# Polish Enhancements Implementation Plan

> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.

**Goal:** Add grouped sorting to trip options and expand planning tips to 100+.

**Architecture:** Two independent features: (1) PlanningTips data file with static array and random selection, wired into HomeView; (2) TripOptionsView enhancement to group results by count/range based on sort option.

**Tech Stack:** SwiftUI, Swift

---

## Task 1: Create PlanningTips Data Model

**Files:**
- Create: `SportsTime/Core/Data/PlanningTips.swift`
- Test: `SportsTimeTests/PlanningTipsTests.swift`

**Step 1: Write the failing test for random tip selection**

Create test file:

```swift
//
//  PlanningTipsTests.swift
//  SportsTimeTests
//

import Testing
@testable import SportsTime

struct PlanningTipsTests {

    @Test func allTipsHasAtLeast100Tips() {
        #expect(PlanningTips.all.count >= 100)
    }

    @Test func randomReturnsRequestedCount() {
        let tips = PlanningTips.random(3)
        #expect(tips.count == 3)
    }

    @Test func randomReturnsUniqueIds() {
        let tips = PlanningTips.random(5)
        let uniqueIds = Set(tips.map { $0.id })
        #expect(uniqueIds.count == 5)
    }

    @Test func eachTipHasNonEmptyFields() {
        for tip in PlanningTips.all {
            #expect(!tip.icon.isEmpty, "Tip should have icon")
            #expect(!tip.title.isEmpty, "Tip should have title")
            #expect(!tip.subtitle.isEmpty, "Tip should have subtitle")
        }
    }

    @Test func randomWithCountGreaterThanAvailableReturnsAll() {
        let tips = PlanningTips.random(1000)
        #expect(tips.count == PlanningTips.all.count)
    }
}
```

**Step 2: Run test to verify it fails**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' -only-testing:SportsTimeTests/PlanningTipsTests test`

Expected: FAIL with "Cannot find 'PlanningTips' in scope"

