// biome-ignore assist/source/organizeImports: import mocks first
import {afterAll, afterEach, beforeAll, beforeEach, describe, expect, it, vi} from "vitest";
import * as data from "../mocks/data";
import {mockLogger} from "../mocks/logger";
import {mockMQTTEndAsync, mockMQTTPublishAsync} from "../mocks/mqtt";
import {flushPromises} from "../mocks/utils";
import type {Device as ZhDevice} from "../mocks/zigbeeHerdsman";
import {devices, mockController as mockZHController, returnDevices} from "../mocks/zigbeeHerdsman";

import fs from "node:fs";
import path from "node:path";
import stringify from "json-stable-stringify-without-jsonify";
import * as zhc from "zigbee-herdsman-converters";
import {Controller} from "../../lib/controller";
import ExternalConverters from "../../lib/extension/externalConverters";
import type Device from "../../lib/model/device";
import * as settings from "../../lib/util/settings";

const BASE_DIR = "external_converters";

describe("Extension: ExternalConverters", () => {
    const mockBasePath = path.join(data.mockDir, BASE_DIR);
    let controller: Controller;

    const rmSyncSpy = vi.spyOn(fs, "rmSync");
    const writeFileSyncSpy = vi.spyOn(fs, "writeFileSync");

    const zhcAddExternalDefinitionSpy = vi.spyOn(zhc, "addExternalDefinition");
    const zhcRemoveExternalDefinitionsSpy = vi.spyOn(zhc, "removeExternalDefinitions");

    const mocksClear = [
        mockMQTTEndAsync,
        mockMQTTPublishAsync,
        mockLogger.debug,
        mockLogger.error,
        mockZHController.stop,
        devices.bulb.save,
        rmSyncSpy,
        writeFileSyncSpy,
        zhcAddExternalDefinitionSpy,
        zhcRemoveExternalDefinitionsSpy,
    ];

    const useAssets = (mtype: "cjs" | "mjs"): void => {
        fs.cpSync(path.join(__dirname, "..", "assets", BASE_DIR, mtype), mockBasePath, {recursive: true});
    };

    const getFileCode = (mtype: "cjs" | "mjs", fileName: string): string => {
        return fs.readFileSync(path.join(__dirname, "..", "assets", BASE_DIR, mtype, fileName), "utf8");
    };

    const getZ2MDevice = (zhDevice: string | number | ZhDevice): Device => {
        return controller.zigbee.resolveEntity(zhDevice)! as Device;
    };

    const resetExtension = async (): Promise<void> => {
        await controller.removeExtension(controller.getExtension("ExternalConverters")!);
        await controller.addExtension(new ExternalConverters(...controller.extensionArgs));
    };

    beforeAll(async () => {
        vi.useFakeTimers();

        controller = new Controller(vi.fn(), vi.fn());
        await controller.start();
        await flushPromises();
    });

    afterAll(() => {
        vi.useRealTimers();
    });

    beforeEach(async () => {
        zhc.removeExternalDefinitions(); // remove all external converters
        await controller.zigbee.resolveDevicesDefinitions(true);
        for (const mock of mocksClear) mock.mockClear();
        data.writeDefaultConfiguration();
        data.writeDefaultState();
        settings.reRead();
        returnDevices.push(devices.external_converter_device.ieeeAddr, devices.coordinator.ieeeAddr);
    });

    afterEach(async () => {
        await controller?.stop();
        await flushPromises();

        expect(fs.existsSync(path.join(mockBasePath, "node_modules"))).toStrictEqual(false);

        fs.rmSync(mockBasePath, {recursive: true, force: true});
    });

    describe("from folder", () => {
        beforeEach(() => {
            controller = new Controller(vi.fn(), vi.fn());
        });

        it("loads nothing", async () => {
            await controller.start();
            await flushPromises();

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith("zigbee2mqtt/bridge/converters", stringify([]), {retain: true});
        });

        it("CJS: loads converters", async () => {
            useAssets("cjs");

            await controller.start();
            await flushPromises();

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.js", code: getFileCode("cjs", "mock-external-converter-multiple.js")},
                    {name: "mock-external-converter.js", code: getFileCode("cjs", "mock-external-converter.js")},
                ]),
                {retain: true},
            );
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(2);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(1, "mock-external-converter-multiple.js");
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(2, "mock-external-converter.js");
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                1,
                expect.objectContaining({
                    mock: 1,
                    model: "external_converters_device_1",
                    zigbeeModel: ["external_converter_device_1"],
                    vendor: "external_1",
                    description: "external_1",
                }),
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                2,
                expect.objectContaining({
                    mock: 2,
                    model: "external_converters_device_2",
                    zigbeeModel: ["external_converter_device_2"],
                    vendor: "external_2",
                    description: "external_2",
                }),
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                3,
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter",
                }),
            );

            const bridgeDevices = mockMQTTPublishAsync.mock.calls.filter((c) => c[0] === "zigbee2mqtt/bridge/devices");
            expect(bridgeDevices.length).toBe(1);
            expect(JSON.parse(bridgeDevices[0][1])).toEqual(
                expect.arrayContaining([
                    expect.objectContaining({
                        model_id: "external_converter_device",
                        supported: true,
                        definition: expect.objectContaining({
                            description: "external/converter",
                            model: "external_converter_device",
                        }),
                    }),
                ]),
            );
        });

        it("MJS: loads converters", async () => {
            useAssets("mjs");

            await controller.start();
            await flushPromises();

