#if DEBUG
import Foundation
import SwiftUI
// MARK: - Mermaid Rendering Preview
struct MermaidRenderingPreview: View {
private struct Diagram: Identifiable {
let id: String
let heading: String
let markdown: String
}
private static let diagrams: [Diagram] = [
Diagram(
id: "state-fanout",
heading: "State fan-out",
markdown: #"""
```mermaid
stateDiagram-v2
[*] --> Unset : no asr.backend
Unset --> ModuleReady : backend=module and model on disk
Unset --> HttpReady : backend=http and endpoint null or /transcribe
Unset --> ModuleMissing : backend=module, no model
HttpReady --> PhoneOn : identity.dictationStream
ModuleReady --> PhoneOn : identity.dictationStream
ModuleMissing --> PhoneOff : iOS on-device only
```
"""#
),
Diagram(
id: "flowchart-labels",
heading: "Flowchart labels",
markdown: #"""
```mermaid
flowchart TD
subgraph "`**Labels**`"
Q["text with (parens) and *stars*"]
M["`**bold** and _italic_`"]
E["quote:#quot; amp:#amp;"]
U["Café — 日本語 — emoji ✅"]
Q --> M
M -- "`**edge**`" --> E
E --> U
end
```
"""#
),
Diagram(
id: "flowchart",
heading: "Flowchart",
markdown: #"""
```mermaid
flowchart TD
subgraph Review [Code review]
PR[Open PR] --> Decision{Approved?}
Decision -->|no| Fix[Fix comments]
Fix --> PR
Decision -->|yes| Checks
end
subgraph Pipeline [CI]
Checks[Run CI] --> Lint[Lint]
Checks --> Tests[Tests]
Lint --> Merge[Merge]
Tests --> Merge
end
```
"""#
),
Diagram(
id: "sequence",
heading: "Sequence",
markdown: #"""
```mermaid
sequenceDiagram
Alice->>+John: Hello John, how are you?
Note over Alice,John: A typical interaction
alt is sick
John->>Alice: Not so good
Note right of John: Needs rest
else is well
John-->>-Alice: Feeling fresh like a daisy
Note left of Alice: All good
end
```
"""#
),
Diagram(
id: "state",
heading: "State",
markdown: #"""
```mermaid
stateDiagram-v2
[*] --> Ready
Ready --> Working : start
Working --> Ready : finish
Working --> [*] : cancel
```
"""#
),
Diagram(
id: "gantt",
heading: "Gantt",
markdown: #"""
```mermaid
gantt
title Shipping schedule
section Build
Parser :done, parser, 2026-08-01, 3d
Renderer :active, renderer, after parser, 4d
section Ship
Validate :validate, after renderer, 2d
```
"""#
),
Diagram(
id: "mindmap",
heading: "Mindmap",
markdown: #"""
```mermaid
mindmap
root((Oppi))
Apple
Timeline
Files
Server
Sessions
Tools
```
"""#
),
Diagram(
id: "timeline",
heading: "Timeline",
markdown: #"""
```mermaid
timeline
title History of Social Media Platform
2002 : LinkedIn
2004 : Facebook
: Google
2005 : YouTube
2006 : Twitter
```
"""#
),
Diagram(
id: "pie",
heading: "Pie",
markdown: #"""
```mermaid
pie showData title Pets adopted by volunteers
"Dogs" : 386
"Cats" : 85
"Rats" : 15
```
"""#
),
Diagram(
id: "xy",
heading: "XY",
markdown: #"""
```mermaid
xychart-beta
title Oracle issues remaining (crash counted as 10)
x-axis [B, 1, 2, 3, 4, 5, 6, 7, 8]
y-axis "issues" 0 --> 10
bar [10, 9, 9, 9, 6, 1, 0, 0, 0]
line [10, 9, 9, 9, 6, 1, 0, 0, 0]
```
"""#
),
Diagram(
id: "class",
heading: "Class",
markdown: #"""
```mermaid
classDiagram
class BankAccount
BankAccount : +String owner
BankAccount : +BigDecimal balance
BankAccount : +deposit(amount)
BankAccount : +withdrawal(amount)
```
"""#
),
Diagram(
id: "er",
heading: "ER",
markdown: #"""
```mermaid
erDiagram
CUSTOMER ||--o{ ORDER : places
ORDER ||--|{ LINE-ITEM : contains
```
"""#
),
Diagram(
id: "gitgraph",
heading: "Git graph",
markdown: #"""
```mermaid
gitGraph
commit id: "init"
commit id: "docs" tag: "v0.1"
branch develop
checkout develop
commit id: "wip"
commit id: "fix" type: HIGHLIGHT
commit id: "chore" type: REVERSE
checkout main
merge develop id: "merge" tag: "v1.0"
commit id: "release"
cherry-pick id: "fix"
```
"""#
),
Diagram(
id: "quadrant",
heading: "Quadrant",
markdown: #"""
```mermaid
quadrantChart
title Reach and engagement of campaigns
x-axis Low Reach --> High Reach
y-axis Low Engagement --> High Engagement
quadrant-1 We should expand
quadrant-2 Need to promote
quadrant-3 Re-evaluate
quadrant-4 May be improved
Campaign A: [0.3, 0.6]
Campaign B: [0.45, 0.23]
Campaign C: [0.57, 0.69]
Campaign D: [0.78, 0.34]
```
"""#
),
Diagram(
id: "sankey",