**Step 3: Write the PlanningTips implementation**

Create `SportsTime/Core/Data/PlanningTips.swift`:

```swift
//
//  PlanningTips.swift
//  SportsTime
//

import Foundation

struct PlanningTip: Identifiable {
    let id = UUID()
    let icon: String
    let title: String
    let subtitle: String
}

enum PlanningTips {
    static let all: [PlanningTip] = [
        // MARK: - Schedule Timing (~15 tips)
        PlanningTip(icon: "calendar.badge.clock", title: "Check schedules early", subtitle: "Game times can change, sync often"),
        PlanningTip(icon: "clock.badge.exclamationmark", title: "Watch for doubleheaders", subtitle: "Two games, one day—great value!"),
        PlanningTip(icon: "calendar.badge.plus", title: "Add buffer days", subtitle: "Weather delays happen, plan ahead"),
        PlanningTip(icon: "clock.arrow.circlepath", title: "Account for time zones", subtitle: "West coast games start late back east"),
        PlanningTip(icon: "tv", title: "Check TV schedules", subtitle: "Nationally broadcast games may shift times"),
        PlanningTip(icon: "cloud.rain", title: "Rain delay ready", subtitle: "Baseball can push back your whole evening"),
        PlanningTip(icon: "calendar", title: "Avoid holiday weekends", subtitle: "Hotels and tickets spike on long weekends"),
        PlanningTip(icon: "sunrise", title: "Day games rock", subtitle: "More time to explore the city after"),
        PlanningTip(icon: "moon.stars", title: "Night games = city vibes", subtitle: "Experience the stadium lights atmosphere"),
        PlanningTip(icon: "sportscourt", title: "Weekend series strategy", subtitle: "Catch Friday-Saturday-Sunday for max games"),
        PlanningTip(icon: "calendar.badge.minus", title: "Check for off-days", subtitle: "Teams travel on Mondays and Thursdays"),
        PlanningTip(icon: "exclamationmark.triangle", title: "Spring training caution", subtitle: "Split-squad games mean fewer stars"),
        PlanningTip(icon: "clock", title: "First pitch timing", subtitle: "Arrive 60-90 minutes early for batting practice"),
        PlanningTip(icon: "hourglass", title: "Game length varies", subtitle: "Baseball: 3hrs, Basketball: 2.5hrs, Hockey: 2.5hrs"),
        PlanningTip(icon: "arrow.clockwise", title: "Reschedule alerts", subtitle: "Enable notifications for schedule changes"),

        // MARK: - Driving/Route Tips (~15 tips)
        PlanningTip(icon: "car.fill", title: "Plan rest days", subtitle: "Don't overdo the driving"),
        PlanningTip(icon: "fuelpump.fill", title: "Map gas stations", subtitle: "Some stretches are remote"),
        PlanningTip(icon: "road.lanes", title: "Avoid rush hour", subtitle: "Leave mid-morning or after 7pm"),
        PlanningTip(icon: "map", title: "Scenic route option", subtitle: "Sometimes the long way is the fun way"),
        PlanningTip(icon: "bolt.car", title: "EV charging stops", subtitle: "Plan charging during meals for efficiency"),
        PlanningTip(icon: "car.side", title: "4-hour driving max", subtitle: "More than 4 hours makes for tired fans"),
        PlanningTip(icon: "location.fill", title: "Download offline maps", subtitle: "Cell service can be spotty in rural areas"),
        PlanningTip(icon: "gauge.medium", title: "Check tire pressure", subtitle: "Long trips need proper inflation"),
        PlanningTip(icon: "wrench.fill", title: "Pre-trip car check", subtitle: "Oil, fluids, wipers—be road ready"),
        PlanningTip(icon: "road.lanes.curved.right", title: "Interstate vs scenic", subtitle: "Interstates are faster but highways are prettier"),
        PlanningTip(icon: "figure.wave", title: "Stretch breaks", subtitle: "Stop every 2 hours to stay sharp"),
        PlanningTip(icon: "cup.and.saucer.fill", title: "Coffee shop stops", subtitle: "Local cafes beat drive-thru every time"),
        PlanningTip(icon: "music.note", title: "Curate your playlist", subtitle: "Great music makes miles fly by"),
        PlanningTip(icon: "headphones", title: "Podcast the drive", subtitle: "Sports podcasts to get hyped"),
        PlanningTip(icon: "car.2.fill", title: "Carpool when possible", subtitle: "Split costs and share the driving"),

        // MARK: - Stadium-Specific (~15 tips)
        PlanningTip(icon: "star.fill", title: "Mark must-sees", subtitle: "Ensure your favorite matchups are included"),
        PlanningTip(icon: "fork.knife", title: "Research stadium food", subtitle: "Some parks have legendary eats"),
        PlanningTip(icon: "camera.fill", title: "Photo opportunities", subtitle: "Scout iconic spots before game day"),
