/**
 * `BRIEF` umbrella action — unit tests (W2-5).
 *
 * Asserts that the morning / evening / weekly briefing surface exposed by
 * the PRD §Daily Operations exists, composes structured sections from the
 * injected loaders, and dispatches via simile names. The narrative tests pin
 * the compose PIPELINE around the canned model reply — the prompt must carry
 * every aggregated section, the reply is trimmed before it lands on the
 * briefing, and a throwing / non-string / whitespace-only model degrades to
 * a narrative-less structured briefing — so they cannot be satisfied by
 * echoing the stub.
 */

import type {
  HandlerOptions,
  IAgentRuntime,
  Memory,
  UUID,
} from "@elizaos/core";
import { ModelType } from "@elizaos/core";
import { beforeEach, describe, expect, it, vi } from "vitest";

const mocks = vi.hoisted(() => ({
  hasOwnerAccess: vi.fn(async () => true),
}));

vi.mock("@elizaos/agent", () => ({
  hasOwnerAccess: mocks.hasOwnerAccess,
}));

import {
  __resetBriefComposersForTests,
  briefAction,
  setBriefComposers,
} from "../src/actions/brief.js";

function makeRuntime(
  options: {
    useModel?: (modelType: string, args: { prompt: string }) => Promise<string>;
  } = {},
): IAgentRuntime {
  return {
    agentId: "agent-brief-test" as UUID,
    logger: {
      info: () => undefined,
      warn: () => undefined,
      error: () => undefined,
      debug: () => undefined,
    },
    useModel:
      options.useModel ?? (async () => "Composed narrative from the model."),
  } as unknown as IAgentRuntime;
}

function makeMessage(text = "give me my brief"): Memory {
  return {
    id: "msg-brief-1" as UUID,
    entityId: "owner-1" as UUID,
    roomId: "room-brief-1" as UUID,
    content: { text },
  } as Memory;
}

async function callBrief(
  runtime: IAgentRuntime,
  message: Memory,
  parameters: Record<string, unknown>,
) {
  return briefAction.handler(
    runtime,
    message,
    undefined,
    { parameters } as unknown as HandlerOptions,
    async () => undefined,
  );
}

describe("BRIEF umbrella action — Daily Operations", () => {
  beforeEach(() => {
    __resetBriefComposersForTests();
    mocks.hasOwnerAccess.mockReset().mockResolvedValue(true);
  });

  describe("metadata", () => {
    it("exposes the canonical name and PRD similes", () => {
      expect(briefAction.name).toBe("BRIEF");
      const similes = briefAction.similes ?? [];
      for (const required of [
        "BRIEF",
        "BRIEF_ME",
        "MORNING_BRIEF",
        "EVENING_BRIEF",
        "WEEKLY_BRIEF",
        "COMPOSE_BRIEFING",
        "DAILY_DIGEST",
      ]) {
        expect(similes).toContain(required);
      }
    });

    it("validates as accessible for an owner-attached message", async () => {
      const ok = await briefAction.validate?.(
        makeRuntime(),
        makeMessage(),
        undefined,
      );
      expect(ok).toBe(true);
    });

    it("rejects calls with no subaction selector", async () => {
      const result = await callBrief(makeRuntime(), makeMessage(), {});
      expect(result.success).toBe(false);
      expect(result.data).toMatchObject({ error: "MISSING_SUBACTION" });
    });

    it("rejects callers that fail the owner-access check", async () => {
      mocks.hasOwnerAccess.mockResolvedValueOnce(false);
      const result = await callBrief(makeRuntime(), makeMessage(), {
        subaction: "compose_morning",
      });
      expect(result.success).toBe(false);
      expect(result.data).toMatchObject({ error: "PERMISSION_DENIED" });
    });
  });

