/*
 * 文件定位：Agent 运行态实现层 / 运行契约面。
 * 核心目的：承载 runtime Extension Contract 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：承托和治理运行态，不吞并执行引擎、模型适配器或官方模块内部实现。
 * 对接：需要服务 applicationSurface、officialModuleSurface、governancePlane、invocationMethod 和 inspection/debug 等运行面。
 * 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。
 */
function isBlank(value) {
    return typeof value !== "string" || value.trim().length === 0;
}
function cleanList(values) {
    return [...new Set((values ?? []).map((value) => value.trim()).filter(Boolean))];
}
function runtimeError(code, message, boundary) {
    return {
        code,
        message,
        boundary,
        severity: "recoverable",
        safeForApplication: true,
        internalDetailExposed: false,
    };
}
function failure(code, message, boundary) {
    return {
        ok: false,
        error: runtimeError(code, message, boundary),
        events: ["runtime.extension.contract.rejected"],
    };
}
export function defineRuntimeExtensionContract(request) {
    if (isBlank(request.runtimeId)) {
        return failure("MISSING_RUNTIME_ID", "runtimeId is required before defining a runtime extension contract", "input");
    }
    if (isBlank(request.contractId)) {
        return failure("MISSING_CONTRACT_ID", "contractId is required before defining a runtime extension contract", "input");
    }
    if (isBlank(request.extensionId)) {
        return failure("MISSING_EXTENSION_ID", "extensionId is required before defining a runtime extension contract", "input");
    }
    if (request.mountSurface === undefined) {
        return failure("MISSING_MOUNT_SURFACE", "mountSurface is required before planning a runtime extension mount", "input");
    }
    if (request.runtimeReady === false) {
        return failure("RUNTIME_NOT_READY", "runtime extension contracts require a ready runtime", "runtime-state");
    }
    if (request.contract?.accepted === false) {
        return failure("CONTRACT_REJECTED", request.contract.reason ?? "runtime extension contract was rejected by contract surface", "contract");
    }
    if (request.governance?.accepted === false) {
        return failure("GOVERNANCE_REJECTED", request.governance.reason ?? "runtime extension contract was rejected by governance", "governance");
    }
    if (request.allowedMountSurfaces !== undefined &&
        !request.allowedMountSurfaces.includes(request.mountSurface)) {
        return failure("EXTENSION_SCOPE_DENIED", `extension mount surface ${request.mountSurface} is outside the runtime extension scope`, "scope");
    }
    const extensionId = request.extensionId.trim();
    return {
        ok: true,
        extension: {
            runtimeId: request.runtimeId.trim(),
            contractId: request.contractId.trim(),
            extensionId,
            kind: request.kind ?? "application-plugin",
            mountPlan: {
                extensionId,
                mountSurface: request.mountSurface,
                dryRun: true,
                requiresGovernance: true,
            },
            requiredCapabilities: cleanList(request.requiredCapabilities),
            exposedEvents: cleanList(request.exposedEvents),
            contractSurface: "runtime.contractSurface",
            internalRuntimeStateExposed: false,
            unsafeSideEffects: false,
        },
        events: ["runtime.extension.contract.defined"],
    };
}
