/**
 * ChatEvent 协议（前后端契约）
 *
 * 后端把 OpenCode 的复杂 Part / Event 协议归一化成简单线性事件流，
 * 前端只消费这一种协议，不用管 OpenCode 的内部结构。
 *
 * 见 plan-v2.md 第三节。
 */
export interface ChatTokenUsage {
    input: number;
    output: number;
    reasoning: number;
    cacheRead: number;
    cacheWrite: number;
    cost?: number;
}
export interface ChatTodoItem {
    id: string;
    content: string;
    status: string;
    priority?: string;
}
export interface ChatMessageMeta {
    id: string;
    role: 'user' | 'assistant';
    createdAt: number;
    parentId?: string;
    model?: {
        providerId: string;
        modelId: string;
    };
    agent?: string;
}
export interface ChatPermissionRequest {
    id: string;
    sessionId: string;
    tool: string;
    description: string;
    risk?: string;
    messageId?: string;
    callId?: string;
    metadata?: Record<string, unknown>;
}
export type ChatEvent = {
    type: 'message_start';
    msg: ChatMessageMeta;
} | {
    type: 'text_delta';
    msgId: string;
    text: string;
} | {
    type: 'reasoning_delta';
    msgId: string;
    text: string;
} | {
    type: 'tool_start';
    msgId: string;
    tool: {
        id: string;
        callId: string;
        name: string;
        input: unknown;
        title?: string;
    };
} | {
    type: 'tool_delta';
    msgId: string;
    toolId: string;
    output: string;
} | {
    type: 'tool_end';
    msgId: string;
    toolId: string;
    callId: string;
    name: string;
    result: string;
    isError: boolean;
    title?: string;
    durationMs?: number;
} | {
    type: 'message_end';
    msgId: string;
    usage?: ChatTokenUsage;
    finish?: string;
    error?: string;
} | {
    type: 'permission_ask';
    req: ChatPermissionRequest;
} | {
    type: 'permission_resolved';
    reqId: string;
    decision: 'allow' | 'reject' | 'always';
} | {
    type: 'task_update';
    todos: ChatTodoItem[];
} | {
    type: 'session_idle';
    sessionId: string;
} | {
    type: 'session_status';
    sessionId: string;
    status: string;
} | {
    type: 'error';
    message: string;
} | {
    type: 'keepalive';
};
export type ChatEventType = ChatEvent['type'];
/** 带 sessionId 定位的事件（bus 内部使用） */
export type AddressedChatEvent = {
    sessionId: string;
    event: ChatEvent;
    /** 单调递增序号，用于客户端断线重连时做 replay */
    seq: number;
    /** 事件归一化时间戳（毫秒） */
    timestamp: number;
};
//# sourceMappingURL=types.d.ts.map