  describe("compose_morning", () => {
    it("feeds the loader payload to the model and returns the trimmed narrative", async () => {
      // Padded model reply: the pipeline must return the TRIMMED narrative,
      // so a straight echo of the stub cannot satisfy the assertion.
      const useModel = vi.fn(
        async () => "  Composed narrative from the model.\n",
      );
      const runtime = makeRuntime({ useModel });
      setBriefComposers({
        loadCalendar: async () => [
          {
            id: "evt-1",
            title: "Board sync",
            startAt: "2026-05-11T09:00:00.000Z",
            endAt: "2026-05-11T10:00:00.000Z",
          },
        ],
        loadInbox: async () => [
          {
            id: "msg-1",
            channel: "gmail",
            senderName: "Bob",
            snippet: "Approve the SOW",
            urgency: "high",
            classification: "needs_reply",
          },
        ],
        loadLife: async () => [
          {
            id: "todo-1",
            kind: "todo",
            title: "Send NDA",
            dueAt: "2026-05-11T17:00:00.000Z",
          },
        ],
        loadMoney: async () => [
          {
            id: "charge-1",
            merchant: "Netflix",
            amountUsd: 15.99,
            cadence: "monthly",
            nextChargeAt: "2026-05-20T00:00:00.000Z",
          },
        ],
      });

      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_morning",
      });

      expect(result.success).toBe(true);
      const data = result.data as {
        subaction: string;
        briefing: {
          kind: string;
          period: string;
          sections: Record<string, unknown[]>;
          narrative?: string;
        };
      };
      expect(data.subaction).toBe("compose_morning");
      expect(data.briefing.kind).toBe("morning");
      expect(data.briefing.period).toBe("today");
      expect(data.briefing.sections.calendar).toHaveLength(1);
      expect(data.briefing.sections.inbox).toHaveLength(1);
      expect(data.briefing.sections.life).toHaveLength(1);
      expect(data.briefing.sections.money).toHaveLength(1);
      // Trimmed by the compose pass — not the raw model string.
      expect(data.briefing.narrative).toBe(
        "Composed narrative from the model.",
      );

      // The compose prompt must carry EVERY loader section the briefing
      // aggregated, plus the kind/period header — the model is narrating the
      // real payload, not free-associating.
      expect(useModel).toHaveBeenCalledTimes(1);
      const [modelType, args] = useModel.mock.calls[0] as [
        string,
        { prompt: string },
      ];
      expect(modelType).toBe(ModelType.TEXT_LARGE);
      expect(args.prompt).toContain("morning briefing for today");
      expect(args.prompt).toContain("Board sync"); // calendar
      expect(args.prompt).toContain("Approve the SOW"); // inbox
      expect(args.prompt).toContain("Send NDA"); // life
      expect(args.prompt).toContain("Netflix"); // money
      expect(args.prompt).toContain('"editorial"');
      expect(args.prompt).toContain('"itemId": "inbox:msg-1"');
      expect(args.prompt).toContain('"action": "lead"');
    });

    it("honors include flags by suppressing whole sections", async () => {
      setBriefComposers({
        loadCalendar: vi.fn(async () => []),
        loadInbox: vi.fn(async () => []),
        loadLife: vi.fn(async () => []),
        loadMoney: vi.fn(async () => []),
      });
      const result = await callBrief(makeRuntime(), makeMessage(), {
        subaction: "compose_morning",
        include: { calendar: true, inbox: false, life: false, money: false },
        format: "json",
      });
      expect(result.success).toBe(true);
      const data = result.data as {
        briefing: { sections: Record<string, unknown> };
      };
      expect(data.briefing.sections).toHaveProperty("calendar");
      expect(data.briefing.sections).not.toHaveProperty("inbox");
      expect(data.briefing.sections).not.toHaveProperty("life");
      expect(data.briefing.sections).not.toHaveProperty("money");
    });