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.mjs", code: getFileCode("mjs", "mock-external-converter-multiple.mjs")},
                    {name: "mock-external-converter.mjs", code: getFileCode("mjs", "mock-external-converter.mjs")},
                ]),
                {retain: true},
            );
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(2);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(1, "mock-external-converter-multiple.mjs");
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(2, "mock-external-converter.mjs");
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                1,
                expect.objectContaining({
                    mock: 1,
                    model: "external_converters_device_1",
                    zigbeeModel: ["external_converter_device_1"],
                    vendor: "external_1",
                    description: "external_1",
                }),
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                2,
                expect.objectContaining({
                    mock: 2,
                    model: "external_converters_device_2",
                    zigbeeModel: ["external_converter_device_2"],
                    vendor: "external_2",
                    description: "external_2",
                }),
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenNthCalledWith(
                3,
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter",
                }),
            );

            const bridgeDevices = mockMQTTPublishAsync.mock.calls.filter((c) => c[0] === "zigbee2mqtt/bridge/devices");
            expect(bridgeDevices.length).toBe(1);
            expect(JSON.parse(bridgeDevices[0][1])).toEqual(
                expect.arrayContaining([
                    expect.objectContaining({
                        model_id: "external_converter_device",
                        supported: true,
                        definition: expect.objectContaining({
                            description: "external/converter",
                            model: "external_converter_device",
                        }),
                    }),
                ]),
            );
        });

        it("updates after edit from MQTT", async () => {
            const converterName = "mock-external-converter.js";
            let converterCode = getFileCode("cjs", converterName);

            useAssets("cjs");
            await controller.start();
            await flushPromises();

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.js", code: getFileCode("cjs", "mock-external-converter-multiple.js")},
                    {name: converterName, code: converterCode},
                ]),
                {retain: true},
            );

            converterCode = converterCode.replace('posix.join("external", "converter")', 'posix.join("external", "converter", "edited")');

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter/edited",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.js", code: getFileCode("cjs", "mock-external-converter-multiple.js")},
                    {name: "mock-external-converter.js", code: converterCode},
                ]),
                {retain: true},
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenLastCalledWith(
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter/edited",
                    externalConverterName: "mock-external-converter.js",
                }),
            );

            converterCode = converterCode.replace('posix.join("external", "converter", "edited")', 'posix.join("external", "converter")');

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: "mock-external-converter.js", code: converterCode},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.js", code: getFileCode("cjs", "mock-external-converter-multiple.js")},
                    {name: "mock-external-converter.js", code: converterCode},
                ]),
                {retain: true},
            );
            expect(zhcAddExternalDefinitionSpy).toHaveBeenLastCalledWith(
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter",
                    externalConverterName: "mock-external-converter.js",
                }),
            );
        });

        it("loads all valid converters, relocates & skips ones with errors", async () => {
            useAssets("mjs");

            const filepath = path.join(mockBasePath, "invalid.mjs");

            fs.writeFileSync(filepath, "invalid js", "utf8");

            await controller.start();
            await flushPromises();

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([
                    {name: "mock-external-converter-multiple.mjs", code: getFileCode("mjs", "mock-external-converter-multiple.mjs")},
                    {name: "mock-external-converter.mjs", code: getFileCode("mjs", "mock-external-converter.mjs")},
                ]),
                {retain: true},
            );
            expect(fs.existsSync(filepath)).toStrictEqual(false);
            expect(fs.existsSync(path.join(mockBasePath, "invalid.mjs.invalid"))).toStrictEqual(true);
            expect(mockLogger.error).toHaveBeenCalledWith(expect.stringContaining("Parse failure: Expected ';', '}' or <eof>"));
        });
    });

    describe("from MQTT", () => {
        it("CJS: saves and removes", async () => {
            // Create a dummy 'node_modules' file to test to externalJS.ts recreates the symlink.
            fs.mkdirSync(mockBasePath);
            fs.writeFileSync(path.join(mockBasePath, "node_modules"), "");

            const converterName = "foo.js";
            const converterCode = getFileCode("cjs", "mock-external-converter.js");

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "Automatically generated definition",
                model: "external_converter_device",
                vendor: "",
                zigbeeModel: ["external_converter_device"],
            });

            //-- SAVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(writeFileSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), converterCode, "utf8");
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(1);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(1, converterName);
            expect(zhcAddExternalDefinitionSpy).toHaveBeenCalledWith(
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter",
                }),
            );
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([{name: converterName, code: converterCode}]),
                {
                    retain: true,
                },
            );
            // Ensure that the .tmp import file is deleted.
            expect(fs.readdirSync(mockBasePath)).toStrictEqual(["foo.js", "node_modules"]);