heading: "Sankey",
markdown: #"""
```mermaid
sankey-beta
Rendered,Flowchart,10
Rendered,Sequence,8
Rendered,Other native,12
Fallback,Journey,2
Fallback,Kanban,3
Other native,Pie,3
Other native,Gantt,3
```
"""#
),
Diagram(
id: "kanban",
heading: "Kanban",
markdown: #"""
```mermaid
kanban
backlog[Backlog]
task1[Collect every diagram type]@{ ticket: MD-1, priority: 'Very High', assigned: 'Chen' }
task2[Check native vs fallback]@{ ticket: MD-2, priority: 'High' }
doing[In progress]
task3[Steer-test on Duh Ifone]@{ ticket: MD-3, assigned: 'Chen' }
done[Done]
task5[Install Release build]@{ ticket: MD-0, priority: 'Low' }
```
"""#
),
Diagram(
id: "journey",
heading: "Journey",
markdown: #"""
```mermaid
journey
title My working day
section Go to work
Make tea: 5: Me
Go upstairs: 3: Me
Do work: 1: Me, Cat
section Go home
Go downstairs: 5: Me
Sit down: 5: Me
```
"""#
),
]
private let themeID: ThemeID
init() {
themeID = ProcessInfo.processInfo.environment["SCREENSHOT_COLOR_SCHEME"] == "light"
? .light
: .dark
ThemeRuntimeState.setThemeID(themeID)
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 16) {
Text("Production chat Mermaid rendering")
.font(.headline)
.foregroundStyle(.themeFg)
Text("Native fenced mermaid blocks on the production markdown path")
.font(.caption)
.foregroundStyle(.themeComment)
ForEach(Self.diagrams) { diagram in
Text(diagram.heading)
.font(.headline)
.foregroundStyle(.themeFg)
MarkdownContentViewWrapper(content: diagram.markdown, renderingMode: .export)
.frame(maxWidth: .infinity, alignment: .leading)
.accessibilityIdentifier("mermaid.preview.diagram.\(diagram.id)")
}
}
.padding(20)
.accessibilityElement(children: .contain)
.accessibilityIdentifier("mermaid.preview.content")
}
.background(Color.themeBg.ignoresSafeArea())
.preferredColorScheme(themeID == .light ? .light : .dark)
.accessibilityIdentifier("screenshot.ready")
}
}
// The architecture graph that exposed inline/expanded shelf-packing drift.
struct MermaidConsistencyPreview: View {
let expanded: Bool
private let themeID: ThemeID
init(expanded: Bool) {
self.expanded = expanded
themeID = ProcessInfo.processInfo.environment["SCREENSHOT_COLOR_SCHEME"] == "light" ? .light : .dark
ThemeRuntimeState.setThemeID(themeID)
}
var body: some View {
FullScreenCodeView(content: expanded
? .mermaid(content: Self.source, filePath: nil)
: .markdown(content: Self.markdown, filePath: nil))
.preferredColorScheme(themeID == .light ? .light : .dark)
.accessibilityIdentifier("screenshot.ready")
}
static let markdown = "## Oppi architecture\n\nTap the diagram to explore its connections.\n\n```mermaid\n" + source + "\n```"
static let source = """
graph TD
subgraph Apple[Apple clients]
App[iOS and Mac apps]
WorkspaceUI[Sessions inbox, workspace sidebar,
and workspace detail]
Timeline[iOS UIKit and Mac AppKit/SwiftUI timelines]
Voice[Voice input and playback]
end
CLI[Local oppi CLI]
subgraph Server[Oppi server]
LocalHTTP[HTTP over owner-only Unix socket]
HTTP[Network REST API]
Streams[Focused session, app event,
and audio streams]
Router[Session runtime router]
Sessions[Managed SessionManager]
Mirror[Pi TUI mirror runtime]
Bridge[Mirror bridge WebSocket]
ExtensionUI[Pi extension UI relay]
Automations[Saved Agents and schedule runner]
Storage[SQLite session store and local-session catalog]
Project[Shared Pi session projection]
Pi[Pi SDK AgentSession]
end
subgraph Workspace[Workspace runtime]
Files[Workspace files]
Tools[Tools and extensions]
Sandbox[Optional sandbox runtime]
end
CLI --> LocalHTTP
LocalHTTP --> Router
LocalHTTP --> Automations
LocalHTTP --> Storage
App --> HTTP
App --> Streams
HTTP --> Router
HTTP --> Automations
HTTP --> Storage
Streams --> Router
Router --> Sessions
Router --> Mirror
Bridge --> Mirror
Automations --> Sessions
Sessions --> ExtensionUI
Sessions --> Pi
Sessions --> Project
Mirror --> Project
Pi --> Tools
Tools --> Files
Project --> Storage
Tools --> Sandbox
HTTP --> WorkspaceUI
Streams --> WorkspaceUI
Streams --> Timeline
Voice --> Streams
"""
}
// MARK: - Mermaid Fullscreen Preview
/// Production full-screen mermaid viewer at iPhone width, including fit-to-width zoom.
