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## Capabilities

Only the first row is implemented. The rest is planned and tracked in the [Project Plan](https://git.tirsystem.com/TirSystem/github-action/src/branch/main/docs/project-plan.md), which also describes each use case.

| Capability | Status |
| --- | --- |
| Synchronize repository metadata (Gitea to GitHub mirror) | Implemented in `.gitea/scoped_workflows/`, with offline tests and a validation workflow |
| Configure and validate workflow credentials | Implemented for the sync workflow: preflight checks both tokens before any change ([guide](Credentials)) |
| Onboard a repository, manage runners, diagnose failures | Guides written ([onboarding](Onboarding), [troubleshooting](Troubleshooting)); scoped delivery to other repositories not yet verified; brief use cases open (MIL-002) |
| Shared quality checks | Planned (MIL-003) |
| Versioned release and publishing | Planned (MIL-004) |

### Sync GitHub metadata

Syncs the Gitea repository description and topics to the GitHub push mirror.

#### Cron

Daily at 03:17 UTC (`17 3 * * *`), plus every push to `main` and manual `workflow_dispatch`.

#### Workflow

```plantuml
@startuml
title Sync Gitea repository description and topics to GitHub

autonumber

actor "Push to main,\nmanual trigger, or schedule" as Trigger
participant "Gitea Actions\nsync-github-metadata" as Workflow
participant "Gitea REST API" as Gitea
participant "GitHub REST API" as GitHub

Trigger -> Workflow: Start workflow
activate Workflow

Workflow -> Workflow: Read and validate secrets
note right
TOKEN_FOR_GITEA
CREDENTIALS_FOR_GITHUB
end note

alt secret validation failed
  Workflow --> Trigger: workflow failed
end


Workflow -> Gitea: GET /repos/{owner}/{repo}
Gitea --> Workflow: Description and topics

Workflow -> Gitea: GET /repos/{owner}/{repo}/push_mirrors
Gitea --> Workflow: Push mirror response

alt mirrors is not a list
    Workflow --> Trigger: Log a warning and succeed\n(GitHub metadata not synced)
else mirrors is a list with no GitHub mirror
    Workflow --> Trigger: Log that there is nothing to sync and succeed
else mirrors is a list
    Workflow -> Workflow: Find GitHub owner and repo from remote_address

    Workflow -> GitHub: PATCH /repos/{owner}/{repo}\n{description}
    GitHub --> Workflow: Repository updated

    Workflow -> GitHub: PUT /repos/{owner}/{repo}/topics\n{names}
    GitHub --> Workflow: Topics updated

    Workflow --> Trigger: Sync completed
else Gitea API denies access
    Gitea --> Workflow: HTTP 403 Forbidden
    Workflow --> Trigger: Workflow fails
else GitHub API denies access
    GitHub --> Workflow: HTTP error
    Workflow --> Trigger: Workflow fails
end
deactivate Workflow
@enduml
```