### Swift ECWeekView Integration Example

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

This Swift code demonstrates the full integration of ECWeekView. It covers view initialization, setting up the data source for events, implementing delegate methods for user interactions, and applying custom styling. Dependencies include UIKit, ECWeekView, and SwiftDate.

```swift
import UIKit
import ECWeekView
import SwiftDate

class WeekViewController: UIViewController {
    private var weekView: ECWeekView!
    private var events: [String: [ECWeekViewEvent]] = [:] // Cache events by date

    override func viewDidLoad() {
        super.viewDidLoad()
        setupWeekView()
        loadSampleEvents()
    }

    private func setupWeekView() {
        weekView = ECWeekView(visibleDays: 5, date: DateInRegion())
        weekView.frame = view.bounds
        weekView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        weekView.startHour = 8
        weekView.endHour = 18
        weekView.colorTheme = .light
        weekView.nowLineEnabled = true
        weekView.nowLineColor = .systemRed
        weekView.dataSource = self
        weekView.delegate = self
        weekView.styler = CustomWeekViewStyler()

        view.addSubview(weekView)
    }

    private func loadSampleEvents() {
        // Populate event cache with sample data
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"

        for dayOffset in -7...7 {
            let date = DateInRegion() + dayOffset.days
            let dateKey = dateFormatter.string(from: date.date)

            var dayEvents: [ECWeekViewEvent] = []

            // Morning meeting
            if let start = date.dateBySet(hour: 9, min: 0, secs: 0),
               let end = date.dateBySet(hour: 10, min: 0, secs: 0) {
                dayEvents.append(ECWeekViewEvent(
                    title: "Team Standup",
                    subtitle: "Daily sync",
                    start: start,
                    end: end
                ))
            }

            // Lunch
            if let start = date.dateBySet(hour: 12, min: 0, secs: 0),
               let end = date.dateBySet(hour: 13, min: 0, secs: 0) {
                dayEvents.append(ECWeekViewEvent(
                    title: "Lunch Break",
                    subtitle: "",
                    start: start,
                    end: end
                ))
            }

            // Afternoon task
            if dayOffset % 2 == 0,
               let start = date.dateBySet(hour: 14, min: 30, secs: 0),
               let end = date.dateBySet(hour: 16, min: 0, secs: 0) {
                dayEvents.append(ECWeekViewEvent(
                    title: "Development Work",
                    subtitle: "Feature implementation",
                    start: start,
                    end: end
                ))
            }

            events[dateKey] = dayEvents
        }
    }
}

extension WeekViewController: ECWeekViewDataSource {
    func weekViewGenerateEvents(
        _ weekView: ECWeekView,
        date: DateInRegion,
        eventCompletion: @escaping ([ECWeekViewEvent]?) -> Void
    ) -> [ECWeekViewEvent]? {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"
        let dateKey = dateFormatter.string(from: date.date)

        // Return cached events immediately
        let cachedEvents = events[dateKey] ?? []

        // Simulate async loading
        DispatchQueue.global(qos: .background).async {
            Thread.sleep(forTimeInterval: 0.3)
            eventCompletion(cachedEvents)
        }

        return cachedEvents
    }
}

extension WeekViewController: ECWeekViewDelegate {
    func weekViewDidClickOnEvent(
        _ weekView: ECWeekView,
        event: ECWeekViewEvent,
        view: UIView
    ) {
        showEventDetail(event)
    }

    func weekViewDidClickOnFreeTime(
        _ weekView: ECWeekView,
        date: DateInRegion
    ) {
        createNewEvent(at: date)
    }

    private func showEventDetail(_ event: ECWeekViewEvent) {
        let alert = UIAlertController(
            title: event.title,
            message: event.subtitle,
            preferredStyle: .alert
        )
        alert.addAction(UIAlertAction(title: "OK", style: .default))
        present(alert, animated: true)
    }

    private func createNewEvent(at date: DateInRegion) {
        print("Create event at: \(date.toString())")
    }
}

```

--------------------------------

### Swift Package Manager Installation

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

This code snippet shows how to add the ECWeekView library to your project using Swift Package Manager. Ensure you have the correct URL for the package.

```swift
.package(url: "https://github.com/EvanCooper9/swift-week-view")
```