struct MermaidFullscreenPreview: View {
private static let source = """
stateDiagram-v2
[*] --> Unset : no asr.backend
Unset --> ModuleReady : backend=module and model on disk
Unset --> HttpReady : backend=http and endpoint null or /transcribe
Unset --> ModuleMissing : backend=module, no model
HttpReady --> PhoneOn : identity.dictationStream
ModuleReady --> PhoneOn : identity.dictationStream
ModuleMissing --> PhoneOff : iOS on-device only
"""
private let themeID: ThemeID
init() {
themeID = ProcessInfo.processInfo.environment["SCREENSHOT_COLOR_SCHEME"] == "light"
? .light
: .dark
ThemeRuntimeState.setThemeID(themeID)
}
var body: some View {
FullScreenCodeView(content: .mermaid(content: Self.source, filePath: "asr.mmd"))
.preferredColorScheme(themeID == .light ? .light : .dark)
.accessibilityIdentifier("screenshot.ready")
}
}
// MARK: - Mermaid Responsive Routing Preview
struct MermaidResponsiveRoutingPreview: View {
private struct Diagram: Identifiable {
let id: String
let heading: String
let markdown: String
}
private static let diagrams: [Diagram] = [
Diagram(
id: "dense-flowchart",
heading: "Dense flowchart",
markdown: #"""
```mermaid
flowchart TD
Root[Session event stream] --> Decode[Decode protocol envelope]
Decode --> Type{Event type}
Type --> Message[Message delta]
Type --> Tool[Tool lifecycle]
Type --> Ask[Ask request]
Type --> Goal[Goal update]
Type --> Metrics[Usage metrics]
Type --> Files[Changed files]
Type --> Status[Session status]
Type --> Error[Recoverable error]
Message --> Reduce[Timeline reducer]
Tool --> Reduce
Ask --> Reduce
Goal --> Reduce
Metrics --> Reduce
Files --> Reduce
Status --> Reduce
Error --> Reduce
Reduce --> Snapshot[Observable session snapshot]
Snapshot --> Chat[Chat timeline]
Snapshot --> Dock[Extension dock]
Snapshot --> Sidebar[Workspace sidebar]
Snapshot --> Activity[Live Activity]
```
"""#
),
Diagram(
id: "subgraph-entry",
heading: "Subgraph entry",
markdown: #"""
```mermaid
flowchart TD
Start([Incoming request]) --> Validate{Payload valid?}
subgraph Gateway [API Gateway]
Validate -->|yes| Authenticate[Authenticate token]
Validate -->|no| Reject[Return 400 with validation details]
Authenticate --> Authorized{Authorized?}
Authorized -->|no| Deny[Return 403]
end
subgraph Processing [Background processing]
Authorized -->|yes| Queue[Enqueue durable job]
Queue --> WorkerA[Worker A]
Queue --> WorkerB[Worker B]
WorkerA --> Merge[Combine partial results]
WorkerB --> Merge
Merge --> Success{Persisted successfully?}
Success -->|no — retry with exponential backoff| Queue
end
Success -->|yes| Notify[Send notification 🔔]
Notify --> Done([Complete])
Reject --> Done
Deny --> Done
```
"""#
),
Diagram(
id: "sequence-stress",
heading: "Sequence",
markdown: #"""
```mermaid
sequenceDiagram
Alice->>+John: Hello John, how are you?
Note over Alice,John: A typical interaction
alt is sick
John->>Alice: Not so good
Note right of John: Needs rest
else is well
John-->>-Alice: Feeling fresh like a daisy
Note left of Alice: All good
end
```
"""#
),
]
private let themeID: ThemeID
init() {
themeID = ProcessInfo.processInfo.environment["SCREENSHOT_COLOR_SCHEME"] == "light"
? .light
: .dark
ThemeRuntimeState.setThemeID(themeID)
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 16) {
Text("Mermaid shared trunks and responsive sequence")
.font(.headline)
.foregroundStyle(.themeFg)
Text("Dense fan-out/fan-in, direct subgraph entry, and two-participant sequence stress")
.font(.caption)
.foregroundStyle(.themeComment)
ForEach(Self.diagrams) { diagram in
Text(diagram.heading)
.font(.headline)
.foregroundStyle(.themeFg)
MarkdownContentViewWrapper(content: diagram.markdown, renderingMode: .export)
.frame(maxWidth: .infinity, alignment: .leading)
}
}
.padding(20)
.accessibilityElement(children: .contain)
.accessibilityIdentifier("mermaid.routing.preview.content")
}
.background(Color.themeBg.ignoresSafeArea())
.preferredColorScheme(themeID == .light ? .light : .dark)
.accessibilityIdentifier("screenshot.ready")
}
}
#endif