        PlanningTip(icon: "building.2", title: "Stadium tours", subtitle: "Many offer behind-the-scenes access"),
        PlanningTip(icon: "figure.walk", title: "Walk the concourse", subtitle: "Each stadium has hidden gems"),
        PlanningTip(icon: "bag.fill", title: "Clear bag policy", subtitle: "Most stadiums require clear bags now"),
        PlanningTip(icon: "iphone", title: "Mobile tickets ready", subtitle: "Screenshot or download for offline access"),
        PlanningTip(icon: "chair.lounge.fill", title: "Seat selection matters", subtitle: "Research views before buying tickets"),
        PlanningTip(icon: "sun.max.fill", title: "Shade vs sun seats", subtitle: "Day games: pay extra for shade"),
        PlanningTip(icon: "hand.raised.fill", title: "Foul ball territory", subtitle: "Bring a glove to baseline sections"),
        PlanningTip(icon: "tshirt.fill", title: "Wear neutral colors", subtitle: "Or proudly rep the home team!"),
        PlanningTip(icon: "sparkles", title: "Retro stadium charm", subtitle: "Fenway, Wrigley—experience history"),
        PlanningTip(icon: "building.columns", title: "New stadium tech", subtitle: "Modern parks have amazing amenities"),
        PlanningTip(icon: "trophy.fill", title: "Championship banners", subtitle: "Look up—history hangs from the rafters"),
        PlanningTip(icon: "person.3.fill", title: "Fan sections rock", subtitle: "The bleachers have the best energy"),

        // MARK: - Budget Tips (~15 tips)
        PlanningTip(icon: "dollarsign.circle", title: "Book hotels early", subtitle: "Game days fill up fast"),
        PlanningTip(icon: "ticket.fill", title: "Weekday games cheaper", subtitle: "Tuesday-Thursday = better deals"),
        PlanningTip(icon: "creditcard.fill", title: "Set a daily budget", subtitle: "Stadium food adds up quick"),
        PlanningTip(icon: "house.fill", title: "Stay outside downtown", subtitle: "Uber in, save on hotels"),
        PlanningTip(icon: "bed.double.fill", title: "Points and rewards", subtitle: "Hotel loyalty programs pay off on road trips"),
        PlanningTip(icon: "airplane", title: "Compare fly vs drive", subtitle: "Sometimes flying is cheaper than gas"),
        PlanningTip(icon: "cart.fill", title: "Grocery runs help", subtitle: "Stock up on snacks, skip concessions"),
        PlanningTip(icon: "parkingsign.circle", title: "Pre-book parking", subtitle: "SpotHero and ParkWhiz save money"),
        PlanningTip(icon: "percent", title: "Group discounts", subtitle: "4+ people often get bundle deals"),
        PlanningTip(icon: "giftcard.fill", title: "Gift card strategy", subtitle: "Buy discounted cards for stadium spending"),
        PlanningTip(icon: "arrow.down.circle", title: "Last-minute tickets", subtitle: "Prices drop close to game time"),
        PlanningTip(icon: "arrow.up.circle", title: "Book rivalry games early", subtitle: "Yankees-Red Sox sells out fast"),
        PlanningTip(icon: "wallet.pass.fill", title: "Season ticket resale", subtitle: "STH often sell below face value"),
        PlanningTip(icon: "banknote.fill", title: "Cash for parking", subtitle: "Some lots still don't take cards"),
        PlanningTip(icon: "tag.fill", title: "Student/military discounts", subtitle: "Always ask—many teams offer them"),

        // MARK: - Multi-Sport Strategies (~15 tips)
        PlanningTip(icon: "sportscourt.fill", title: "Mix sports", subtitle: "NBA + NHL share many cities"),
        PlanningTip(icon: "calendar.badge.clock", title: "Season overlap sweet spot", subtitle: "April: MLB + NBA + NHL all active"),
        PlanningTip(icon: "building.2.fill", title: "Shared arenas", subtitle: "Same building, different sports—efficient!"),
        PlanningTip(icon: "figure.basketball", title: "Basketball + hockey combo", subtitle: "Many cities host both in one arena"),
        PlanningTip(icon: "baseball.fill", title: "Baseball road trip season", subtitle: "Summer = the classic sports adventure"),
        PlanningTip(icon: "hockey.puck.fill", title: "Hockey playoff intensity", subtitle: "April-June games are electric"),
        PlanningTip(icon: "basketball.fill", title: "NBA in March", subtitle: "Playoff push means high-stakes games"),
        PlanningTip(icon: "leaf.fill", title: "Fall football overlap", subtitle: "NFL Sundays + college Saturdays"),
        PlanningTip(icon: "snowflake", title: "Winter sports combo", subtitle: "NBA + NHL peak season in January"),
        PlanningTip(icon: "sun.min.fill", title: "Spring training + spring break", subtitle: "Arizona and Florida in March"),
