package adminpatch

// Stable error codes returned in `Result.ErrorCode`. The values match
// the vocabulary frozen by `gamemaster/README.md §Error Model` and
// `gamemaster/api/internal-openapi.yaml`. Service-layer callers (Stage
// 19 handlers) import these names rather than redeclare them; renaming
// any of them is a contract change.
const (
	// ErrorCodeInvalidRequest reports that the request envelope failed
	// structural validation (empty GameID/Version, malformed semver).
	ErrorCodeInvalidRequest = "invalid_request"

	// ErrorCodeRuntimeNotFound reports that no runtime_records row
	// exists for the requested game id.
	ErrorCodeRuntimeNotFound = "runtime_not_found"

	// ErrorCodeRuntimeNotRunning reports that the runtime is not in
	// `running`. Patch is supported only for runtimes RTM can recreate
	// in place.
	ErrorCodeRuntimeNotRunning = "runtime_not_running"

	// ErrorCodeEngineVersionNotFound reports that the requested target
	// version is missing from the engine_versions registry, or that it
	// is present but `status=deprecated`.
	ErrorCodeEngineVersionNotFound = "engine_version_not_found"

	// ErrorCodeSemverPatchOnly reports that the requested target
	// version differs in major or minor from the current one. Patch
	// upgrades are constrained to same-major.minor.
	ErrorCodeSemverPatchOnly = "semver_patch_only"

	// ErrorCodeConflict reports that the runtime's status changed
	// concurrently between the lookup and the post-RTM image rotation
	// CAS.
	ErrorCodeConflict = "conflict"

	// ErrorCodeServiceUnavailable reports that a steady-state
	// dependency (PostgreSQL, Runtime Manager) was unreachable for
	// this call.
	ErrorCodeServiceUnavailable = "service_unavailable"

	// ErrorCodeInternal reports an unexpected error not classified by
	// the other codes.
	ErrorCodeInternal = "internal_error"
)