/*
 * 文件定位：Agent 执行引擎 / 执行核心逻辑 / 事件暴露面。
 * 核心目的：承载 UIEvent 这一能力位点。
 * 能力要求1：需要把文件名表达的能力落实成清晰的类型、输入输出和最小行为。
 * 能力要求2：如果后续发现语义不足，应优先补接口契约，而不是把逻辑散落到相邻文件。
 * 边界：只服务 agentCore 内核，不写上层产品逻辑。
 * 对接：需要被 runtime.execEngine 拉起，并和 mainLoop、stateEngine、事件暴露、工具调用策略接通。
 * 实现提示：先补稳定类型契约、最小可测行为和清晰错误边界，再接入真实执行逻辑。
 */
export const uiEventDescriptor = {
    plane: "eventExposurePlane",
    category: "ui",
    purpose: "expose UI execution events for runtime subscribers without running product UI logic",
    unsafeSideEffects: false,
};
function isBlank(value) {
    return typeof value !== "string" || value.trim().length === 0;
}
function isRecord(value) {
    return typeof value === "object" && value !== null && !Array.isArray(value);
}
function cleanList(values) {
    return [...new Set((values ?? []).map((value) => value.trim()).filter(Boolean))];
}
function failure(code, message, boundary) {
    return {
        ok: false,
        error: {
            code,
            message,
            boundary,
            safeForRuntimeInspection: true,
            internalDetailExposed: false,
        },
        events: ["eventExposure.ui.rejected"],
    };
}
function resolveScopes(requestedScopes, allowedScopes) {
    const requested = cleanList(requestedScopes);
    const allowed = cleanList(allowedScopes);
    if (requested.length === 0) {
        return [];
    }
    const denied = requested.filter((scope) => !allowed.includes(scope));
    if (denied.length > 0) {
        return failure("SCOPE_DENIED", `UI event scope ${denied[0]} is outside runtime governance`, "scope");
    }
    return requested;
}
export function exposeUIEvent(request) {
    if (request === undefined || isBlank(request.runtimeId)) {
        return failure("MISSING_RUNTIME_ID", "UI event exposure requires runtimeId", "input");
    }
    if (isBlank(request.sessionId)) {
        return failure("MISSING_SESSION_ID", "UI event exposure requires sessionId", "input");
    }
    if (isBlank(request.kind)) {
        return failure("MISSING_EVENT_KIND", "UI event exposure requires an event kind", "input");
    }
    if (isBlank(request.eventSource)) {
        return failure("MISSING_EVENT_SOURCE", "UI event exposure requires an event source", "input");
    }
    if (request.payload !== undefined && !isRecord(request.payload)) {
        return failure("INVALID_EVENT_PAYLOAD", "UI event payload must be a plain record", "input");
    }
    if (request.runtimeReady === false) {
        return failure("RUNTIME_NOT_READY", "UI events can only be exposed through a ready runtime", "runtime-state");
    }
    if (request.contract?.accepted === false) {
        return failure("CONTRACT_REJECTED", request.contract.reason ?? "UI event exposure was rejected by contract surface", "contract");
    }
    if (request.governance?.accepted === false) {
        return failure("GOVERNANCE_REJECTED", request.governance.reason ?? "UI event exposure was rejected by runtime governance", "governance");
    }
    const acceptedScopes = resolveScopes(request.requestedScopes, request.allowedScopes);
    if (!Array.isArray(acceptedScopes)) {
        return acceptedScopes;
    }
    const runtimeId = (request.runtimeId ?? "").trim();
    const sessionId = request.sessionId?.trim() ?? "";
    const kind = request.kind?.trim() ?? "";
    return {
        ok: true,
        event: {
            plane: "eventExposurePlane",
            category: "ui",
            runtimeId,
            sessionId,
            eventId: request.eventId?.trim() || `${runtimeId}:${sessionId}:ui:${kind}`,
            kind,
            eventSource: request.eventSource?.trim() ?? "",
            payload: request.payload ?? {},
            acceptedScopes,
            subscribers: cleanList(request.subscribers),
            visibility: "runtime-subscribable",
            audit: {
                dryRun: true,
                unsafeSideEffects: false,
                contractSurface: "runtime.contractSurface",
                governanceRequired: true,
            },
        },
        events: ["eventExposure.ui.exposed"],
    };
}