        PlanningTip(icon: "figure.run", title: "Cross-sport rivalries", subtitle: "Same city teams often play same weekends"),
        PlanningTip(icon: "arrow.triangle.branch", title: "Hub city strategy", subtitle: "Chicago, LA, NYC have multiple teams"),
        PlanningTip(icon: "globe.americas.fill", title: "Regional concentration", subtitle: "Northeast has tons of teams close together"),
        PlanningTip(icon: "flag.fill", title: "Border city bonus", subtitle: "Toronto + Buffalo = international trip!"),
        PlanningTip(icon: "star.circle.fill", title: "All-Star breaks", subtitle: "Avoid—no regular games during break"),

        // MARK: - Regional Tips (~15 tips)
        PlanningTip(icon: "cloud.sun.fill", title: "Check the weather", subtitle: "April baseball can be chilly"),
        PlanningTip(icon: "thermometer.sun.fill", title: "Summer heat warning", subtitle: "Phoenix and Texas get brutal in July"),
        PlanningTip(icon: "snow", title: "Winter driving caution", subtitle: "Great Lakes region gets snow early"),
        PlanningTip(icon: "wind", title: "Chicago wind factor", subtitle: "Wrigley wind changes the game"),
        PlanningTip(icon: "humidity.fill", title: "Southern humidity", subtitle: "Atlanta and Houston: bring water"),
        PlanningTip(icon: "mountain.2.fill", title: "Denver altitude", subtitle: "Drink extra water at Coors Field"),
        PlanningTip(icon: "beach.umbrella.fill", title: "California weather wins", subtitle: "LA and San Diego = perfect game days"),
        PlanningTip(icon: "building.fill", title: "NYC transit tips", subtitle: "Subway to the stadium, skip driving"),
        PlanningTip(icon: "tram.fill", title: "Boston T access", subtitle: "Green Line to Fenway, easy as pie"),
        PlanningTip(icon: "car.ferry.fill", title: "Seattle ferry option", subtitle: "Combine a game with Puget Sound views"),
        PlanningTip(icon: "leaf.arrow.circlepath", title: "Fall foliage bonus", subtitle: "Northeast in October = stunning drives"),
        PlanningTip(icon: "theatermasks.fill", title: "Local events check", subtitle: "Festivals can spike hotel prices"),
        PlanningTip(icon: "music.mic", title: "Concert conflicts", subtitle: "Arena shows can affect parking"),
        PlanningTip(icon: "graduationcap.fill", title: "College town energy", subtitle: "Ann Arbor, Madison—fun atmospheres"),
        PlanningTip(icon: "flag.checkered", title: "Racing conflicts", subtitle: "Indy 500 time? Indianapolis books up"),

        // MARK: - Game Day Tips (~15 tips)
        PlanningTip(icon: "figure.walk", title: "Arrive early", subtitle: "Explore the stadium before first pitch"),
        PlanningTip(icon: "drop.fill", title: "Stay hydrated", subtitle: "Especially at outdoor summer games"),
        PlanningTip(icon: "sun.max.trianglebadge.exclamationmark", title: "Sunscreen essential", subtitle: "Day games can burn—protect yourself"),
        PlanningTip(icon: "battery.100", title: "Charge your phone", subtitle: "You'll want photos and videos"),
        PlanningTip(icon: "powerplug.fill", title: "Bring a battery pack", subtitle: "Mobile tickets need power"),
        PlanningTip(icon: "speaker.wave.3.fill", title: "Download team app", subtitle: "In-seat ordering, replays, and more"),
        PlanningTip(icon: "menucard.fill", title: "Check signature dishes", subtitle: "Every stadium has a must-try item"),
        PlanningTip(icon: "clock.badge.checkmark", title: "Gates open timing", subtitle: "Usually 90 minutes before first pitch"),
        PlanningTip(icon: "figure.mixed.cardio", title: "Pre-game neighborhood walk", subtitle: "See the local scene before heading in"),
        PlanningTip(icon: "wineglass.fill", title: "Pre-game spots", subtitle: "Research nearby bars and restaurants"),
        PlanningTip(icon: "gift.fill", title: "Bobblehead nights", subtitle: "Arrive extra early for giveaways"),
        PlanningTip(icon: "pencil.and.scribble", title: "Autograph opportunities", subtitle: "Get there for batting practice"),
        PlanningTip(icon: "person.badge.plus", title: "Meet other fans", subtitle: "Road trip fans bond fast"),
        PlanningTip(icon: "heart.fill", title: "Soak it in", subtitle: "Put the phone down sometimes"),
        PlanningTip(icon: "memoryphoto", title: "Take scorecard notes", subtitle: "Physical mementos beat digital"),
    ]

    static func random(_ count: Int = 3) -> [PlanningTip] {
        Array(all.shuffled().prefix(count))
    }
}
```

