//
//  AnalyticsGeneratorTests.swift
//  
//
//  Created by Thibaut Schmitt on 06/09/2022.
//

import Foundation
import XCTest
import ToolCore

@testable import ResgenSwift

final class AnalyticsGeneratorTests: XCTestCase {
    
    private func getAnalyticsDefinition(id: String, path: String, name: String, type: AnalyticsDefinition.TagType, tags: [String]) -> AnalyticsDefinition {
        let definition = AnalyticsDefinition(id: id, name: name, type: type)
        definition.tags = tags
        return definition
    }
    
    func testGeneratedExtensionContentFirebase() {
        // Given
        let sectionOne = AnalyticsCategory(id: "section_one")
        sectionOne.definitions = [
            getAnalyticsDefinition(id: "s1_def_one", path: "s1_def_one/", name: "s1 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios", "iosonly"]),
            getAnalyticsDefinition(id: "s1_def_two", path: "s1_def_two/", name: "s1 def two", type: AnalyticsDefinition.TagType.event, tags: ["ios", "iosonly"]),
        ]
        
        let sectionTwo = AnalyticsCategory(id: "section_two")
        sectionTwo.definitions = [
            getAnalyticsDefinition(id: "s2_def_one", path: "s2_def_one/", name: "s2 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios","iosonly"]),
            getAnalyticsDefinition(id: "s2_def_two", path: "s2_def_two/", name: "s2 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        let sectionThree = AnalyticsCategory(id: "section_three")
        sectionThree.definitions = [
            getAnalyticsDefinition(id: "s3_def_one", path: "s3_def_one/", name: "s3 def one", type: AnalyticsDefinition.TagType.screen, tags: ["droid","droidonly"]),
            getAnalyticsDefinition(id: "s3_def_two", path: "s3_def_two/", name: "s3 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        // When
        AnalyticsGenerator.targets = [Analytics.TargetType.firebase]
        let extensionContent = AnalyticsGenerator.getExtensionContent(sections: [sectionOne, sectionTwo, sectionThree],
                                                                 tags: ["ios", "iosonly"],
                                                                 staticVar: false,
                                                                 extensionName: "GenAnalytics")
        // Expect Analytics
        let expect = """
        // Generated by ResgenSwift.Analytics 1.2

        import UIKit
        import Firebase

        // MARK: - Protocol

        protocol AnalyticsManagerProtocol {
            func logScreen(name: String, path: String)
            func logEvent(name: String)
        }

        // MARK: - Firebase

        class FirebaseAnalyticsManager: AnalyticsManagerProtocol {
            func logScreen(name: String, path: String) {
                Analytics.logEvent(AnalyticsEventScreenView, parameters: [AnalyticsParameterScreenName: name])
            }

            func logEvent(name: String) {
                var parameters = [
                    AnalyticsParameterValue: name
                ]
                
                Analytics.logEvent(AnalyticsEventSelectContent, parameters: parameters)
            }
        }

        // MARK: - Manager

        class AnalyticsManager {
            static var shared = AnalyticsManager()
            
            // MARK: - Properties

            var managers: [AnalyticsManagerProtocol] = []

            private var isEnabled: Bool = true

            // MARK: - Methods

            func setAnalyticsEnabled(_ enable: Bool) { isEnabled = enable }

            func configure() {
                managers.append(FirebaseAnalyticsManager())
            }
                
            private func logScreen(name: String, path: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logScreen(name: name, path: path)
                }
            }
            
            private func logEvent(name: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logEvent(name: name)
                }
            }

            // MARK: - section_one

            func logScreenS1DefOne() {
                logScreen(name: "s1 def one", path: "s1_def_one/")
            }

            func logEventS1DefTwo() {
                logEvent(name: "s1 def two")
            }
        
            // MARK: - section_two

            func logScreenS2DefOne() {
                logScreen(name: "s2 def one", path: "s2_def_one/")
            }
        }
        
        """
        
        if extensionContent != expect {
            print(prettyFirstDifferenceBetweenStrings(s1: extensionContent, s2: expect))
        }
        XCTAssertEqual(extensionContent.adaptForXCTest(), expect.adaptForXCTest())
    }
    
    func testGeneratedExtensionContentMatomo() {
        // Given
        let sectionOne = AnalyticsCategory(id: "section_one")
        sectionOne.definitions = [
            getAnalyticsDefinition(id: "s1_def_one", path: "s1_def_one/", name: "s1 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios", "iosonly"]),
            getAnalyticsDefinition(id: "s1_def_two", path: "s1_def_two/", name: "s1 def two", type: AnalyticsDefinition.TagType.event, tags: ["ios", "iosonly"]),
        ]
        
