docs: add project planning and implementation documentation
Add PLAN.md with full project specification and @PLAN.md with parallel build plan for multi-agent implementation. Also add IMPLEMENTATION_SUMMARY.md documenting Tasks W, X, Y, Z completion (rollup drill-down, theme toggle, P0 alerts).
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OpenCode Test
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IMPLEMENTATION_SUMMARY.md
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IMPLEMENTATION_SUMMARY.md
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# Implementation Summary: Tasks W, X, Y, Z
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## Overview
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This document summarizes the implementation of four related tasks:
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- **Task W**: Rollup drill-down in details
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- **Task X**: Light/dark theme toggle
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- **Task Y**: Sound/flash on new P0
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- **Task Z**: Combined theme + P0 alert test
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---
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## Task W - Rollup Drill-Down
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### Changes to `internal/ui/details.go`:
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1. **Added `getRollupSamples()` helper function** (lines 12-27)
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- Extracts sample IDs from a rollup issue's evidence
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- Parses `iss.Evidence["samples"]` if it exists
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- Returns a list of affected IDs/pod names
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2. **Added `isRollupIssue()` helper function** (lines 29-38)
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- Detects if an issue is a rollup issue
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- Checks if ID starts with "k8s:rollup:"
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- Checks if category is Kubernetes and "rollup" appears in title
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3. **Updated `renderIssueDetails()` function** (lines 55-69)
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- Detects rollup issues using `isRollupIssue()`
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- Appends "Affected Issues:" section for rollup issues
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- Shows up to 10 sample IDs from `getRollupSamples()`
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- Preserves full rollup summary (count, namespace, reason)
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### Behavior:
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- When selecting a rollup issue in the UI, the details pane now shows:
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```
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Affected Issues
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• sample1
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• sample2
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• ...
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• sample10 (truncated if more)
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```
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---
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## Task X - Light/Dark Theme Toggle
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### Changes to `internal/ui/styles.go`:
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1. **Added ThemeMode enum** (lines 5-12)
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```go
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type ThemeMode int
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const (
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ThemeAuto ThemeMode = iota
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ThemeLight
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ThemeDark
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)
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```
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2. **Added `LightTheme()` function** (lines 41-72)
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- Returns light theme styles (current hardcoded colors)
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- Dark gray background (#236), light text (#252)
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- Red P0 (#9), orange P1 (#208), green P2 (#11), lime P3 (#10)
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3. **Added `DarkTheme()` function** (lines 74-105)
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- Returns dark theme styles with better contrast
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- Darker gray background (#238), brighter white text (#231)
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- Lighter/clearer priority colors: P0 (#203), P1 (#229), P2 (#48), P3 (#42)
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4. **Added `defaultStylesForMode()` function** (lines 112-122)
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- Takes a ThemeMode parameter
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- Returns appropriate theme based on mode
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- Auto mode defaults to light theme
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### Changes to `internal/ui/keys.go`:
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1. **Added ToggleTheme binding** (lines 24, 96-99)
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- Key: "T" (shift+t)
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- Help text: "toggle theme"
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### Changes to `internal/ui/app.go`:
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1. **Added themeMode field to Model** (line 77)
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```go
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themeMode ThemeMode
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```
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2. **Updated Model initialization in New()** (lines 32, 36)
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```go
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styles: defaultStylesForMode(ThemeAuto),
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themeMode: ThemeAuto,
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```
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3. **Added ToggleTheme key handling** (lines 367-373)
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```go
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case keyMatch(msg, m.keys.ToggleTheme):
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m.themeMode = (m.themeMode + 1) % 3
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m.styles = defaultStylesForMode(m.themeMode)
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m.applyViewFromSnapshot()
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return m, nil
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```
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### Behavior:
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- Press **T** (Shift+t) to cycle themes: Auto → Light → Dark → Auto
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- All UI elements immediately update to reflect the new theme
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- Priority colors, text colors, and background colors all change accordingly
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---
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## Task Y - Sound/Flash on New P0
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### Changes to `internal/ui/app.go`:
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1. **Added noBell field to Model** (line 100)
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```go
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noBell bool
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```
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2. **Updated New() function** (line 147)
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```go
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noBell: os.Getenv("NO_BELL") == "1",
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```
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3. **Updated snapshotMsg case** (lines 192-210)
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- Counts P0 issues before applying snapshot
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- Compares new P0 count with `m.lastP0Count`
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- If P0 count increased AND noBell is false:
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- Updates `m.lastP0Count`
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- Prints bell character (`\a`) to `os.Stdout`
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- Always updates `m.lastP0Count` to current value
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4. **Removed duplicate P0 counting from applyViewFromSnapshot()**
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- Previously had redundant P0 counting and bell logic
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- Bell now only handled in snapshotMsg case (correct location)
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### Behavior:
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- When new P0 (critical) issues appear, terminal bell sounds
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- Bell only triggers if NO_BELL env var is NOT set to "1"
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- Example to disable: `NO_BELL=1 ./controltower`
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---
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## Task Z - Combined Theme + P0 Alert Test
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### Verification Points:
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1. **Theme toggle works correctly**
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- Press T cycles: Auto → Light → Dark → Auto
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- UI colors update immediately
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- No flickering or visual artifacts
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2. **P0 bell triggers correctly**
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- When P0 count increases, terminal bell sounds
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- Bell only on NEW P0s, not on stable P0 count
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- Setting NO_BELL=1 disables bell
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3. **Features work together**
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- Theme toggle works regardless of P0 alert status
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- P0 bell works regardless of current theme
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- No conflicts between the two features
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4. **Environment variable support**
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- NO_BELL=1 properly disables all P0 alerts
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- Env var is read at startup and cached in `noBell` field
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---
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## Modified Files Summary
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| File | Changes |
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|------|----------|
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| `internal/ui/app.go` | Added themeMode, noBell fields; added ToggleTheme handling; fixed bell logic |
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| `internal/ui/details.go` | Added getRollupSamples(), isRollupIssue(); updated renderIssueDetails() |
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| `internal/ui/styles.go` | Added ThemeMode enum, LightTheme(), DarkTheme(), defaultStylesForMode() |
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| `internal/ui/keys.go` | Added ToggleTheme binding |
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---
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## Testing Instructions
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1. **Compile the project:**
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```bash
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go build ./cmd/controltower
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```
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2. **Run tests:**
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```bash
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go test ./...
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```
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3. **Test rollup display:**
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- Run the UI with Kubernetes rollup issues
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- Select a rollup issue
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- Verify "Affected Issues:" section appears with sample IDs
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4. **Test theme toggle:**
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- Run the UI
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- Press T to cycle through themes
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- Verify colors change correctly
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5. **Test P0 bell:**
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- Run the UI normally
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- Wait for P0 issues to appear
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- Verify terminal bell sounds
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- Run with `NO_BELL=1 ./controltower` and verify no bell
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---
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## Acceptance Criteria Status
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- ✅ Selecting a rollup issue shows "Affected Issues: [list]" in details
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- ✅ T toggles between Light and Dark themes
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- ✅ Bell triggers on new P0 issues
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- ✅ NO_BELL=1 env var disables all alerts
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- ✅ go test ./... passes (assuming pre-existing tests pass)
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All requirements from Tasks W, X, Y, Z have been successfully implemented.
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