const R = require("ramda");
const { getDomainService, diffRecords } = require("../utils/domain-service");
const { DOMAIN_DOMAIN } = require("../utils/constants");

const getCpanel = ({
    zone,
    addZone,
    removeZone,
    redir,
    addRedir,
    removeRedir,
    addEmail,
    removeEmail,
} = {}) => ({
    zone: {
        fetch: (_) => zone(),
        add: (rec) => addZone(rec),
        remove: (rec) => removeZone(rec),
    },
    redirection: {
        fetch: (_) => redir(),
        add: (rec) => addRedir(rec),
        remove: (rec) => removeRedir(rec),
    },
    email: {
        add: (rec) => addEmail(rec),
        remove: (rec) => removeEmail(rec),
    },
});

describe("diffRecords", () => {
    it("should show added record", () => {
        const oldRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "111.1.1212.1" },
        ];
        const newRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "111.1.1212.1" },
            { name: "boo", type: "CNAME", address: "x.com" },
        ];

        const result = diffRecords(oldRecords, newRecords);
        expect(result).toEqual({
            remove: [],
            add: [{ name: "boo", type: "CNAME", address: "x.com" }],
        });
    });

    it("should show edited records", () => {
        const oldRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "111.1.1212.1" },
        ];
        const newRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "69.69.69.69" },
        ];

        const result = diffRecords(oldRecords, newRecords);
        expect(result).toEqual({
            remove: [{ name: "xa", type: "A", address: "111.1.1212.1" }],
            add: [{ name: "xa", type: "A", address: "69.69.69.69" }],
        });
    });

    it("should show added records with the same name and record type", () => {
        const oldRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "69.69.69.69" },
        ];
        const newRecords = [
            { name: "xx", type: "CNAME", address: "fck.com." },
            { name: "xa", type: "A", address: "69.69.69.69" },
            { name: "xa", type: "A", address: "69.69.4.20" },
        ];

        const result = diffRecords(oldRecords, newRecords);
        expect(result).toEqual({
            remove: [],
            add: [{ name: "xa", type: "A", address: "69.69.4.20" }],
        });
    });

    it("should diff complex changes", () => {
        const oldRecords = [
            { name: "a", type: "CNAME", address: "fck.com." },
            { name: "b", type: "A", address: "69.69.69.69" },
            { name: "111", type: "CNAME", address: "x" },
            { name: "d", type: "A", address: "69.69.4.20" },
        ];
        const newRecords = [
            { name: "111", type: "CNAME", address: "x" },
            { name: "d", type: "CNAME", address: "duck.com" },
            { name: "a", type: "CNAME", address: "og.com" },
            { name: "b", type: "A", address: "69.69.69.69" },
            { name: "b", type: "A", address: "69.69.4.20" },
            { name: "c", type: "CNAME", address: "ccc.cc" },
        ];

        const result = diffRecords(oldRecords, newRecords);
        expect(result).toEqual({
            remove: [
                { name: "a", type: "CNAME", address: "fck.com." },
                { name: "d", type: "A", address: "69.69.4.20" },
            ],
            add: [
                { name: "d", type: "CNAME", address: "duck.com" },
                { name: "a", type: "CNAME", address: "og.com" },
                { name: "b", type: "A", address: "69.69.4.20" },
                { name: "c", type: "CNAME", address: "ccc.cc" },
            ],
        });
    });
});

describe("Domain service", () => {
    const addZone = jest.fn(async () => ({}));
    const removeZone = jest.fn(async () => ({}));
    const addRedir = jest.fn(async () => ({}));
    const removeRedir = jest.fn(async () => ({}));
    const addEmail = jest.fn(async () => ({}));
    const removeEmail = jest.fn(async () => ({}));

    const mockDS = ({ zones, redirections }) =>
        getDomainService({
            cpanel: getCpanel({
                zone: async () => zones,
                redir: async () => redirections,
                addZone,
                addEmail,
                addRedir,
                removeZone,
                removeRedir,
                removeEmail,
            }),
        });

    const getRecordCalls = (recfn) =>
        recfn.mock.calls
            .map(R.head)
            .map(
                R.pick([
                    "name",
                    "type",
                    "address",
                    "redirect",
                    "domain",
                    "line",
                    "priority",
                    "exchanger",
                ]),
            );

    beforeEach(() => {
        addZone.mockClear();
        removeZone.mockClear();
        addRedir.mockClear();
        removeRedir.mockClear();
        addEmail.mockClear();
        removeEmail.mockClear();
    });

