import { db } from "../../src/databases/databases";
import { getHash } from "../../src/utils/getHash";
import { IDatabase } from "../../src/databases/IDatabase";
import assert from "assert";
import { client } from "../utils/httpClient";

describe("segmentShift", function () {
    // functions
    async function dbSponsorTimesAdd(db: IDatabase, videoID: string, startTime: number, endTime: number, UUID: string, category: string) {
        const votes = 0,
            userID = 0,
            timeSubmitted = 0,
            views = 0,
            shadowHidden = 0,
            hashedVideoID = `hash_${UUID}`;
        await db.prepare("run", `INSERT INTO
            "sponsorTimes" ("videoID", "startTime", "endTime", "votes", "UUID",
            "userID", "timeSubmitted", "views", "category", "shadowHidden", "hashedVideoID")
        VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
        [videoID, startTime, endTime, votes, UUID, userID, timeSubmitted, views, category, shadowHidden, hashedVideoID]);
    }

    async function dbSponsorTimesSetByUUID(db: IDatabase, UUID: string, startTime: number, endTime: number) {
        await db.prepare("run", `UPDATE "sponsorTimes" SET "startTime" = ?, "endTime" = ? WHERE "UUID" = ?`, [startTime, endTime, UUID]);
    }

    async function dbSponsorTimesCompareExpect(db: IDatabase, expect: any): Promise<void> {
        for (let i = 0, len = expect.length; i < len; i++) {
            const expectSeg = expect[i];
            const seg = await db.prepare("get", `SELECT "startTime", "endTime" FROM "sponsorTimes" WHERE "UUID" = ?`, [expectSeg.UUID]);
            if ("removed" in expect) {
                assert.ok(expect.removed);
                assert.strictEqual(seg.votes, -2);
                assert.deepStrictEqual(seg, expectSeg);
                assert.strictEqual(seg.startTime, expectSeg.startTime);
                assert.strictEqual(seg.endTime, expectSeg.endTime);
            }
        }
    }
    // constants
    const privateVipUserID = "VIPUser-segmentShift";
    const vipUserID = getHash(privateVipUserID);
    const endpoint = "/api/segmentShift";
    const postSegmentShift = (data: Record<string, any>) => client({
        method: "POST",
        url: endpoint,
        data,
    });

    before(async function () {
        // startTime and endTime get set in beforeEach for consistency
        await dbSponsorTimesAdd(db, "vsegshift01", 0, 0, "vsegshifttest01uuid01", "intro");
        await dbSponsorTimesAdd(db, "vsegshift01", 0, 0, "vsegshifttest01uuid02", "sponsor");
        await dbSponsorTimesAdd(db, "vsegshift01", 0, 0, "vsegshifttest01uuid03", "interaction");
        await dbSponsorTimesAdd(db, "vsegshift01", 0, 0, "vsegshifttest01uuid04", "outro");
        await db.prepare("run", `INSERT INTO "vipUsers" ("userID") VALUES (?)`, [vipUserID]);
    });

    beforeEach(async function () {
        // resetting startTime and endTime to reuse them
        await dbSponsorTimesSetByUUID(db, "vsegshifttest01uuid01", 0, 10);
        await dbSponsorTimesSetByUUID(db, "vsegshifttest01uuid02", 60, 90);
        await dbSponsorTimesSetByUUID(db, "vsegshifttest01uuid03", 40, 45);
        await dbSponsorTimesSetByUUID(db, "vsegshifttest01uuid04", 120, 140);
    });

    it("Reject non VIP user", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: "segshift_randomuser001",
            startTime: 20,
            endTime: 30,
        })
            .then(res => {
                assert.strictEqual(res.status, 403);
                done();
            })
            .catch(err => done(err));
    });

    it("Shift is outside segments", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: privateVipUserID,
            startTime: 20,
            endTime: 30,
        })
            .then(async res => {
                assert.strictEqual(res.status, 200);
                const expect = [{
                    UUID: "vsegshifttest01uuid01",
                    startTime: 0,
                    endTime: 10,
                }, {
                    UUID: "vsegshifttest01uuid02",
                    startTime: 50,
                    endTime: 80,
                }, {
                    UUID: "vsegshifttest01uuid03",
                    startTime: 30,
                    endTime: 35,
                }, {
                    UUID: "vsegshifttest01uuid04",
                    startTime: 110,
                    endTime: 130,
                }];
                done(await dbSponsorTimesCompareExpect(db, expect));
            })
            .catch(err => done(err));
    });

    it("Shift is inside segment", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: privateVipUserID,
            startTime: 65,
            endTime: 75,
        })
            .then(async res => {
                assert.strictEqual(res.status, 200);
                const expect = [{
                    UUID: "vsegshifttest01uuid01",
                    startTime: 0,
                    endTime: 10,
                }, {
                    UUID: "vsegshifttest01uuid02",
                    startTime: 60,
                    endTime: 80,
                }, {
                    UUID: "vsegshifttest01uuid03",
                    startTime: 40,
                    endTime: 45,
                }, {
                    UUID: "vsegshifttest01uuid04",
                    startTime: 110,
                    endTime: 130,
                }];
                done(await dbSponsorTimesCompareExpect(db, expect));
            })
            .catch(err => done(err));
    });

    it("Shift is overlaping startTime of segment", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: privateVipUserID,
            startTime: 32,
            endTime: 42,
        })
            .then(async res => {
                assert.strictEqual(res.status, 200);
                const expect = [{
                    UUID: "vsegshifttest01uuid01",
                    startTime: 0,
                    endTime: 10,
                }, {
                    UUID: "vsegshifttest01uuid02",
                    startTime: 50,
                    endTime: 80,
                }, {
                    UUID: "vsegshifttest01uuid03",
                    startTime: 32,
                    endTime: 35,
                }, {
                    UUID: "vsegshifttest01uuid04",
                    startTime: 110,
                    endTime: 130,
                }];
                done(await dbSponsorTimesCompareExpect(db, expect));
            })
            .catch(err => done(err));
    });

    it("Shift is overlaping endTime of segment", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: privateVipUserID,
            startTime: 85,
            endTime: 95,
        })
            .then(async res => {
                assert.strictEqual(res.status, 200);
                const expect = [{
                    UUID: "vsegshifttest01uuid01",
                    startTime: 0,
                    endTime: 10,
                }, {
                    UUID: "vsegshifttest01uuid02",
                    startTime: 60,
                    endTime: 85,
                }, {
                    UUID: "vsegshifttest01uuid03",
                    startTime: 40,
                    endTime: 45,
                }, {
                    UUID: "vsegshifttest01uuid04",
                    startTime: 110,
                    endTime: 130,
                }];
                done(await dbSponsorTimesCompareExpect(db, expect));
            })
            .catch(err => done(err));
    });

    it("Shift is overlaping segment", (done) => {
        postSegmentShift({
            videoID: "vsegshift01",
            userID: privateVipUserID,
            startTime: 35,
            endTime: 55,
        })
            .then(async res => {
                assert.strictEqual(res.status, 200);
                const expect = [{
                    UUID: "vsegshifttest01uuid01",
                    startTime: 0,
                    endTime: 10,
                }, {
                    UUID: "vsegshifttest01uuid02",
                    startTime: 40,
                    endTime: 70,
                }, {
                    UUID: "vsegshifttest01uuid03",
                    startTime: 40,
                    endTime: 45,
                    removed: true,
                }, {
                    UUID: "vsegshifttest01uuid04",
                    startTime: 100,
                    endTime: 120,
                }];
                done(await dbSponsorTimesCompareExpect(db, expect));
            })
            .catch(err => done(err));
    });
});