import {setupApphierarchy, basicAppHierarchyCreator_WithFields, 
    stubEventHandler} from "./specHelpers";
import {events, isNonEmptyString} from "../src/common";
import {permission} from "../src/authApi/permissions";
import { getRecordInfo } from "../src/recordApi/recordInfo";

describe('recordApi > save then load', () => {
    
    it('should save all field values on create new record', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.surname = "Ledog";
        record.isalive = true;
        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        expect(saved.surname).toBe(record.surname);
        expect(saved.isalive).toBe(record.isalive);
        expect(saved.age).toBe(record.age);
        expect(saved.createddate).toEqual(record.createddate);

    });

    it('should create values for fields when undefined', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        expect(saved.surname).toBe(null);
        expect(saved.isalive).toBe(true);
        expect(saved.age).toBe(record.age);
        expect(saved.createddate).toEqual(record.createddate);

    });

    it('loaded record isNew() always return false', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        expect(saved.isNew).toBeDefined();
        expect(saved.isNew).toBe(false);
    });

    it('loaded record id() and key() should work', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        expect(saved.id).toBeDefined();
        expect(saved.id).toBe(record.id);

        expect(saved.key).toBeDefined();
        expect(saved.key).toBe(saved.key);
    });

    
    it('loaded record type() should be a function', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        expect(isNonEmptyString(saved.type)).toBeTruthy()
        expect(saved.type).toBe("customer");
    });

    it('update existing should update field', async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");

        record.surname = "Ledog";
        record.isalive = true;
        record.age = 9;
        record.createddate = new Date();

        await recordApi.save(record);

        const saved = await recordApi.load(record.key);

        saved.surname = "Zeedog";
        await recordApi.save(saved);
        const savedAgain = await recordApi.load(saved.key);
        expect(savedAgain.surname).toBe(saved.surname); 
    });

    it("should maintain referential integrity", async () => {
        const {recordApi} = 
            await setupApphierarchy(basicAppHierarchyCreator_WithFields);

        const referredByCustomer = recordApi.getNew("/customers", "customer");
        referredByCustomer.surname = "Ledog";
        referredByCustomer.age = 9;
        referredByCustomer.isalive = true,
        referredByCustomer.createdDate = new Date();
        const savedReferredBy = await recordApi.save(referredByCustomer);

        const referredCustomer = recordApi.getNew("/customers", "customer");
        referredCustomer.surname = "Zeecat";
        referredCustomer.age = 9;
        referredCustomer.isalive = true,
        referredCustomer.createdDate = new Date();
        referredCustomer.referredBy = referredByCustomer;
        await recordApi.save(referredCustomer);

        savedReferredBy.surname = "Zeedog";
        await recordApi.save(savedReferredBy);

        const loadedReferredTo = await recordApi.load(referredCustomer.key);
        expect(loadedReferredTo.referredBy.surname).toBe("Zeedog");
    });
});

describe("save", () => {

    it("IsNew() should return false after save", async () => {
        const {recordApi} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        const savedRecord = await recordApi.save(record);
        expect(savedRecord.isNew).toBe(false);
    });

    it("should publish onbegin and oncomplete events", async () => {
        const {recordApi, subscribe} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const handler = stubEventHandler();
        subscribe(events.recordApi.save.onBegin, handler.handle);
        subscribe(events.recordApi.save.onComplete, handler.handle);

        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        await recordApi.save(record);

        const onBegin = handler.getEvents(events.recordApi.save.onBegin);
        const onComplete = handler.getEvents(events.recordApi.save.onComplete);
        expect(onBegin.length).toBe(1);
        expect(onComplete.length).toBe(1);
        expect(onBegin[0].context.record).toBeDefined();
        expect(onBegin[0].context.record.key).toBe(record.key);
        expect(onComplete[0].context.record).toBeDefined();
        expect(onComplete[0].context.record.key).toBe(record.key);

    });

    it("should publish create on create and update on update", async () => {
        const {recordApi, subscribe} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const handler = stubEventHandler();
        subscribe(events.recordApi.save.onRecordCreated, handler.handle);
        subscribe(events.recordApi.save.onRecordUpdated, handler.handle);

