#!/bin/bash
set -e

BRANCH="dependency-updates-$(date +%Y%m%d)"
SUMMARY_FILE="/tmp/update_summary.md"

# configure git
git config user.email "ci@gitlab.com"
git config user.name "GitLab CI"

# create and push the update branch
git checkout -b "$BRANCH"
git add pyproject.toml poetry.lock
git commit -m "chore: update dependencies $(date +%Y-%m-%d)"
git push "https://oauth2:${GITLAB_TOKEN}@${CI_SERVER_HOST}/${CI_PROJECT_PATH}.git" "$BRANCH"

# build MR description from summary file
DESCRIPTION=$(cat "$SUMMARY_FILE")

# create MR via GitLab API
curl --fail --silent --show-error \
    --request POST \
    --header "PRIVATE-TOKEN: ${GITLAB_TOKEN}" \
    --header "Content-Type: application/json" \
    --data "{
        \"source_branch\": \"${BRANCH}\",
        \"target_branch\": \"main\",
        \"title\": \"chore: dependency updates $(date +%Y-%m-%d)\",
        \"description\": $(echo "$DESCRIPTION" | python3 -c 'import json,sys; print(json.dumps(sys.stdin.read()))'),
        \"labels\": \"dependencies\",
        \"assignee_ids\": [${GITLAB_ASSIGNEE_ID}],
        \"reviewer_ids\": [${GITLAB_ASSIGNEE_ID}],
        \"remove_source_branch\": true
    }" \
    "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/merge_requests"

echo "Merge request created for branch: $BRANCH"