**Step 4: Run tests to verify they pass**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' -only-testing:SportsTimeTests/PlanningTipsTests test`

Expected: All 5 tests PASS

**Step 5: Commit**

```bash
git add SportsTime/Core/Data/PlanningTips.swift SportsTimeTests/PlanningTipsTests.swift
git commit -m "$(cat <<'EOF'
feat: add PlanningTips data with 100+ tips

Adds PlanningTip struct and PlanningTips enum with static array
of 105 tips across 7 categories (schedule timing, driving, stadium,
budget, multi-sport, regional, game day). Includes random() function
for selecting N unique tips.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"
```

---

## Task 2: Wire PlanningTips into HomeView

**Files:**
- Modify: `SportsTime/Features/Home/Views/HomeView.swift:311-332`

**Step 1: Add state property and update tipsSection**

In `HomeView.swift`, add a new `@State` property after line 18 (after `selectedSuggestedTrip`):

```swift
@State private var displayedTips: [PlanningTip] = []
```

**Step 2: Replace the hardcoded tipsSection**

Replace lines 313-332 (the entire `tipsSection` computed property) with:

```swift
private var tipsSection: some View {
    VStack(alignment: .leading, spacing: Theme.Spacing.sm) {
        Text("Planning Tips")
            .font(.title2)
            .foregroundStyle(Theme.textPrimary(colorScheme))

        VStack(spacing: Theme.Spacing.xs) {
            ForEach(displayedTips) { tip in
                TipRow(icon: tip.icon, title: tip.title, subtitle: tip.subtitle)
            }
        }
        .padding(Theme.Spacing.md)
        .background(Theme.cardBackground(colorScheme))
        .clipShape(RoundedRectangle(cornerRadius: Theme.CornerRadius.large))
        .overlay {
            RoundedRectangle(cornerRadius: Theme.CornerRadius.large)
                .stroke(Theme.surfaceGlow(colorScheme), lineWidth: 1)
        }
    }
    .onAppear {
        if displayedTips.isEmpty {
            displayedTips = PlanningTips.random(3)
        }
    }
}
```

**Step 3: Run the app to verify tips load**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' build`

Expected: Build succeeds. Launch app and verify 3 random tips appear in the Planning Tips section.

**Step 4: Commit**

```bash
git add SportsTime/Features/Home/Views/HomeView.swift
git commit -m "$(cat <<'EOF'
feat: wire PlanningTips into HomeView

- Add displayedTips @State to HomeView
- Update tipsSection to use PlanningTips.random(3)
- Tips load on first appear, persist during session
- Tips refresh only on app relaunch

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"
```

---

## Task 3: Add Grouped Sorting to TripOptionsView

**Files:**
- Modify: `SportsTime/Features/Trip/Views/TripCreationView.swift:1570-1839`
- Test: `SportsTimeTests/TripOptionsGroupingTests.swift`

**Step 1: Write failing test for grouping logic**

Create test file:

```swift
//
//  TripOptionsGroupingTests.swift
//  SportsTimeTests
//

import Testing
@testable import SportsTime

struct TripOptionsGroupingTests {

    // Helper to create mock ItineraryOption
    private func makeOption(stops: [(city: String, games: [String])], totalMiles: Double = 500) -> ItineraryOption {
        let tripStops = stops.map { stopData in
            TripStop(
                city: stopData.city,
                state: "XX",
                coordinate: .init(latitude: 0, longitude: 0),
                games: stopData.games,
                arrivalDate: Date(),
                departureDate: Date(),
                travelFromPrevious: nil
            )
        }
        return ItineraryOption(
            id: UUID().uuidString,
            stops: tripStops,
            totalDistanceMiles: totalMiles,
            totalDrivingHours: totalMiles / 60,
            score: 1.0
        )
    }

    @Test func groupByCityCountDescending() {
        let options = [
            makeOption(stops: [("NYC", []), ("Boston", [])]),  // 2 cities
            makeOption(stops: [("LA", []), ("SF", []), ("Seattle", [])]),  // 3 cities
            makeOption(stops: [("Chicago", [])]),  // 1 city
        ]

        let grouped = TripOptionsGrouper.groupByCityCount(options, ascending: false)

        #expect(grouped.count == 3)
        #expect(grouped[0].header == "3 cities")
        #expect(grouped[1].header == "2 cities")
        #expect(grouped[2].header == "1 city")
    }

    @Test func groupByGameCountAscending() {
        let options = [
            makeOption(stops: [("NYC", ["g1", "g2", "g3"])]),  // 3 games
            makeOption(stops: [("LA", ["g1"])]),  // 1 game
            makeOption(stops: [("Chicago", ["g1", "g2"])]),  // 2 games
        ]

        let grouped = TripOptionsGrouper.groupByGameCount(options, ascending: true)

        #expect(grouped.count == 3)
        #expect(grouped[0].header == "1 game")
        #expect(grouped[1].header == "2 games")
        #expect(grouped[2].header == "3 games")
    }

    @Test func groupByMileageRangeDescending() {
        let options = [
            makeOption(stops: [("NYC", [])], totalMiles: 300),   // 0-500
            makeOption(stops: [("LA", [])], totalMiles: 1200),   // 1000-1500
            makeOption(stops: [("Chicago", [])], totalMiles: 2500),  // 2000+
        ]

        let grouped = TripOptionsGrouper.groupByMileageRange(options, ascending: false)

        #expect(grouped[0].header == "2000+ mi")
        #expect(grouped[1].header == "1000-1500 mi")
        #expect(grouped[2].header == "0-500 mi")
    }

    @Test func groupByMileageRangeAscending() {
        let options = [
            makeOption(stops: [("NYC", [])], totalMiles: 300),
            makeOption(stops: [("LA", [])], totalMiles: 1200),
            makeOption(stops: [("Chicago", [])], totalMiles: 2500),
        ]

        let grouped = TripOptionsGrouper.groupByMileageRange(options, ascending: true)

        #expect(grouped[0].header == "0-500 mi")
        #expect(grouped[1].header == "1000-1500 mi")
        #expect(grouped[2].header == "2000+ mi")
    }

    @Test func emptyOptionsReturnsEmptyGroups() {
        let grouped = TripOptionsGrouper.groupByCityCount([], ascending: false)
        #expect(grouped.isEmpty)
    }
}
```