        let sectionTwo = AnalyticsCategory(id: "section_two")
        sectionTwo.definitions = [
            getAnalyticsDefinition(id: "s2_def_one", path: "s2_def_one/", name: "s2 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios","iosonly"]),
            getAnalyticsDefinition(id: "s2_def_two", path: "s2_def_two/", name: "s2 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        let sectionThree = AnalyticsCategory(id: "section_three")
        sectionThree.definitions = [
            getAnalyticsDefinition(id: "s3_def_one", path: "s3_def_one/", name: "s3 def one", type: AnalyticsDefinition.TagType.screen, tags: ["droid","droidonly"]),
            getAnalyticsDefinition(id: "s3_def_two", path: "s3_def_two/", name: "s3 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        // When
        AnalyticsGenerator.targets = [Analytics.TargetType.matomo]
        let extensionContent = AnalyticsGenerator.getExtensionContent(sections: [sectionOne, sectionTwo, sectionThree],
                                                                 tags: ["ios", "iosonly"],
                                                                 staticVar: false,
                                                                 extensionName: "GenAnalytics")
        // Expect Analytics
        let expect = """
        // Generated by ResgenSwift.Analytics 1.2

        import UIKit
        import MatomoTracker

        // MARK: - Protocol

        protocol AnalyticsManagerProtocol {
            func logScreen(name: String, path: String)
            func logEvent(name: String)
        }

        // MARK: - Matomo

        class MatomoAnalyticsManager: AnalyticsManagerProtocol {
            
            // MARK: - Properties

            private var tracker: MatomoTracker

            // MARK: - Init

            init(siteId: String, url: String) {
                debugPrint("[Matomo service] Server URL: \\(url)")
                debugPrint("[Matomo service] Site ID: \\(siteId)")
                tracker = MatomoTracker(siteId: siteId, baseURL: URL(string: url)!)
                
                #if DEBUG
                    tracker.dispatchInterval = 5
                #endif
                
                #if DEBUG
                    tracker.logger = DefaultLogger(minLevel: .verbose)
                #endif

                debugPrint("[Matomo service] Configured with content base: \\(tracker.contentBase?.absoluteString ?? "-")")
                debugPrint("[Matomo service] Opt out: \\(tracker.isOptedOut)")
            }
            
            // MARK: - Methods

            func logScreen(name: String, path: String) {
                guard !tracker.isOptedOut else { return }
                guard let trackerUrl = tracker.contentBase?.absoluteString else { return }
                let urlString = URL(string: "\\(trackerUrl)" + "/" + "\\(path)" + "iOS")
                tracker.track(
                    view: [name],
                    url: urlString
                )
            }

            func logEvent(name: String) {
                guard !tracker.isOptedOut else { return }
                tracker.track(
                    eventWithCategory: "category",
                    action: "action",
                    name: name,
                    number: nil,
                    url: nil
                )
            }
        }

        // MARK: - Manager

        class AnalyticsManager {
            static var shared = AnalyticsManager()
            
            // MARK: - Properties

            var managers: [AnalyticsManagerProtocol] = []

            private var isEnabled: Bool = true

            // MARK: - Methods

            func setAnalyticsEnabled(_ enable: Bool) { isEnabled = enable }

            func configure(siteId: String, url: String) {
                managers.append(MatomoAnalyticsManager(siteId: siteId, url: url))
            }
                
            private func logScreen(name: String, path: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logScreen(name: name, path: path)
                }
            }
            
            private func logEvent(name: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logEvent(name: name)
                }
            }

            // MARK: - section_one

            func logScreenS1DefOne() {
                logScreen(name: "s1 def one", path: "s1_def_one/")
            }

            func logEventS1DefTwo() {
                logEvent(name: "s1 def two")
            }
        
            // MARK: - section_two

            func logScreenS2DefOne() {
                logScreen(name: "s2 def one", path: "s2_def_one/")
            }
        }
        
        """
        
        if extensionContent != expect {
            print(prettyFirstDifferenceBetweenStrings(s1: extensionContent, s2: expect))
        }
        XCTAssertEqual(extensionContent.adaptForXCTest(), expect.adaptForXCTest())
    }
    
    func testGeneratedExtensionContentMatomoAndFirebase() {
        // Given
        let sectionOne = AnalyticsCategory(id: "section_one")
        sectionOne.definitions = [
            getAnalyticsDefinition(id: "s1_def_one", path: "s1_def_one/", name: "s1 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios", "iosonly"]),
            getAnalyticsDefinition(id: "s1_def_two", path: "s1_def_two/", name: "s1 def two", type: AnalyticsDefinition.TagType.event, tags: ["ios", "iosonly"]),
        ]
        
        let sectionTwo = AnalyticsCategory(id: "section_two")
        sectionTwo.definitions = [
            getAnalyticsDefinition(id: "s2_def_one", path: "s2_def_one/", name: "s2 def one", type: AnalyticsDefinition.TagType.screen, tags: ["ios","iosonly"]),
            getAnalyticsDefinition(id: "s2_def_two", path: "s2_def_two/", name: "s2 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        let sectionThree = AnalyticsCategory(id: "section_three")
        sectionThree.definitions = [
            getAnalyticsDefinition(id: "s3_def_one", path: "s3_def_one/", name: "s3 def one", type: AnalyticsDefinition.TagType.screen, tags: ["droid","droidonly"]),
            getAnalyticsDefinition(id: "s3_def_two", path: "s3_def_two/", name: "s3 def two", type: AnalyticsDefinition.TagType.event, tags: ["droid","droidonly"]),
        ]
        