            //-- REMOVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/remove",
                message: {name: converterName},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "Automatically generated definition",
                model: "external_converter_device",
                vendor: "",
                zigbeeModel: ["external_converter_device"],
            });
            expect(rmSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), {force: true});
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(2);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(2, converterName);
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith("zigbee2mqtt/bridge/converters", stringify([]), {retain: true});
        });

        it("MJS: saves and removes", async () => {
            const converterName = "foo.mjs";
            const converterCode = getFileCode("mjs", "mock-external-converter.mjs");

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "Automatically generated definition",
                model: "external_converter_device",
                vendor: "",
                zigbeeModel: ["external_converter_device"],
            });

            //-- SAVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "external/converter",
                model: "external_converter_device",
                vendor: "external",
                zigbeeModel: ["external_converter_device"],
            });
            expect(writeFileSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), converterCode, "utf8");
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(1);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(1, converterName);
            expect(zhcAddExternalDefinitionSpy).toHaveBeenCalledWith(
                expect.objectContaining({
                    mock: true,
                    zigbeeModel: ["external_converter_device"],
                    vendor: "external",
                    model: "external_converter_device",
                    description: "external/converter",
                }),
            );
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/converters",
                stringify([{name: converterName, code: converterCode}]),
                {
                    retain: true,
                },
            );

            //-- REMOVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/remove",
                message: {name: converterName},
            });

            expect(getZ2MDevice(devices.external_converter_device).definition).toMatchObject({
                description: "Automatically generated definition",
                model: "external_converter_device",
                vendor: "",
                zigbeeModel: ["external_converter_device"],
            });
            expect(rmSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), {force: true});
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenCalledTimes(2);
            expect(zhcRemoveExternalDefinitionsSpy).toHaveBeenNthCalledWith(2, converterName);
            expect(mockMQTTPublishAsync).toHaveBeenCalledWith("zigbee2mqtt/bridge/converters", stringify([]), {retain: true});
        });

        it("returns error on invalid name", async () => {
            const converterName = "foo1";

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: "a"},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/save",
                expect.stringContaining(`JavaScript file must have '.mjs', '.js' or '.cjs' extension`),
                {},
            );
            expect(writeFileSyncSpy).toHaveBeenCalledTimes(0);
        });

        it("returns error on invalid code", async () => {
            const converterName = "foo1.js";
            const converterCode = "definetly not a correct javascript code";

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/save",
                expect.stringContaining(`"error":"${converterName} contains invalid code`),
                {},
            );
            expect(writeFileSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), converterCode, "utf8");
        });

        it("returns error on invalid removal", async () => {
            const converterName = "foo2.js";

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/remove",
                message: {name: converterName},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/remove",
                expect.stringContaining("doesn't exists"),
                {},
            );
            expect(rmSyncSpy).not.toHaveBeenCalledWith(expect.stringContaining(converterName), {force: true});
        });

        it("returns error on invalid definition", async () => {
            const converterName = "foo3.js";
            const converterCode = getFileCode("cjs", "mock-external-converter.js");

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            const errorMsg = "Invalid definition";

            zhcAddExternalDefinitionSpy.mockImplementationOnce(() => {
                throw new Error(errorMsg);
            });

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith("zigbee2mqtt/bridge/response/converter/save", expect.stringContaining(errorMsg), {});
            expect(writeFileSyncSpy).toHaveBeenCalledWith(expect.stringContaining(converterName), converterCode, "utf8");
        });

        it("returns error on failed removal", async () => {
            const converterName = "foo4.js";
            const converterCode = getFileCode("cjs", "mock-external-converter.js");

            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            //-- SAVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: converterName, code: converterCode},
            });

            const errorMsg = "Failed to remove definition";

            zhcRemoveExternalDefinitionsSpy.mockImplementationOnce(() => {
                throw new Error(errorMsg);
            });

            //-- REMOVE
            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/remove",
                message: {name: converterName},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/remove",
                stringify({data: {}, status: "error", error: errorMsg}),
                {},
            );
            expect(rmSyncSpy).not.toHaveBeenCalledWith(expect.stringContaining(converterName), {force: true});
        });

        it("handles invalid payloads", async () => {
            await resetExtension();
            for (const mock of mocksClear) mock.mockClear();

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/save",
                message: {name: "foo5.js", transaction: 1 /* code */},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/save",
                stringify({data: {}, status: "error", error: "Invalid payload", transaction: 1}),
                {},
            );

            await (controller.getExtension("ExternalConverters")! as ExternalConverters).onMQTTMessage({
                topic: "zigbee2mqtt/bridge/request/converter/remove",
                message: {namex: "foo5.js", transaction: 2},
            });

            expect(mockMQTTPublishAsync).toHaveBeenCalledWith(
                "zigbee2mqtt/bridge/response/converter/remove",
                stringify({data: {}, status: "error", error: "Invalid payload", transaction: 2}),
                {},
            );
        });
    });

    it("doesn't add extension when external JS disabled", async () => {
        settings.set(["advanced", "enable_external_js"], false);

        controller = new Controller(vi.fn(), vi.fn());

        await controller.start();
        await flushPromises();

        expect(controller.getExtension("ExternalConverters")).toBeUndefined();
    });
});