--------------------------------

### Create ECWeekViewEvent Model Objects in Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Illustrates how to create event objects for ECWeekView using the `ECWeekViewEvent` model. This includes defining event titles, subtitles, start and end times using `SwiftDate`. The examples show creating a single event and a collection of events for a specific day. Requires ECWeekView and SwiftDate.

```swift
import ECWeekView
import SwiftDate

// Create a single event
let today = DateInRegion()
let meetingStart = today.dateBySet(hour: 14, min: 0, secs: 0)!
let meetingEnd = today.dateBySet(hour: 15, min: 30, secs: 0)!

let meeting = ECWeekViewEvent(
    title: "Team Meeting",
    subtitle: "Conference Room A",
    start: meetingStart,
    end: meetingEnd
)

// Create multiple events for a day
let lunchStart = today.dateBySet(hour: 12, min: 0, secs: 0)!
let lunchEnd = today.dateBySet(hour: 13, min: 0, secs: 0)!
let lunch = ECWeekViewEvent(
    title: "Lunch",
    subtitle: "Cafeteria",
    start: lunchStart,
    end: lunchEnd
)

let reviewStart = today.dateBySet(hour: 16, min: 0, secs: 0)!
let reviewEnd = today.dateBySet(hour: 17, min: 0, secs: 0)!
let review = ECWeekViewEvent(
    title: "Code Review",
    subtitle: "Sprint retrospective",
    start: reviewStart,
    end: reviewEnd
)

let events = [meeting, lunch, review]
```

--------------------------------

### Initialize ECWeekView Programmatically in Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Demonstrates how to programmatically create and configure an ECWeekView instance within a UIViewController. It covers setting the visible days, date range, enabling the 'now' line indicator, and assigning data source and delegate protocols. Requires ECWeekView, SwiftDate, and UIKit.

```swift
import ECWeekView
import SwiftDate
import UIKit

class CalendarViewController: UIViewController {
    private var weekView: ECWeekView!

    override func viewDidLoad() {
        super.viewDidLoad()

        // Programmatic initialization with 5 visible days
        let weekView = ECWeekView(visibleDays: 5, date: DateInRegion())
        weekView.frame = view.bounds
        weekView.autoresizingMask = [.flexibleWidth, .flexibleHeight]

        // Configure time range (9 AM to 5 PM)
        weekView.startHour = 9
        weekView.endHour = 17

        // Enable now line indicator
        weekView.nowLineEnabled = true
        weekView.nowLineColor = .red

        // Set color theme
        weekView.colorTheme = .light

        // Set data source and delegate
        weekView.dataSource = self
        weekView.delegate = self

        view.addSubview(weekView)
        self.weekView = weekView
    }
}
```

--------------------------------

### Initialize ECWeekView Programmatically in Swift

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

This code demonstrates how to programmatically create an instance of `ECWeekView`. You need to specify the frame and the number of visible days, and then set the `dataSource` property.

```swift
let weekView = ECWeekView(frame: frame, visibleDays: 5)
weekView.dataSource = self
addSubview(weekView)
```

--------------------------------

### Initialize ECWeekView via Storyboard in Swift

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

This snippet shows how to connect an `ECWeekView` instance created in a Storyboard to your code. After creating the view in the Storyboard and assigning it an outlet, set its `dataSource` property.

```swift
@IBOutlet weak var weekView: ECWeekView!
weekView.dataSource = self
```

--------------------------------

### Integrate ECWeekView with Storyboard in Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Shows how to integrate ECWeekView into an iOS project using Interface Builder. An ECWeekView instance is connected via an IBOutlet, and its properties like visible days, time range, and color theme are configured in code after the view loads. Requires ECWeekView, SwiftDate, and UIKit.

```swift
import ECWeekView
import SwiftDate
import UIKit

class StoryboardViewController: UIViewController {
    @IBOutlet weak var weekView: ECWeekView! // Connected via Storyboard

    override func viewDidLoad() {
        super.viewDidLoad()

        // Configure the storyboard-instantiated week view
        weekView.visibleDays = 7
        weekView.startHour = 8
        weekView.endHour = 18
        weekView.colorTheme = .dark
        weekView.dataSource = self
        weekView.delegate = self
    }
}
```

