/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *--------------------------------------------------------------------------------------------*/

import { describe, expect, it } from "vitest";
import { approveAll, createCanvas } from "../../src/index.js";
import { createSdkTestContext } from "./harness/sdkTestContext.js";

describe("Canvas RPC", async () => {
    const openCalls: Array<{ canvasId: string; instanceId: string; input?: unknown }> = [];
    const closeCalls: Array<{ canvasId: string; instanceId: string }> = [];
    const actionCalls: Array<{
        canvasId: string;
        instanceId: string;
        actionName: string;
        input?: unknown;
    }> = [];

    const counter = createCanvas({
        id: "counter",
        displayName: "Counter",
        description: "A simple counter canvas for e2e testing",
        inputSchema: {
            type: "object",
            properties: { startValue: { type: "number" } },
        },
        actions: [
            {
                name: "increment",
                description: "Increment the counter",
                inputSchema: {
                    type: "object",
                    properties: { amount: { type: "number" } },
                },
                handler: (ctx) => {
                    actionCalls.push({
                        canvasId: ctx.canvasId,
                        instanceId: ctx.instanceId,
                        actionName: ctx.actionName,
                        input: ctx.input,
                    });
                    return { newValue: 42 };
                },
            },
        ],
        open: (ctx) => {
            openCalls.push({
                canvasId: ctx.canvasId,
                instanceId: ctx.instanceId,
                input: ctx.input,
            });
            return {
                url: "https://example.test/counter",
                title: "Counter Canvas",
                status: "ready",
            };
        },
        onClose: (ctx) => {
            closeCalls.push({
                canvasId: ctx.canvasId,
                instanceId: ctx.instanceId,
            });
        },
    });

    const { copilotClient: client } = await createSdkTestContext();

    it("discovers declared canvases via session.canvas.list", async () => {
        const session = await client.createSession({
            onPermissionRequest: approveAll,
            canvases: [counter],
        });

        const result = await session.rpc.canvas.list();
        expect(result.canvases).toHaveLength(1);
        expect(result.canvases[0]).toMatchObject({
            canvasId: "counter",
            displayName: "Counter",
            description: "A simple counter canvas for e2e testing",
        });

        await session.disconnect();
    });

    it("opens a canvas instance via session.canvas.open round-trip", async () => {
        openCalls.length = 0;

        const session = await client.createSession({
            onPermissionRequest: approveAll,
            canvases: [counter],
        });

        const result = await session.rpc.canvas.open({
            canvasId: "counter",
            instanceId: "counter-1",
            input: { startValue: 10 },
        });

        expect(result.url).toBe("https://example.test/counter");
        expect(result.title).toBe("Counter Canvas");
        expect(openCalls).toHaveLength(1);
        expect(openCalls[0]).toMatchObject({
            canvasId: "counter",
            instanceId: "counter-1",
            input: { startValue: 10 },
        });

        // Verify it appears in the open list
        const openList = await session.rpc.canvas.listOpen();
        expect(openList.openCanvases).toHaveLength(1);
        expect(openList.openCanvases[0]).toMatchObject({
            canvasId: "counter",
            instanceId: "counter-1",
        });

        await session.disconnect();
    });

    it("invokes an action on an open canvas instance", async () => {
        openCalls.length = 0;
        actionCalls.length = 0;

        const session = await client.createSession({
            onPermissionRequest: approveAll,
            canvases: [counter],
        });

        await session.rpc.canvas.open({
            canvasId: "counter",
            instanceId: "counter-2",
            input: {},
        });

        const result = await session.rpc.canvas.action.invoke({
            instanceId: "counter-2",
            actionName: "increment",
            input: { amount: 5 },
        });

        expect(result.result).toEqual({ newValue: 42 });
        expect(actionCalls).toHaveLength(1);
        expect(actionCalls[0]).toMatchObject({
            canvasId: "counter",
            instanceId: "counter-2",
            actionName: "increment",
            input: { amount: 5 },
        });

        await session.disconnect();
    });

    it("closes an open canvas instance via session.canvas.close", async () => {
        openCalls.length = 0;
        closeCalls.length = 0;

        const session = await client.createSession({
            onPermissionRequest: approveAll,
            canvases: [counter],
        });

        await session.rpc.canvas.open({
            canvasId: "counter",
            instanceId: "counter-3",
            input: {},
        });
        expect(closeCalls).toHaveLength(0);

        await session.rpc.canvas.close({ instanceId: "counter-3" });
        expect(closeCalls).toHaveLength(1);
        expect(closeCalls[0]).toMatchObject({
            canvasId: "counter",
            instanceId: "counter-3",
        });

        // Verify it's no longer in the open list
        const openList = await session.rpc.canvas.listOpen();
        expect(openList.openCanvases).toHaveLength(0);

        await session.disconnect();
    });
});