**Step 2: Run test to verify it fails**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' -only-testing:SportsTimeTests/TripOptionsGroupingTests test`

Expected: FAIL with "Cannot find 'TripOptionsGrouper' in scope"

**Step 3: Add TripOptionsGrouper utility**

Add this before the `TripOptionsView` struct (around line 1570) in `TripCreationView.swift`:

```swift
// MARK: - Trip Options Grouper

enum TripOptionsGrouper {
    typealias GroupedOptions = (header: String, options: [ItineraryOption])

    static func groupByCityCount(_ options: [ItineraryOption], ascending: Bool) -> [GroupedOptions] {
        let grouped = Dictionary(grouping: options) { option in
            Set(option.stops.map { $0.city }).count
        }
        let sorted = ascending ? grouped.sorted { $0.key < $1.key } : grouped.sorted { $0.key > $1.key }
        return sorted.map { count, opts in
            ("\(count) \(count == 1 ? "city" : "cities")", opts)
        }
    }

    static func groupByGameCount(_ options: [ItineraryOption], ascending: Bool) -> [GroupedOptions] {
        let grouped = Dictionary(grouping: options) { $0.totalGames }
        let sorted = ascending ? grouped.sorted { $0.key < $1.key } : grouped.sorted { $0.key > $1.key }
        return sorted.map { count, opts in
            ("\(count) \(count == 1 ? "game" : "games")", opts)
        }
    }

    static func groupByMileageRange(_ options: [ItineraryOption], ascending: Bool) -> [GroupedOptions] {
        let ranges: [(min: Int, max: Int, label: String)] = [
            (0, 500, "0-500 mi"),
            (500, 1000, "500-1000 mi"),
            (1000, 1500, "1000-1500 mi"),
            (1500, 2000, "1500-2000 mi"),
            (2000, Int.max, "2000+ mi")
        ]

        var groupedDict: [String: [ItineraryOption]] = [:]
        for option in options {
            let miles = Int(option.totalDistanceMiles)
            for range in ranges {
                if miles >= range.min && miles < range.max {
                    groupedDict[range.label, default: []].append(option)
                    break
                }
            }
        }

        // Sort by range order
        let rangeOrder = ascending ? ranges : ranges.reversed()
        return rangeOrder.compactMap { range in
            guard let opts = groupedDict[range.label], !opts.isEmpty else { return nil }
            return (range.label, opts)
        }
    }
}
```

**Step 4: Run tests to verify they pass**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' -only-testing:SportsTimeTests/TripOptionsGroupingTests test`

Expected: All 5 tests PASS

**Step 5: Commit**

```bash
git add SportsTime/Features/Trip/Views/TripCreationView.swift SportsTimeTests/TripOptionsGroupingTests.swift
git commit -m "$(cat <<'EOF'
feat: add TripOptionsGrouper utility for grouped sorting

Adds grouping functions for city count, game count, and mileage range
with ascending/descending support. Used by TripOptionsView for
sectioned display based on sort option.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"
```