    it("accepts simile-style action names mapped through the subaction map", async () => {
      const result = await callBrief(makeRuntime(), makeMessage(), {
        action: "WEEKLY_BRIEF",
      });
      expect(result.success).toBe(true);
      const data = result.data as {
        subaction: string;
        briefing: { period: string };
      };
      expect(data.subaction).toBe("compose_weekly");
      expect(data.briefing.period).toBe("this_week");
    });
  });

  describe("compose_evening", () => {
    it("uses the TEXT_LARGE model and skips compose pass in json format", async () => {
      const useModel = vi.fn(async () => "narrative text");
      const runtime = makeRuntime({ useModel });
      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_evening",
        format: "json",
      });
      expect(result.success).toBe(true);
      expect(useModel).not.toHaveBeenCalled();
      const data = result.data as { briefing: { narrative?: string } };
      expect(data.briefing.narrative).toBeUndefined();
    });

    it("calls TEXT_LARGE with the structured payload in the prompt", async () => {
      const useModel = vi.fn(async () => "morning narrative");
      const runtime = makeRuntime({ useModel });
      setBriefComposers({
        loadCalendar: async () => [
          {
            id: "evt-7",
            title: "Standup",
            startAt: "2026-05-11T10:00:00.000Z",
            endAt: "2026-05-11T10:15:00.000Z",
          },
        ],
      });
      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_morning",
      });
      expect(result.success).toBe(true);
      expect(useModel).toHaveBeenCalledTimes(1);
      const modelCall = useModel.mock.calls[0];
      expect(modelCall).toBeDefined();
      const [modelType, args] = modelCall as [string, { prompt: string }];
      expect(modelType).toBe(ModelType.TEXT_LARGE);
      expect(args.prompt).toContain("Standup");
    });
  });

  describe("narrative compose pass", () => {
    it("degrades to a narrative-less structured briefing when the model call throws", async () => {
      const useModel = vi.fn(async (): Promise<string> => {
        throw new Error("model unavailable");
      });
      const runtime = makeRuntime({ useModel });
      setBriefComposers({
        loadCalendar: async () => [
          {
            id: "evt-9",
            title: "Investor call",
            startAt: "2026-05-11T15:00:00.000Z",
            endAt: "2026-05-11T15:30:00.000Z",
          },
        ],
      });
      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_morning",
      });
      expect(result.success).toBe(true);
      expect(useModel).toHaveBeenCalledTimes(1);
      const data = result.data as {
        briefing: { narrative?: string; sections: { calendar: unknown[] } };
      };
      // The structured briefing survives; only the narrative is dropped.
      expect(data.briefing.narrative).toBeUndefined();
      expect(data.briefing.sections.calendar).toHaveLength(1);
    });

    it("omits the narrative when the model returns a non-string payload", async () => {
      const useModel = vi.fn(
        async () => ({ not: "a string" }) as unknown as string,
      );
      const runtime = makeRuntime({ useModel });
      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_morning",
      });
      expect(result.success).toBe(true);
      const data = result.data as { briefing: { narrative?: string } };
      expect(data.briefing.narrative).toBeUndefined();
    });

    it("omits the narrative when the model returns only whitespace", async () => {
      const useModel = vi.fn(async () => "   \n\t");
      const runtime = makeRuntime({ useModel });
      const result = await callBrief(runtime, makeMessage(), {
        subaction: "compose_morning",
      });
      expect(result.success).toBe(true);
      const data = result.data as { briefing: Record<string, unknown> };
      expect(data.briefing).not.toHaveProperty("narrative");
    });
  });

  describe("empty inputs", () => {
    it("still returns a structured briefing when every section is empty", async () => {
      const result = await callBrief(makeRuntime(), makeMessage(), {
        subaction: "compose_weekly",
        format: "json",
      });
      expect(result.success).toBe(true);
      const data = result.data as {
        briefing: { sections: { calendar: unknown[] } };
      };
      expect(data.briefing.sections.calendar).toHaveLength(0);
    });
  });
});