[ci] improve mr comment by including dynamic urls

  stage: .post

  rules:

    - if: "$CI_PIPELINE_SOURCE == 'merge_request_event'"

      changes:

        paths:

          - entries/**/*.json

  dependencies:

    - build

  needs:

    - build

  before_script:

    - apk add curl jq

    - apk add curl jq git

  script:

    # Here are the comments that will always be added

    # - DOCUMENTATION="Did you update the corresponding documentation?"

    # Here we parse them into URL

    # - DOCUMENTATION_PARSED=$(echo $DOCUMENTATION | sed 's/ /%20/g')

    - ATLAS2024_JSON_URL=$CI_API_V4_URL/projects/$CI_PROJECT_ID/jobs/artifacts/refs/merge-requests/$CI_MERGE_REQUEST_IID/head/raw/atlas2024.json?job=build

    - ATLAS2025_JSON_URL=$CI_API_V4_URL/projects/$CI_PROJECT_ID/jobs/artifacts/refs/merge-requests/$CI_MERGE_REQUEST_IID/head/raw/atlas2025.json?job=build

    - BODY="You can preview the data [here for 2024](https://2024.canvas-atlas.fediverse.events?atlas=$(jq -rn --arg x "$ATLAS2024_JSON_URL" '$x|@uri')) and [here for 2025](https://2025.canvas-atlas.fediverse.events?atlas=$(jq -rn --arg x "$ATLAS2025_JSON_URL" '$x|@uri'))."

    - echo $BODY

    # And finally we post them on your merge request!

    - 'curl --fail --request POST --header "PRIVATE-TOKEN: ${GITLAB_CI_COMMENT_API_KEY}" "$CI_API_V4_URL/projects/$CI_PROJECT_ID/merge_requests/$CI_MERGE_REQUEST_IID/notes" --data-urlencode "body=$BODY"'

    - |

      # 📝 Build MR Comment Body

      MR_BODY=$(

        echo "Preview links: *(⚠ Links below will load files from this MR, exercise caution ⚠)*"

        git diff --name-only origin/main HEAD -- entries/**/*.json | while read line; do

          YEAR=${line##entries/}

          YEAR=${YEAR%/*}

          ID=$(jq .id "$line")

          NAME=$(jq .name "$line")

          JOB_ARTIFACT="$CI_API_V4_URL/projects/$CI_PROJECT_ID/jobs/artifacts/refs/merge-requests/$CI_MERGE_REQUEST_IID/head/raw/atlas$YEAR.json?job=build"

          PREVIEW_URL="https://$YEAR.canvas-atlas.fediverse.events?atlas=$(jq -rn --arg x "$JOB_ARTIFACT" '$x|@uri')#$ID"

          echo "* [$YEAR - $NAME]($PREVIEW_URL)"

        done

      )

    - |

      # 📧 Post comment on MR

      curl --fail-with-body -X POST \

      --header "PRIVATE-TOKEN: ${GITLAB_CI_COMMENT_API_KEY}" \

      --data-urlencode "body=$MR_BODY" \

      "$CI_API_V4_URL/projects/$CI_PROJECT_ID/merge_requests/$CI_MERGE_REQUEST_IID/notes"