---
phase: 03-wizard-ui
plan: "02"
type: execute
wave: 2
depends_on:
  - "03-01"
files_modified:
  - src/components/ui/BackendCard.tsx
  - src/components/ui/PasswordField.tsx
  - src/components/ui/FieldRenderer.tsx
  - src/components/wizard/AzureAuthToggle.tsx
autonomous: true
requirements:
  - BACK-01
  - BACK-02
  - BACK-03

must_haves:
  truths:
    - "BackendCard renders a clickable card with backend name and calls onClick when clicked"
    - "PasswordField renders a password input with a show/hide eye toggle button"
    - "FieldRenderer renders the correct input type for text, password, select, and toggle FieldDef entries"
    - "AzureAuthToggle renders a segmented SAS/Key toggle, shows the active field, and defaults to SAS"
  artifacts:
    - path: "src/components/ui/BackendCard.tsx"
      provides: "Clickable backend selection card"
      exports: ["BackendCard"]
    - path: "src/components/ui/PasswordField.tsx"
      provides: "Password input with show/hide toggle"
      exports: ["PasswordField"]
    - path: "src/components/ui/FieldRenderer.tsx"
      provides: "Single FieldDef renderer for registry-driven forms"
      exports: ["FieldRenderer"]
    - path: "src/components/wizard/AzureAuthToggle.tsx"
      provides: "Azure SAS vs Access Key segmented toggle"
      exports: ["AzureAuthToggle"]
  key_links:
    - from: "src/components/wizard/AzureAuthToggle.tsx"
      to: "src/schemas/registry.ts"
      via: "renders key and sas_url FieldDef entries via PasswordField"
      pattern: "PasswordField"
    - from: "src/components/ui/FieldRenderer.tsx"
      to: "src/schemas/registry.ts"
      via: "accepts FieldDef and renders the correct input element"
      pattern: "FieldDef"
---

<objective>
Create the four reusable UI atom components that the wizard step components depend on: BackendCard, PasswordField, FieldRenderer, and AzureAuthToggle.

Purpose: Establish shared building blocks so Plans 03 and 04 can implement their step components without duplicating input logic.
Output: Four new component files in src/components/ui/ and src/components/wizard/.
</objective>

<execution_context>
@C:/Users/SebastienQUEROL/.claude/get-shit-done/workflows/execute-plan.md
@C:/Users/SebastienQUEROL/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/phases/03-wizard-ui/03-CONTEXT.md
@.planning/phases/03-wizard-ui/03-RESEARCH.md

<interfaces>
<!-- Key types and contracts the executor needs. Extracted from codebase. -->

From src/schemas/registry.ts:
```typescript
export type BackendType = 'azureblob' | 's3' | 's3-compatible';

export interface FieldDef {
  key: string;           // MUST match rclone config key exactly (snake_case)
  label: string;
  inputType: 'text' | 'password' | 'select' | 'toggle';
  required: boolean;
  placeholder?: string;
  helpText?: string;
  options?: { value: string; label: string }[]; // for inputType: 'select'
}

export const BACKEND_REGISTRY: Record<BackendType, FieldDef[]> = {
  azureblob: [
    { key: 'account',  label: 'Storage Account Name', inputType: 'text',     required: true  },
    { key: 'key',      label: 'Access Key',            inputType: 'password', required: false },
    { key: 'sas_url',  label: 'SAS URL',               inputType: 'password', required: false },
  ],
  s3: [
    { key: 'provider',          label: 'Provider',         inputType: 'select',   required: true  },
    { key: 'access_key_id',     label: 'Access Key ID',    inputType: 'text',     required: true  },
    { key: 'secret_access_key', label: 'Secret Access Key',inputType: 'password', required: true  },
    { key: 'region',            label: 'Region',           inputType: 'text',     required: true  },
  ],
  's3-compatible': [
    { key: 'provider',          label: 'Provider',         inputType: 'select',   required: true  },
    { key: 'access_key_id',     label: 'Access Key ID',    inputType: 'text',     required: true  },
    { key: 'secret_access_key', label: 'Secret Access Key',inputType: 'password', required: true  },
    { key: 'endpoint',          label: 'Endpoint URL',     inputType: 'text',     required: true  },
    { key: 'region',            label: 'Region',           inputType: 'text',     required: false },
  ],
};
```

From react-hook-form (installed as react-hook-form ^7.72.0):
```typescript
// UseFormRegister and FieldError types used in FieldRenderer and PasswordField
import type { UseFormRegister, FieldError } from 'react-hook-form';
```
</interfaces>
</context>

<tasks>

<task type="auto">
  <name>Task 1: Create BackendCard and PasswordField UI atoms</name>
  <files>src/components/ui/BackendCard.tsx, src/components/ui/PasswordField.tsx</files>
  <action>
    Create `src/components/ui/` directory and the two simplest atom components.