        // When
        AnalyticsGenerator.targets = [Analytics.TargetType.matomo, Analytics.TargetType.firebase]
        let extensionContent = AnalyticsGenerator.getExtensionContent(sections: [sectionOne, sectionTwo, sectionThree],
                                                                 tags: ["ios", "iosonly"],
                                                                 staticVar: false,
                                                                 extensionName: "GenAnalytics")
        // Expect Analytics
        let expect = """
        // Generated by ResgenSwift.Analytics 1.2

        import UIKit
        import MatomoTracker
        import Firebase

        // MARK: - Protocol

        protocol AnalyticsManagerProtocol {
            func logScreen(name: String, path: String)
            func logEvent(name: String)
        }

        // MARK: - Matomo

        class MatomoAnalyticsManager: AnalyticsManagerProtocol {
            
            // MARK: - Properties

            private var tracker: MatomoTracker

            // MARK: - Init

            init(siteId: String, url: String) {
                debugPrint("[Matomo service] Server URL: \\(url)")
                debugPrint("[Matomo service] Site ID: \\(siteId)")
                tracker = MatomoTracker(siteId: siteId, baseURL: URL(string: url)!)
                
                #if DEBUG
                    tracker.dispatchInterval = 5
                #endif
                
                #if DEBUG
                    tracker.logger = DefaultLogger(minLevel: .verbose)
                #endif

                debugPrint("[Matomo service] Configured with content base: \\(tracker.contentBase?.absoluteString ?? "-")")
                debugPrint("[Matomo service] Opt out: \\(tracker.isOptedOut)")
            }
            
            // MARK: - Methods

            func logScreen(name: String, path: String) {
                guard !tracker.isOptedOut else { return }
                guard let trackerUrl = tracker.contentBase?.absoluteString else { return }
                let urlString = URL(string: "\\(trackerUrl)" + "/" + "\\(path)" + "iOS")
                tracker.track(
                    view: [name],
                    url: urlString
                )
            }

            func logEvent(name: String) {
                guard !tracker.isOptedOut else { return }
                tracker.track(
                    eventWithCategory: "category",
                    action: "action",
                    name: name,
                    number: nil,
                    url: nil
                )
            }
        }
        
        // MARK: - Firebase

        class FirebaseAnalyticsManager: AnalyticsManagerProtocol {
            func logScreen(name: String, path: String) {
                Analytics.logEvent(AnalyticsEventScreenView, parameters: [AnalyticsParameterScreenName: name])
            }

            func logEvent(name: String) {
                var parameters = [
                    AnalyticsParameterValue: name
                ]
                
                Analytics.logEvent(AnalyticsEventSelectContent, parameters: parameters)
            }
        }

        // MARK: - Manager

        class AnalyticsManager {
            static var shared = AnalyticsManager()
            
            // MARK: - Properties

            var managers: [AnalyticsManagerProtocol] = []

            private var isEnabled: Bool = true

            // MARK: - Methods

            func setAnalyticsEnabled(_ enable: Bool) { isEnabled = enable }

            func configure(siteId: String, url: String) {
                managers.append(MatomoAnalyticsManager(siteId: siteId, url: url))
                managers.append(FirebaseAnalyticsManager())
            }
                
            private func logScreen(name: String, path: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logScreen(name: name, path: path)
                }
            }
            
            private func logEvent(name: String) {
                guard isEnabled else { return }
                managers.forEach { manager in
                    manager.logEvent(name: name)
                }
            }

            // MARK: - section_one

            func logScreenS1DefOne() {
                logScreen(name: "s1 def one", path: "s1_def_one/")
            }

            func logEventS1DefTwo() {
                logEvent(name: "s1 def two")
            }
        
            // MARK: - section_two

            func logScreenS2DefOne() {
                logScreen(name: "s2 def one", path: "s2_def_one/")
            }
        }
        
        """
        
        if extensionContent != expect {
            print(prettyFirstDifferenceBetweenStrings(s1: extensionContent, s2: expect))
        }
        XCTAssertEqual(extensionContent.adaptForXCTest(), expect.adaptForXCTest())
    }
}