107 lines
5.2 KiB
Markdown
107 lines
5.2 KiB
Markdown
---
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name: semantics-frontend
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description: Core protocol for Svelte 5 (Runes) Components, UX State Machines, and Visual-Interactive Validation.
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---
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# [DEF:Std:Semantics:Frontend]
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# @COMPLEXITY: 5
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# @PURPOSE: Canonical GRACE-Poly protocol for Svelte 5 (Runes) Components, UX State Machines, and Project UI Architecture.
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# @RELATION: DEPENDS_ON ->[Std:Semantics:Core]
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# @INVARIANT: Frontend components MUST be verifiable by an automated GUI Judge Agent (e.g., Playwright).
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# @INVARIANT: Use Tailwind CSS exclusively. Native `fetch` is forbidden.
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## 0. SVELTE 5 PARADIGM & UX PHILOSOPHY
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- **STRICT RUNES ONLY:** You MUST use Svelte 5 Runes for reactivity: `$state()`, `$derived()`, `$effect()`, `$props()`, `$bindable()`.
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- **FORBIDDEN SYNTAX:** Do NOT use `export let`, `on:event` (use `onclick`), or the legacy `$:` reactivity.
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- **UX AS A STATE MACHINE:** Every component is a Finite State Machine (FSM). You MUST declare its visual states in the contract BEFORE writing implementation.
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- **RESOURCE-CENTRIC:** Navigation and actions revolve around Resources. Every action MUST be traceable.
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## I. PROJECT ARCHITECTURAL INVARIANTS
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You are bound by strict repository-level design rules. Violating these causes instant PR rejection.
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1. **Styling:** Tailwind CSS utility classes are MANDATORY. Minimize scoped `<style>`. If custom CSS is absolutely necessary, use `@apply` directives.
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2. **Localization:** All user-facing text MUST use the `$t` store from `src/lib/i18n`. No hardcoded UI strings.
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3. **API Layer:** You MUST use the internal `requestApi` / `fetchApi` wrappers. Using native `fetch()` is a fatal violation.
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## II. UX CONTRACTS (STRICT UI BEHAVIOR)
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Every component MUST define its behavioral contract in the header.
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- **`@UX_STATE:`** Maps FSM state names to visual behavior.
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*Example:* `@UX_STATE: Loading -> Spinner visible, btn disabled, aria-busy=true`.
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- **`@UX_FEEDBACK:`** Defines external system reactions (Toast, Shake, RedBorder).
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- **`@UX_RECOVERY:`** Defines the user's recovery path from errors (e.g., `Retry button`, `Clear Input`).
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- **`@UX_REACTIVITY:`** Explicitly declares the state source.
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*Example:* `@UX_REACTIVITY: Props -> $props(), LocalState -> $state(...)`.
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- **`@UX_TEST:`** Defines the interaction scenario for the automated Judge Agent.
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*Example:* `@UX_TEST: Idle -> {click: submit, expected: Loading}`.
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## III. STATE MANAGEMENT & STORE TOPOLOGY
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- **Subscription:** Use the `$` prefix for reactive store access (e.g., `$sidebarStore`).
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- **Graph Linkage:** Whenever a component reads or writes to a global store, you MUST declare it in the `[DEF]` header metadata using:
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`@RELATION: BINDS_TO -> [Store_ID]`
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## IV. IMPLEMENTATION & ACCESSIBILITY (A11Y)
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1. **Event Handling:** Use native attributes (e.g., `onclick={handler}`).
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2. **Transitions:** Use Svelte's built-in transitions for UI state changes to ensure smooth UX.
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3. **Async Logic:** Any async task (API calls) MUST be handled within a `try/catch` block that explicitly triggers an `@UX_STATE` transition to `Error` on failure and provides `@UX_FEEDBACK` (e.g., Toast).
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4. **A11Y:** Ensure proper ARIA roles (`aria-busy`, `aria-invalid`) and keyboard navigation. Use semantic HTML (`<nav>`, `<main>`).
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## V. LOGGING (MOLECULAR TOPOLOGY FOR UI)
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Frontend logging bridges the gap between your logic and the Judge Agent's vision system.
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- **[EXPLORE]:** Log branching user paths or caught UI errors.
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- **[REASON]:** Log the intent *before* an API invocation.
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- **[REFLECT]:** Log visual state updates (e.g., "Toast displayed", "Drawer opened").
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- **Syntax:** `console.info("[ComponentID][MARKER] Message", {extra_data})` — Prefix MUST be manually applied.
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## VI. CANONICAL SVELTE 5 COMPONENT TEMPLATE
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You MUST strictly adhere to this AST boundary format:
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```html
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<!-- [DEF:ComponentName:Component] -->
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<script>
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/**
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* @COMPLEXITY: [1-5]
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* @PURPOSE: Brief description of the component purpose.
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* @LAYER: UI
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* @SEMANTICS: list, of, keywords
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* @RELATION: DEPENDS_ON -> [OtherComponent]
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* @RELATION: BINDS_TO -> [GlobalStore]
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*
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* @UX_STATE: Idle -> Default view.
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* @UX_STATE: Loading -> Button disabled, spinner active.
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* @UX_FEEDBACK: Toast notification on success/error.
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* @UX_REACTIVITY: Props -> $props(), State -> $state().
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* @UX_TEST: Idle -> {click: action, expected: Loading}
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*/
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import { fetchApi } from "$lib/api";
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import { t } from "$lib/i18n";
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import { taskDrawerStore } from "$lib/stores";
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let { resourceId } = $props();
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let isLoading = $state(false);
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async function handleAction() {
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isLoading = true;
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console.info("[ComponentName][REASON] Opening task drawer for resource", { resourceId });
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try {
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taskDrawerStore.open(resourceId);
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await fetchApi(`/api/resource/${resourceId}/process`);
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console.info("[ComponentName][REFLECT] Process completed successfully");
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} catch (e) {
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console.error("[ComponentName][EXPLORE] Action failed", { error: e });
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} finally {
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isLoading = false;
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}
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}
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</script>
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<div class="flex flex-col p-4 bg-white rounded-lg shadow-md">
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<button
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class="btn-primary"
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onclick={handleAction}
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disabled={isLoading}
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aria-busy={isLoading}
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>
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{#if isLoading} <span class="spinner"></span> {/if}
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{$t('actions.start')}
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</button>
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</div>
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<!--[/DEF:ComponentName:Component] --> |