#!/usr/bin/env bash
set -euo pipefail

if [[ -n "${GITHUB_SERVER_URL:-}" ]]; then
  API_BASE="${GITHUB_SERVER_URL%/}/api/v1"
elif [[ -n "${GITEA_SERVER_URL:-}" ]]; then
  API_BASE="${GITEA_SERVER_URL%/}/api/v1"
else
  API_BASE="http://kankali.darkhelm.lan:3000/api/v1"
fi
TOKEN=""
REPO_FULL=""
WORKFLOW_FILE=""
TARGET_REF=""
HEAD_SHA=""
SOURCE_WORKFLOW=""
BASE_NEEDED=""

while [[ $# -gt 0 ]]; do
  case "$1" in
    --api-base)
      API_BASE="$2"
      shift 2
      ;;
    --token)
      TOKEN="$2"
      shift 2
      ;;
    --repo)
      REPO_FULL="$2"
      shift 2
      ;;
    --workflow)
      WORKFLOW_FILE="$2"
      shift 2
      ;;
    --ref)
      TARGET_REF="$2"
      shift 2
      ;;
    --head-sha)
      HEAD_SHA="$2"
      shift 2
      ;;
    --source-workflow)
      SOURCE_WORKFLOW="$2"
      shift 2
      ;;
    --base-needed)
      BASE_NEEDED="$2"
      shift 2
      ;;
    *)
      echo "Unknown argument: $1" >&2
      exit 2
      ;;
  esac
done

if [[ -z "$TOKEN" || -z "$REPO_FULL" || -z "$WORKFLOW_FILE" || -z "$TARGET_REF" || -z "$HEAD_SHA" || -z "$SOURCE_WORKFLOW" ]]; then
  echo "Missing required arguments" >&2
  exit 2
fi

REPO_OWNER="${REPO_FULL%/*}"
REPO_NAME="${REPO_FULL#*/}"

if [[ -n "$BASE_NEEDED" ]]; then
  PAYLOAD=$(cat <<EOF
{
  "ref": "${TARGET_REF}",
  "inputs": {
    "head_sha": "${HEAD_SHA}",
    "source_workflow": "${SOURCE_WORKFLOW}",
    "base_needed": "${BASE_NEEDED}"
  }
}
EOF
)
else
  PAYLOAD=$(cat <<EOF
{
  "ref": "${TARGET_REF}",
  "inputs": {
    "head_sha": "${HEAD_SHA}",
    "source_workflow": "${SOURCE_WORKFLOW}"
  }
}
EOF
)
fi

echo "Dispatching ${WORKFLOW_FILE} for ${HEAD_SHA} on ${TARGET_REF}"
curl -fsS -X POST \
  -H "Authorization: token ${TOKEN}" \
  -H "Content-Type: application/json" \
  "${API_BASE}/repos/${REPO_OWNER}/${REPO_NAME}/actions/workflows/${WORKFLOW_FILE}/dispatches" \
  -d "${PAYLOAD}"