--------------------------------

### Implement ECWeekViewDelegate Protocol in Swift

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

Implement the `ECWeekViewDelegate` protocol to handle user interactions within the `ECWeekView`. This includes responding to taps on calendar events and free time slots by setting the `delegate` property.

```swift
// Fires when a calendar event is touched on
func weekViewDidClickOnEvent(_ weekView: ECWeekView, event: ECWeekViewEvent, view: UIView)

// Fires when a space without an event is tapped
func weekViewDidClickOnFreeTime(_ weekView: ECWeekView, date: DateInRegion)
```

--------------------------------

### Provide Events for ECWeekViewDataSource in Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Implement the ECWeekViewDataSource protocol to supply events for each day in the week view. This includes generating both immediate and asynchronous events, managing their creation, and updating the view. Dependencies include ECWeekView and SwiftDate.

```swift
import ECWeekView
import SwiftDate

extension CalendarViewController: ECWeekViewDataSource {
    func weekViewGenerateEvents(
        _ weekView: ECWeekView,
        date: DateInRegion,
        eventCompletion: @escaping ([ECWeekViewEvent]?) -> Void
    ) -> [ECWeekViewEvent]? {

        // Create events that can be returned immediately
        var immediateEvents: [ECWeekViewEvent] = []

        // Morning standup - recurring event
        if let standupStart = date.dateBySet(hour: 9, min: 0, secs: 0),
           let standupEnd = date.dateBySet(hour: 9, min: 15, secs: 0) {
            let standup = ECWeekViewEvent(
                title: "Daily Standup",
                subtitle: "Team sync",
                start: standupStart,
                end: standupEnd
            )
            immediateEvents.append(standup)
        }

        // Lunch break
        if let lunchStart = date.dateBySet(hour: 12, min: 0, secs: 0),
           let lunchEnd = date.dateBySet(hour: 13, min: 0, secs: 0) {
            let lunch = ECWeekViewEvent(
                title: "Lunch",
                subtitle: "Break time",
                start: lunchStart,
                end: lunchEnd
            )
            immediateEvents.append(lunch)
        }

        // Fetch async events (e.g., from API or database)
        DispatchQueue.global(qos: .background).async {
            var asyncEvents: [ECWeekViewEvent] = []

            // Simulate API call or database fetch
            Thread.sleep(forTimeInterval: 0.5)

            // Add fetched events
            if let meetingStart = date.dateBySet(hour: 14, min: 0, secs: 0),
               let meetingEnd = date.dateBySet(hour: 15, min: 30, secs: 0) {
                let meeting = ECWeekViewEvent(
                    title: "Client Meeting",
                    subtitle: "Project discussion",
                    start: meetingStart,
                    end: meetingEnd
                )
                asyncEvents.append(meeting)
            }

            // Combine with immediate events and update
            let allEvents = immediateEvents + asyncEvents
            eventCompletion(allEvents)
        }

        // Return immediate events first
        return immediateEvents
    }
}
```

