feat: gamemaster

gamemaster/internal/service/reportget/errors.go

@@ -0,0 +1,48 @@
+package reportget
+
+// 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`. Stage 19's REST handler imports
+// these names rather than redeclare them; renaming any of them is a
+// contract change.
+//
+// Note: the report-get operation does **not** require the runtime to be
+// in `running` state. Reports may be served against any runtime that
+// exists in `runtime_records`; an unreachable engine surfaces naturally
+// through `engine_unreachable`. Therefore `runtime_not_running` is not
+// part of this vocabulary.
+const (
+	// ErrorCodeInvalidRequest reports that the request envelope failed
+	// structural validation (empty required field, negative turn).
+	ErrorCodeInvalidRequest = "invalid_request"
+
+	// ErrorCodeRuntimeNotFound reports that no `runtime_records` row
+	// exists for the requested game id.
+	ErrorCodeRuntimeNotFound = "runtime_not_found"
+
+	// ErrorCodeForbidden reports that the caller is not an active member
+	// of the game, or that the (game_id, user_id) pair lacks a player
+	// mapping.
+	ErrorCodeForbidden = "forbidden"
+
+	// ErrorCodeEngineUnreachable reports that the engine /api/v1/report
+	// call returned a 5xx status, timed out, or could not be dispatched.
+	ErrorCodeEngineUnreachable = "engine_unreachable"
+
+	// ErrorCodeEngineValidationError reports that the engine returned
+	// 4xx. The body is forwarded verbatim through `Result.RawResponse`.
+	ErrorCodeEngineValidationError = "engine_validation_error"
+
+	// ErrorCodeEngineProtocolViolation reports that the engine response
+	// did not match the expected schema (empty body, malformed JSON).
+	// Stage 19 maps this to 502.
+	ErrorCodeEngineProtocolViolation = "engine_protocol_violation"
+
+	// ErrorCodeServiceUnavailable reports that a steady-state dependency
+	// (PostgreSQL, Lobby) was unreachable for this call.
+	ErrorCodeServiceUnavailable = "service_unavailable"
+
+	// ErrorCodeInternal reports an unexpected error not classified by
+	// the other codes.
+	ErrorCodeInternal = "internal_error"
+)