//
//  CachedInsulinDeliveryObjectTests.swift
//  LoopKitTests
//
//  Copyright © 2018 LoopKit Authors. All rights reserved.
//

import XCTest
@testable import LoopKit

class CachedInsulinDeliveryObjectTests: PersistenceControllerTestCase {

    func testUUIDUniqueConstraintPreSave() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.uuid = uuid
            object1.syncIdentifier = "object1"

            let object2 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.uuid = uuid
            object2.syncIdentifier = "object2"

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedInsulinDeliveryObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testUUIDUniqueConstraintPostSave() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.uuid = uuid

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.uuid = uuid

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedInsulinDeliveryObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testSyncIdentifierUniqueConstraint() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedInsulinDeliveryObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testSaveWithDefaultValues() {
        cacheStore.managedObjectContext.performAndWait {
            let object1 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedInsulinDeliveryObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedInsulinDeliveryObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(2, objects.count)
        }
    }
}


extension CachedInsulinDeliveryObject {
    fileprivate func setDefaultValues() {
        uuid = UUID()
        startDate = Date()
        endDate = Date()
        reason = .basal
        hasLoopKitOrigin = true
        value = 3.5
        syncIdentifier = uuid!.uuidString
        provenanceIdentifier = "CachedInsulinDeliveryObjectTests"
    }
}