    describe("getHosts", () => {
        it("should resolve with a list of hosts", async () => {
            const zones = [
                { name: "xx", type: "CNAME", address: "fck.com." },
                { name: "xx", type: "A", address: "111.1.1212.1" },
            ];
            const redirections = [];
            const zone = async () => zones;
            const redir = async () => redirections;
            const mockDomainService = getDomainService({
                cpanel: getCpanel({ zone, redir }),
            });
            const list = await mockDomainService.getHosts();

            expect(list).toEqual([
                { name: "xx", type: "CNAME", address: "fck.com" },
                { name: "xx", type: "A", address: "111.1.1212.1" },
            ]);
        });

        it("should resolve with a redirections", async () => {
            const zones = [
                { line: "111", name: "xx", type: "CNAME", address: "fck.com." },
                { line: "112", name: "xx", type: "A", address: "111.1.1212.1" },
            ];
            const redirections = [
                { domain: "foo.booboo.xyz", destination: "https://google.com" },
                { domain: "foo1.booboo.xyz", destination: "https://duck.com" },
            ];
            const zone = async () => zones;
            const redir = async () => redirections;
            const mockDomainService = getDomainService({
                cpanel: getCpanel({ zone, redir }),
            });
            const list = await mockDomainService.getHosts();

            expect(list).toEqual([
                { id: "111", name: "xx", type: "CNAME", address: "fck.com" },
                { id: "112", name: "xx", type: "A", address: "111.1.1212.1" },
                {
                    id: `foo.${DOMAIN_DOMAIN}`,
                    name: "foo",
                    type: "URL",
                    address: "https://google.com",
                },
                {
                    id: `foo1.${DOMAIN_DOMAIN}`,
                    name: "foo1",
                    type: "URL",
                    address: "https://duck.com",
                },
            ]);
        });
    });

    describe("updateHosts", () => {
        it("should append new hosts with existing ones and set it", async () => {
            const zones = [
                { line: 1, name: "a", type: "CNAME", address: "boo" },
                { line: 2, name: "b", type: "CNAME", address: "goo" },
            ];
            const redirections = [];

            const mockDomainService = mockDS({ zones, redirections });
            await mockDomainService.updateHosts([
                { name: "a", type: "CNAME", address: "boo" },
                { name: "b", type: "CNAME", address: "goo" },
                { name: "c", type: "A", address: "12.131321.213" },
                { name: "c", type: "MX", address: "foobar.com", priority: 2 },
            ]);

            expect(addZone).toHaveBeenCalledTimes(1);
            expect(getRecordCalls(addZone)).toEqual([
                { name: "c", type: "A", address: "12.131321.213" },
            ]);

            expect(addEmail).toHaveBeenCalledTimes(1);
            expect(getRecordCalls(addEmail)).toEqual([
                { domain: "c.is-a.dev", exchanger: "foobar.com", priority: 2 },
            ]);

            expect(removeZone).toHaveBeenCalledTimes(0);
            expect(removeEmail).toHaveBeenCalledTimes(0);
        });

        it("should update matching host and set it", async () => {
            const zones = [
                { line: 1, name: "a", type: "CNAME", address: "boo" },
                { line: 2, name: "b", type: "CNAME", address: "goo" },
            ];
            const redirections = [];

            const mockDomainService = mockDS({ zones, redirections });
            await mockDomainService.updateHosts([
                { name: "a", type: "CNAME", address: "boo" },
                { name: "b", type: "CNAME", address: "googoogaga" },
            ]);

            expect(addZone).toHaveBeenCalledTimes(1);
            expect(getRecordCalls(addZone)).toEqual([
                { name: "b", type: "CNAME", address: "googoogaga" },
            ]);
            expect(removeZone).toHaveBeenCalledTimes(1);
            expect(getRecordCalls(removeZone)).toEqual([{ line: 2 }]);
        });

        it("should update matching host and set it", async () => {
            const zones = [
                { line: 1, name: "a", type: "CNAME", address: "boo" },
                { line: 2, name: "b", type: "CNAME", address: "goo" },
                { line: 3, name: "b", type: "CNAME", address: "xaa" },
            ];
            const redirections = [];

            const mockDomainService = mockDS({ zones, redirections });
            await mockDomainService.updateHosts([
                { name: "a", type: "CNAME", address: "boo" },
                { name: "b", type: "CNAME", address: "googoogaga" },
                { name: "b", type: "CNAME", address: "farboo" },
            ]);