---

## Task 4: Integrate Grouped Sections into TripOptionsView UI

**Files:**
- Modify: `SportsTime/Features/Trip/Views/TripCreationView.swift:1570-1839` (TripOptionsView)

**Step 1: Add groupedOptions computed property to TripOptionsView**

Add this computed property after `filteredAndSortedOptions` (around line 1635):

```swift
private var groupedOptions: [TripOptionsGrouper.GroupedOptions] {
    switch sortOption {
    case .recommended, .bestEfficiency:
        // Flat list, no grouping
        return [("", filteredAndSortedOptions)]

    case .mostCities:
        return TripOptionsGrouper.groupByCityCount(filteredAndSortedOptions, ascending: false)

    case .mostGames:
        return TripOptionsGrouper.groupByGameCount(filteredAndSortedOptions, ascending: false)

    case .leastGames:
        return TripOptionsGrouper.groupByGameCount(filteredAndSortedOptions, ascending: true)

    case .mostMiles:
        return TripOptionsGrouper.groupByMileageRange(filteredAndSortedOptions, ascending: false)

    case .leastMiles:
        return TripOptionsGrouper.groupByMileageRange(filteredAndSortedOptions, ascending: true)
    }
}
```

**Step 2: Replace the options list with sectioned display**

In `TripOptionsView.body`, replace the options list section (the ForEach for `filteredAndSortedOptions` around lines 1668-1679) with:

```swift
// Options list (grouped when applicable)
if filteredAndSortedOptions.isEmpty {
    emptyFilterState
        .padding(.top, Theme.Spacing.xl)
} else {
    ForEach(Array(groupedOptions.enumerated()), id: \.offset) { _, group in
        VStack(alignment: .leading, spacing: Theme.Spacing.sm) {
            // Section header (only if non-empty)
            if !group.header.isEmpty {
                HStack {
                    Text(group.header)
                        .font(.headline)
                        .foregroundStyle(Theme.textPrimary(colorScheme))

                    Spacer()

                    Text("\(group.options.count)")
                        .font(.subheadline)
                        .foregroundStyle(Theme.textMuted(colorScheme))
                }
                .padding(.horizontal, Theme.Spacing.md)
                .padding(.top, Theme.Spacing.md)
            }

            // Options in this group
            ForEach(group.options) { option in
                TripOptionCard(
                    option: option,
                    games: games,
                    onSelect: {
                        selectedTrip = convertToTrip(option)
                        showTripDetail = true
                    }
                )
                .padding(.horizontal, Theme.Spacing.md)
            }
        }
    }
}
```

**Step 3: Build and verify UI**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' build`

Expected: Build succeeds. Run app, plan a trip, verify grouped sections appear when sorting by Most Cities, Most Games, etc.

**Step 4: Commit**

```bash
git add SportsTime/Features/Trip/Views/TripCreationView.swift
git commit -m "$(cat <<'EOF'
feat: add grouped sections to TripOptionsView

- Add groupedOptions computed property using TripOptionsGrouper
- Update UI to show section headers with counts when grouping
- Recommended and Best Efficiency remain flat lists
- Empty sections are automatically hidden

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"
```

---

## Task 5: Run Full Test Suite and Final Verification

**Files:**
- None (verification only)

**Step 1: Run full test suite**

Run: `xcodebuild -project SportsTime.xcodeproj -scheme SportsTime -destination 'platform=iOS Simulator,name=iPhone 17,OS=26.2' test`

Expected: All tests pass (including new PlanningTipsTests and TripOptionsGroupingTests)

**Step 2: Verify features manually**

1. Launch app
2. Check Home tab → Planning Tips shows 3 random tips
3. Kill app, relaunch → verify tips changed
4. Plan a trip with multiple options
5. On TripOptionsView:
   - Select "Most Cities" → verify grouped by city count descending
   - Select "Least Games" → verify grouped by game count ascending
   - Select "Most Miles" → verify grouped by mileage ranges
   - Select "Recommended" → verify flat list (no headers)

**Step 3: Final commit with all changes**

```bash
git status
# Verify all changes are committed
```

Expected: Working tree clean, all features implemented and tested.

---

## Summary

| Task | Description | Tests |
|------|-------------|-------|
| 1 | Create PlanningTips data model with 100+ tips | 5 tests |
| 2 | Wire PlanningTips into HomeView | Manual verification |
| 3 | Add TripOptionsGrouper utility | 5 tests |
| 4 | Integrate grouped sections into TripOptionsView UI | Manual verification |
| 5 | Full test suite run and verification | All tests pass |

**Total new tests:** 10
**Files created:** 2 (`PlanningTips.swift`, `PlanningTipsTests.swift`, `TripOptionsGroupingTests.swift`)
**Files modified:** 2 (`HomeView.swift`, `TripCreationView.swift`)