        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        const savedRecord =await recordApi.save(record);
        const onCreate = handler.getEvents(events.recordApi.save.onRecordCreated);
        expect(onCreate.length).toBe(1);
        expect(onCreate[0].context.record).toBeDefined();
        expect(onCreate[0].context.record.key).toBe(record.key);

        savedRecord.surname = "Zeecat";
        await recordApi.save(savedRecord);

        const onUpdate = handler.getEvents(events.recordApi.save.onRecordUpdated);
        expect(onUpdate.length).toBe(1);
        expect(onUpdate[0].context.old).toBeDefined();
        expect(onUpdate[0].context.old.key).toBe(record.key);
        expect(onUpdate[0].context.old.surname).toBe("Ledog");
        expect(onUpdate[0].context.new).toBeDefined();
        expect(onUpdate[0].context.new.key).toBe(record.key);
        expect(onUpdate[0].context.new.surname).toBe("Zeecat");

    });

    it("should create folder and index for subcollection", async () => {
        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        await recordApi.save(record);
        const recordDir = getRecordInfo(appHierarchy.root, record.key).dir;
        expect(await recordApi._storeHandle.exists(`${recordDir}/invoice_index/index.csv`)).toBeTruthy()
        expect(await recordApi._storeHandle.exists(`${recordDir}/invoice_index`)).toBeTruthy()
        expect(await recordApi._storeHandle.exists(`${recordDir}/invoices`)).toBeTruthy()
    });

    it("should create index folder and shardMap for sharded reverse reference index", async () => {
        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        await recordApi.save(record);
        const recordDir = getRecordInfo(appHierarchy.root, record.key).dir;
        expect(await recordApi._storeHandle.exists(`${recordDir}/referredToCustomers/shardMap.json`)).toBeTruthy();
        expect(await recordApi._storeHandle.exists(`${recordDir}/referredToCustomers`)).toBeTruthy();
    });

    it("should create folder for record", async () => {
        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        record.surname = "Ledog";

        await recordApi.save(record);
        const recordDir = getRecordInfo(appHierarchy.root, record.key).dir;

        expect(await recordApi._storeHandle.exists(`${recordDir}`)).toBeTruthy();
        expect(await recordApi._storeHandle.exists(`${recordDir}/record.json`)).toBeTruthy();
    });


    it("create should throw error, user user does not have permission", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        app.removePermission(permission.createRecord.get(appHierarchy.customerRecord.nodeKey()));
        expect(recordApi.save(record)).rejects.toThrow(/Unauthorized/);
    });

    it("create should not depend on having any other permissions", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        app.withOnlyThisPermission(permission.createRecord.get(appHierarchy.customerRecord.nodeKey()));
        const record = recordApi.getNew("/customers", "customer");
        await recordApi.save(record);
    });

    it("update should throw error, user user does not have permission", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        app.removePermission(permission.updateRecord.get(appHierarchy.customerRecord.nodeKey()));
        const created = await recordApi.save(record);
        expect(recordApi.save(created)).rejects.toThrow(/Unauthorized/);
    });

    it("update should not depend on having any other permissions", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        const saved = await recordApi.save(record);
        app.withOnlyThisPermission(permission.updateRecord.get(appHierarchy.customerRecord.nodeKey()));
        await recordApi.save(saved);
    });
})

describe("recordApi > load", () => {

    it("should throw error when user user does not have permission", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        const created = await recordApi.save(record);
        app.removePermission(permission.readRecord.get(appHierarchy.customerRecord.nodeKey()));
        expect(recordApi.load(created.key)).rejects.toThrow(/Unauthorized/);
    });

    it("should not depend on having any other permissions", async () => {
        const {recordApi, app, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);
        const record = recordApi.getNew("/customers", "customer");
        const saved = await recordApi.save(record);
        app.withOnlyThisPermission(permission.readRecord.get(appHierarchy.customerRecord.nodeKey()));
        await recordApi.load(saved.key);
    });

});