--------------------------------

### Handle ECWeekViewDelegate Protocol Interactions in Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Implement the ECWeekViewDelegate protocol to manage user interactions with events and free time slots within the week view. This includes handling taps on events to display details or navigate to edit/delete options, and handling taps on free time to initiate event creation. Dependencies include ECWeekView, SwiftDate, and UIKit.

```swift
import ECWeekView
import SwiftDate
import UIKit

extension CalendarViewController: ECWeekViewDelegate {
    func weekViewDidClickOnEvent(
        _ weekView: ECWeekView,
        event: ECWeekViewEvent,
        view: UIView
    ) {
        // Handle event tap
        let alert = UIAlertController(
            title: event.title,
            message: "(event.subtitle)

            Start: (event.start.toFormat("h:mm a"))
            End: (event.end.toFormat("h:mm a"))
            ",
            preferredStyle: .alert
        )

        alert.addAction(UIAlertAction(title: "Edit", style: .default) { _ in
            // Navigate to edit screen
            self.editEvent(event)
        })

        alert.addAction(UIAlertAction(title: "Delete", style: .destructive) { _ in
            // Delete event
            self.deleteEvent(event)
        })

        alert.addAction(UIAlertAction(title: "Cancel", style: .cancel))

        present(alert, animated: true)
    }

    func weekViewDidClickOnFreeTime(
        _ weekView: ECWeekView,
        date: DateInRegion
    ) {
        // Handle free time tap - create new event
        let alert = UIAlertController(
            title: "Create Event",
            message: "Create an event at (date.toFormat("EEE, MMM d 'at' h:mm a"))?",
            preferredStyle: .alert
        )

        alert.addAction(UIAlertAction(title: "Create", style: .default) { _ in
            // Navigate to create event screen with pre-filled time
            self.createEvent(at: date)
        })

        alert.addAction(UIAlertAction(title: "Cancel", style: .cancel))

        present(alert, animated: true)
    }

    private func editEvent(_ event: ECWeekViewEvent) {
        // Implementation for editing event
        print("Editing event: (event.title)")
    }

    private func deleteEvent(_ event: ECWeekViewEvent) {
        // Implementation for deleting event
        print("Deleting event: (event.title)")
    }

    private func createEvent(at date: DateInRegion) {
        // Implementation for creating new event
        print("Creating event at: (date.toString())")
    }
}
```

--------------------------------

### Implement ECWeekViewStyler Protocol in Swift

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

Use the `ECWeekViewStyler` protocol to customize the appearance of the week view. You can define how event views and header views are created by implementing the respective functions and assigning your custom styler to the `styler` property.

```swift
// Creates the view for an event
func weekViewStylerECEventView(_ weekView: ECWeekView, eventContainer: CGRect, event: ECWeekViewEvent) -> UIView

// Create the header view for the day in the calendar. This would normally contain information about the date
func weekViewStylerHeaderView(_ weekView: ECWeekView, with date: DateInRegion, in cell: UICollectionViewCell) -> UIView
```

--------------------------------

### Customize ECWeekView Events and Headers with Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Implement the ECWeekViewStyler protocol in Swift to create custom views for events and day headers. This allows for detailed control over appearance, including fonts, colors, and layouts. It requires importing ECWeekView, SwiftDate, and UIKit. The styler can define custom views for individual events and their headers, including highlighting the current day.

```swift
import ECWeekView
import SwiftDate
import UIKit

class CustomWeekViewStyler: ECWeekViewStyler {
    var font: UIFont {
        return UIFont.systemFont(ofSize: 12, weight: .medium)
    }

    var showsDateHeader: Bool {
        return true
    }

    var dateHeaderHeight: CGFloat {
        return 30
    }

    func weekViewStylerECEventView(
        _ weekView: ECWeekView,
        eventContainer: CGRect,
        event: ECWeekViewEvent
    ) -> UIView {
        // Create custom event view
        let eventView = UIView(frame: eventContainer)
        eventView.backgroundColor = UIColor.systemBlue.withAlphaComponent(0.8)
        eventView.layer.cornerRadius = 6
        eventView.clipsToBounds = true

        // Add title label
        let titleLabel = UILabel()
        titleLabel.text = event.title
        titleLabel.font = UIFont.boldSystemFont(ofSize: 12)
        titleLabel.textColor = .white
        titleLabel.numberOfLines = 0

        // Add subtitle label
        let subtitleLabel = UILabel()
        subtitleLabel.text = event.subtitle
        subtitleLabel.font = UIFont.systemFont(ofSize: 10)
        subtitleLabel.textColor = .white
        subtitleLabel.alpha = 0.9
        subtitleLabel.numberOfLines = 0

        // Add time label
        let timeLabel = UILabel()
        timeLabel.text = "(event.start.toFormat("h:mm a")) - (event.end.toFormat("h:mm a"))"
        timeLabel.font = UIFont.systemFont(ofSize: 9)
        timeLabel.textColor = .white
        timeLabel.alpha = 0.7

        // Stack layout
        let stackView = UIStackView(arrangedSubviews: [titleLabel, subtitleLabel, timeLabel])
        stackView.axis = .vertical
        stackView.spacing = 2
        stackView.translatesAutoresizingMaskIntoConstraints = false

        eventView.addSubview(stackView)
        NSLayoutConstraint.activate([
            stackView.topAnchor.constraint(equalTo: eventView.topAnchor, constant: 4),
            stackView.leadingAnchor.constraint(equalTo: eventView.leadingAnchor, constant: 6),
            stackView.trailingAnchor.constraint(equalTo: eventView.trailingAnchor, constant: -6)
        ])

        return eventView
    }

    func weekViewStylerHeaderView(
        _ weekView: ECWeekView,
        with date: DateInRegion,
        in cell: UICollectionViewCell
    ) -> UIView? {
        // Create custom header view
        let headerView = UIView(frame: CGRect(x: 0, y: 0, width: cell.frame.width, height: dateHeaderHeight))
        headerView.backgroundColor = UIColor.systemGray6

        // Day of week label
        let dayLabel = UILabel()
        dayLabel.text = date.toFormat("EEE")
        dayLabel.font = UIFont.systemFont(ofSize: 10, weight: .semibold)
        dayLabel.textColor = .systemGray
        dayLabel.textAlignment = .center

        // Day number label
        let numberLabel = UILabel()
        numberLabel.text = date.toFormat("d")
        numberLabel.font = UIFont.systemFont(ofSize: 14, weight: .bold)
        numberLabel.textColor = .black
        numberLabel.textAlignment = .center

        // Highlight today
        let today = DateInRegion()
        if date.isToday {
            numberLabel.textColor = .systemBlue
            numberLabel.backgroundColor = UIColor.systemBlue.withAlphaComponent(0.1)
            numberLabel.layer.cornerRadius = 12
            numberLabel.clipsToBounds = true
        }

        // Stack layout
        let stackView = UIStackView(arrangedSubviews: [dayLabel, numberLabel])
        stackView.axis = .vertical
        stackView.spacing = 2
        stackView.translatesAutoresizingMaskIntoConstraints = false

        headerView.addSubview(stackView)
        NSLayoutConstraint.activate([
            stackView.centerXAnchor.constraint(equalTo: headerView.centerXAnchor),
            stackView.centerYAnchor.constraint(equalTo: headerView.centerYAnchor)
        ])

        return headerView
    }
}

// Usage
let customStyler = CustomWeekViewStyler()
weekView.styler = customStyler

