr 'fromjson? | .noteable_id' "$response" )"
#   note_url="https://gitlab.com/${project_path}/-/merge_requests/${mr_iid}#note_${note_iid}"
#   echo "$( jq -cR --arg url "$note_url" 'fromjson? | . + {note_url: $url}' "$response" )" >> "$responses"
  
done
  
# # return filepath to JSON response after joining lines of objects into array using slurp flag
# echo "$( jq -s '.' "$responses" )" > "$responses"
# cat "$responses"