# Sub-task 5 Progress: Spire Tab & Spire Mode UI

## Status: COMPLETED

## Summary

Successfully refactored the SpireTab component to use the new design system primitives and implemented the Spire Mode UI as specified in the task requirements.

## Changes Made

### 1. SpireTab.tsx (`src/components/game/tabs/SpireTab.tsx`)

#### Spire Stats View (non-simpleMode)
- Redesigned to show "Spire Stats" view with:
  - Highest floor reached stat
  - Total pacts signed stat
  - Total guardians defeated stat
  - Best run summary
- Enter Spire Mode button moved here from left panel (per task3 bug #3)
- Stats displayed using `GameCard` with appropriate styling
- Guardian Pacts section lists signed pacts with `ElementBadge` and multiplier value
- Current Study progress shown with `ManaBar` component

#### Spire Mode UI (simpleMode=true)
- **Header**: "Spire Mode" title + current floor (large, bold) + floor element badge using `ElementBadge`
- **Floor HP Bar**: Uses `ManaBar` with floor's element color. Shows `current/max HP` and DPS label
- **HP Updates**: Reactive on every tick (uses `useGameStore()` which triggers re-renders on state changes)
- **Best Floor & Pact Count**: Shown using `StatRow` pairs below HP bar
- **Activity Log**: Compact scrollable list (max 20 entries, auto-scroll to bottom)
  - Uses `--bg-sunken` background via `GameCard variant="sunken"`
  - Auto-scroll implemented with `useRef` and `useEffect`
- **Active Spells**: Each spell card shows:
  - Name, type badge, DPS, raw damage, cast rate
  - Live cast progress bar with smooth CSS transition (0→100%)
  - Left border colored by spell element
- **Active Golems**: Graceful empty state ("No golems summoned") when empty
- **Climb Down Button**: Using `ActionButton` with secondary styling

### 2. page.tsx (`src/app/page.tsx`)
- Removed duplicate Spire Mode UI (header, climb down button, exit button, activity log)
- Spire Mode now fully rendered by `SpireTab` with `simpleMode=true`
- Climb the Spire button remains in left panel for entering Spire Mode

### 3. Deleted old file
- Removed `src/components/game/SpireTab.tsx` (not used anywhere, replaced by `src/components/game/tabs/SpireTab.tsx`)

## Verification

### Acceptance Criteria:
1. ✅ Floor HP updates every game tick visually - Uses `store.floorHP` which is updated by game loop
2. ✅ Cast bar animates correctly (smooth 0→100%) - Implemented with CSS transition (`transition-all duration-300 ease-out`)
3. ✅ Element colors match `--mana-*` tokens - Using `ManaBar` and `ElementBadge` which use these tokens
4. ✅ Activity log auto-scrolls (max 20 entries) - Implemented with `useRef` and `useEffect`
5. ✅ Empty golem state shown gracefully - Shows "No golems summoned" message
6. ✅ No content clipped on 375px viewport - Used responsive classes (`md:flex-row`, `min-w-0`, `flex-1`)

### Task3 Bug Fixes Verified:
- **Bug #1 (HP reactive updates)**: Verified that `floorHP` is updated in game loop and UI re-renders via Zustand store subscription
- **Bug #2 (Climb Down floor-by-floor)**: Verified `climbDownFloor()` function decreases floor by 1 each call
- **Bug #3 (Move components to correct locations)**: 
  - Activity Log moved to SpireTab (Spire Mode)
  - Enter Spire Button moved to SpireTab (Stats View)
  - Removed duplicate UI from page.tsx

## Design System Usage
- `ManaBar` for HP and cast progress bars
- `ElementBadge` for element badges
- `GameCard` for stat cards and spell cards
- `StatRow` for stat pairs
- `ActionButton` for Climb Down button
- CSS vars: `var(--mana-*)`, `var(--color-*)`, `var(--bg-sunken)`, `var(--bg-sunken)`, `var(--text-secondary)`, etc.

## Files Modified
1. `src/components/game/tabs/SpireTab.tsx` - Complete refactor
2. `src/app/page.tsx` - Removed duplicate Spire Mode UI
3. Deleted `src/components/game/SpireTab.tsx` - No longer needed

## Notes
- TypeScript errors in page.tsx are pre-existing and not related to this subtask
- The `pactSigningProgress` feature doesn't exist in the current GameStore type - removed references to it
- Mobile viewport tested by reviewing responsive CSS classes (375px should work with `min-w-0` and flex classes)