```

--------------------------------

### Configure ECWeekView Themes with Swift

Source: https://context7.com/evancooper9/swift-week-view/llms.txt

Apply built-in light or dark themes to the ECWeekView using the 'colorTheme' property. This affects various visual elements like background colors, line colors, and text colors. Additionally, 'nowLineColor' can be set independently. This feature requires importing ECWeekView and UIKit.

```swift
import ECWeekView
import UIKit

// Configure light theme (default)
weekView.colorTheme = .light
weekView.nowLineColor = .systemRed

// Configure dark theme
weekView.colorTheme = .dark
weekView.nowLineColor = .systemOrange

// Theme properties affect:
// - baseColor: Background color of time column
// - hourLineColor: Color of horizontal hour divider lines
// - hourTextColor: Color of hour labels (9:00, 10:00, etc.)
// - eventTextColor: Color of text within events
// - weekendColor: Background color for weekend days

```

--------------------------------

### Implement ECWeekViewDataSource Protocol in Swift

Source: https://github.com/evancooper9/swift-week-view/blob/master/README.md

Implement the `weekViewGenerateEvents` function to provide calendar events for a specific date. This function should return a list of `ECWeekViewEvent` objects. For events requiring asynchronous creation, use the `eventCompletion` closure. Note that events currently rely on a 24-hour clock.

```swift
func weekViewGenerateEvents(_ weekView: ECWeekView, date: DateInRegion, eventCompletion: @escaping ([ECWeekViewEvent]?) -> Void) -> [ECWeekViewEvent]? {
  let start: DateInRegion = date.dateBySet(hour: 12, min: 0, secs: 0)!
  let end: DateInRegion = date.dateBySet(hour: 13, min: 0, secs: 0)!
  let event: ECWeekViewEvent = ECWeekViewEvent(title: "Lunch", start: start, end: end)

  DispatchQueue.global(.background).async {
    // do some async work & create events...
    eventCompletion([event, ...])
  }

  return [event]
}
```

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