import {setupApphierarchy, 
    basicAppHierarchyCreator_WithFields, getNewFieldAndAdd} from "./specHelpers";
import {joinKey} from "../src/common";
import {isFunction, isArray} from "lodash";

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

    it("'referenceExists()' should return true when the reference is in the index", async () => {

        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);

        const customer = recordApi.getNew(
            appHierarchy.customerRecord.collectionNodeKey(),
            "customer");
        customer.isalive = true;
        await recordApi.save(customer);

        const invoiceCollectionKey = joinKey(customer.key, "invoices");
        const invoice = recordApi.getNew(invoiceCollectionKey, "invoice");
        
        const context = await recordApi.getContext(invoice.key);

        expect(isFunction(context.referenceExists)).toBeTruthy();
        const result = await context.referenceExists("customer", customer.key);
        expect(result).toBe(true);
    });

    it("'referenceExists()' should return false when the reference is not in the index", async () => {

        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);

        const customer = recordApi.getNew(
            appHierarchy.customerRecord.collectionNodeKey(),
            "customer");
        customer.isalive = true;
        await recordApi.save(customer);

        const invoiceCollectionKey = joinKey(customer.key, "invoices");
        const invoice = recordApi.getNew(invoiceCollectionKey, "invoice");
        
        const context = await recordApi.getContext(invoice.key);

        const result = await context.referenceExists("customer", "not a key");
        expect(result).toBe(false);
    });

    it("referenceOptions() should return list of indexed {key, value}", async () => {

        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);

        const customer = recordApi.getNew(
            appHierarchy.customerRecord.collectionNodeKey(),
            "customer");
        customer.surname = "Leedog";
        customer.isalive = true;
        await recordApi.save(customer);

        const invoiceCollectionKey = joinKey(customer.key, "invoices");
        const invoice = recordApi.getNew(invoiceCollectionKey, "invoice");
        
        const context = await recordApi.getContext(invoice.key);

        expect(isFunction(context.referenceOptions)).toBeTruthy();
        const result = await context.referenceOptions("customer");
        expect(isArray(result)).toBeTruthy();
        expect(result[0].key).toBe(customer.key);
        expect(result[0].value).toBe(customer.surname);

    });

    it("referenceOptions() should return an empty list when no records are in the index", async () => {

        const {recordApi, appHierarchy} = await setupApphierarchy(basicAppHierarchyCreator_WithFields);

        const customer = recordApi.getNew(
            appHierarchy.customerRecord.collectionNodeKey(),
            "customer");
        customer.surname = "Leedog";
        customer.isalive = false;
        await recordApi.save(customer);

        const invoiceCollectionKey = joinKey(customer.key, "invoices");
        const invoice = recordApi.getNew(invoiceCollectionKey, "invoice");
        
        const context = await recordApi.getContext(invoice.key);

        expect(isFunction(context.referenceOptions)).toBeTruthy();
        const result = await context.referenceOptions("customer");
        expect(isArray(result)).toBeTruthy();
        expect(result.length).toBe(0);
    });

});