Nixpkgs Pull Request Trackertitle

# if changes entered common branches ?
curl https://blog.nyaw.xyz/api/pr-stat?pr=114514

# if changes entered specific branches ?
...?pr=11451&branch=nixos-24.11&branch=staging-next

# if changes entered, specific repo, and branch
...?repo=daeuniverse/flake.nix&pr=116&branch=unstable'

# ...?pr=123&branch=master&branch=nixos-24.11&token=xxxxyyyy&repo=xx/yy
curl https://blog.nyaw.xyz/api/pr-stat{?pr,branch*,token,repo}

openapi: 3.0.3
info:
  title: PR Status API
  version: 1.0.0
  description: API to fetch the status of a pull request for different branches

paths:
  /api/pr-stat:
    get:
      summary: Get PR Status
      description: Retrieve the status of a pull request across multiple branches
      parameters:
        - name: pr
          in: query
          required: true
          schema:
            type: integer
          description: The pull request number
        - name: token
          in: query
          required: false
          schema:
            type: string
          description: API token that used in server query (to github)
        - name: repo
          in: query
          required: false
          schema:
            type: string
          description: repository, formated as nixos/nixpkgs, optional
        - name: branch
          in: query
          required: false
          schema:
            type: array
            items:
              type: string
          description: Branches to check the PR status against. Leave empty to query common branches
      responses:
        '200':
          description: Successful response with the PR status
          content:
            application/json:
              schema:
                type: object
                properties:
                  title:
                    type: string
                    description: The title of the pull request
                    example: "insync: 3.9.1.60010 -> 3.9.3.60019"
                  state:
                    type: string
                    description: The state of the pull request (e.g., open, closed, merged)
                    example: "merged"
                  user:
                    type: string
                    description: The username of the person who created the pull request
                    example: "hellwolf"
                  merge_commit_sha:
                    type: string
                    description: The commit sha
                    example: "xyxxc3e6d7fb989b63c4db1f76c01c1138930704"
                  merge:
                    type: object
                    description: Merge status for various branches
                    additionalProperties:
                      type: boolean
                    example:
                      staging-next: true
                      master: true
                      nixos-unstable-small: true
                      nixpkgs-unstable: true
                      nixos-unstable: true
        '400':
          description: Invalid request parameters
        '404':
          description: PR not found
        '500':
          description: Sth else. Describe in body, maybe