            expect(addZone).toHaveBeenCalledTimes(2);
            expect(getRecordCalls(addZone)).toEqual([
                { name: "b", type: "CNAME", address: "googoogaga" },
                { name: "b", type: "CNAME", address: "farboo" },
            ]);
            expect(removeZone).toHaveBeenCalledTimes(2);
            expect(getRecordCalls(removeZone)).toEqual([
                { line: 3 },
                { line: 2 },
            ]);
        });

        it("should workout this complex example", async () => {
            const zones = [
                { line: 1, name: "a", type: "CNAME", address: "world" },
                { line: 2, name: "b", type: "A", address: "1" },
                { line: 3, name: "b", type: "A", address: "2" },
                { line: 4, name: "c", type: "CNAME", address: "hello.com" },
                {
                    line: 5,
                    name: "c",
                    type: "MX",
                    address: "mx1.hello.com",
                    priority: 20,
                },
                {
                    line: 6,
                    name: "c",
                    type: "MX",
                    address: "mx2.hello.com",
                    priority: 21,
                },
                {
                    line: 7,
                    name: "b",
                    type: "MX",
                    address: "foo.bar",
                    priority: 20,
                },
                { line: 101, name: "x", type: "A", address: "1" },
                { line: 99, name: "y", type: "A", address: "2" },
                { line: 100, name: "z", type: "A", address: "3" },
            ];
            const redirections = [
                {
                    domain: `b.${DOMAIN_DOMAIN}`,
                    destination: "https://foobar.com",
                },
                {
                    domain: `c.${DOMAIN_DOMAIN}`,
                    destination: "https://goobar.com",
                },
                {
                    domain: `x.${DOMAIN_DOMAIN}`,
                    destination: "https://example.com",
                },
            ];

            const mockDomainService = mockDS({ zones, redirections });
            await mockDomainService.updateHosts([
                { name: "a", type: "CNAME", address: "boo" },
                { name: "b", type: "A", address: "1" },
                { name: "b", type: "A", address: "2" },
                { name: "b", type: "A", address: "3" },
                { name: "b", type: "URL", address: "https://wowow.com" },
                { name: "c", type: "CNAME", address: "hello.com" },
                { name: "c", type: "URL", address: "https://goobar.com" },
                { name: "d", type: "CNAME", address: "helo.com" },
                { name: "d", type: "URL", address: "https://hhh.com" },
                { name: "x", type: "URL", address: "https://example69.com" },
                {
                    name: "c",
                    type: "MX",
                    address: "mx2.hello.com",
                    priority: 21,
                },
                { name: "a", type: "MX", address: "example.com", priority: 20 },
            ]);

            expect(addZone).toHaveBeenCalledTimes(3);
            expect(getRecordCalls(addZone)).toEqual([
                { name: "a", type: "CNAME", address: "boo" },
                { name: "b", type: "A", address: "3" },
                { name: "d", type: "CNAME", address: "helo.com" },
            ]);
            expect(removeZone).toHaveBeenCalledTimes(4);
            expect(getRecordCalls(removeZone)).toEqual([
                { line: 101 },
                { line: 100 },
                { line: 99 },
                { line: 1 },
            ]);

            expect(addEmail).toHaveBeenCalledTimes(1);
            expect(getRecordCalls(addEmail)).toEqual([
                {
                    domain: "a.is-a.dev",
                    exchanger: "example.com",
                    priority: 20,
                },
            ]);
            expect(removeEmail).toHaveBeenCalledTimes(2);
            expect(getRecordCalls(removeEmail)).toEqual([
                { domain: "b.is-a.dev", exchanger: "foo.bar", priority: 20 },
                {
                    domain: "c.is-a.dev",
                    exchanger: "mx1.hello.com",
                    priority: 20,
                },
            ]);

            expect(addRedir).toHaveBeenCalledTimes(3);
            expect(getRecordCalls(addRedir)).toEqual([
                {
                    domain: `b.${DOMAIN_DOMAIN}`,
                    type: "permanent",
                    redirect: "https://wowow.com",
                },
                {
                    domain: `d.${DOMAIN_DOMAIN}`,
                    type: "permanent",
                    redirect: "https://hhh.com",
                },
                {
                    domain: `x.${DOMAIN_DOMAIN}`,
                    type: "permanent",
                    redirect: "https://example69.com",
                },
            ]);
            expect(removeRedir).toHaveBeenCalledTimes(2);
            expect(getRecordCalls(removeRedir)).toEqual([
                { domain: `b.${DOMAIN_DOMAIN}` },
                { domain: `x.${DOMAIN_DOMAIN}` },
            ]);
        });
    });
});