    **src/components/ui/BackendCard.tsx**
    A clickable card for the backend selection grid. Props: `name` (display string), `description` (short subtitle), `onClick` (void callback), `selected` (boolean for visual highlight).

    ```tsx
    import type { ButtonHTMLAttributes } from 'react';

    interface BackendCardProps extends Omit<ButtonHTMLAttributes<HTMLButtonElement>, 'onClick'> {
      name: string;
      description: string;
      selected?: boolean;
      onClick: () => void;
    }

    export function BackendCard({ name, description, selected = false, onClick, ...rest }: BackendCardProps) {
      return (
        <button
          type="button"
          onClick={onClick}
          data-selected={selected}
          className={[
            'flex flex-col items-start gap-1 rounded-lg border-2 p-4 text-left transition-colors',
            selected
              ? 'border-blue-600 bg-blue-50'
              : 'border-gray-200 bg-white hover:border-blue-400 hover:bg-gray-50',
          ].join(' ')}
          {...rest}
        >
          <span className="font-semibold text-gray-900">{name}</span>
          <span className="text-sm text-gray-500">{description}</span>
        </button>
      );
    }
    ```

    **src/components/ui/PasswordField.tsx**
    Password input with a show/hide eye toggle. Per locked decision: all password-type fields (access key, SAS URL, S3 secret) have a show/hide toggle. Per project instructions: each field has its own independent visibility state.

    Props: `id` (string), `label` (string), `error` (FieldError | undefined), `registration` (return value of react-hook-form `register()`), `placeholder` (optional).

    ```tsx
    import { useState } from 'react';
    import type { FieldError, UseFormRegisterReturn } from 'react-hook-form';

    interface PasswordFieldProps {
      id: string;
      label: string;
      error?: FieldError;
      registration: UseFormRegisterReturn;
      placeholder?: string;
      helpText?: string;
    }

    export function PasswordField({ id, label, error, registration, placeholder, helpText }: PasswordFieldProps) {
      const [show, setShow] = useState(false);
      return (
        <div className="flex flex-col gap-1">
          <label htmlFor={id} className="text-sm font-medium text-gray-700">
            {label}
          </label>
          <div className="relative">
            <input
              id={id}
              type={show ? 'text' : 'password'}
              placeholder={placeholder}
              className={[
                'w-full rounded-md border px-3 py-2 pr-10 text-sm focus:outline-none focus:ring-2',
                error ? 'border-red-500 focus:ring-red-300' : 'border-gray-300 focus:ring-blue-300',
              ].join(' ')}
              {...registration}
            />
            <button
              type="button"
              onClick={() => setShow(v => !v)}
              aria-label={show ? 'Hide' : 'Show'}
              className="absolute right-2 top-1/2 -translate-y-1/2 text-gray-400 hover:text-gray-700"
            >
              {show ? '🙈' : '👁'}
            </button>
          </div>
          {helpText && !error && <p className="text-xs text-gray-500">{helpText}</p>}
          {error && <p className="text-xs text-red-600">{error.message}</p>}
        </div>
      );
    }
    ```
  </action>
  <verify>
    <automated>npx vitest run --reporter=verbose 2>&1 | tail -20</automated>
  </verify>
  <done>BackendCard.tsx and PasswordField.tsx exist with correct exports. Vitest still reports RED (test stubs still fail — components exist but tests have expect.fail).</done>
</task>

<task type="auto">
  <name>Task 2: Create FieldRenderer and AzureAuthToggle</name>
  <files>src/components/ui/FieldRenderer.tsx, src/components/wizard/AzureAuthToggle.tsx</files>
  <action>
    **src/components/ui/FieldRenderer.tsx**
    Renders a single `FieldDef` from the BACKEND_REGISTRY as the appropriate input element. This is the registry-driven form engine — no hardcoded per-backend JSX is allowed anywhere else.

    The `provider` select field (s3 and s3-compatible backends) has only one option — hide it from the user and auto-register it with its default value. This follows the recommendation from 03-RESEARCH.md open question #2.

    Props: `field` (FieldDef), `register` (UseFormRegister<any>), `error` (FieldError | undefined), `defaultValue` (string | undefined — used to auto-register hidden fields).

    ```tsx
    import type { UseFormRegister, FieldError } from 'react-hook-form';
    import type { FieldDef } from '../../schemas/registry';
    import { PasswordField } from './PasswordField';

    interface FieldRendererProps {
      field: FieldDef;
      register: UseFormRegister<any>;
      error?: FieldError;
    }

    export function FieldRenderer({ field, register, error }: FieldRendererProps) {
      // provider field: single-option select — hide from UI, auto-register with default value
      if (field.key === 'provider' && field.options?.length === 1) {
        return (
          <input
            type="hidden"
            value={field.options[0].value}
            {...register(field.key)}
          />
        );
      }

      if (field.inputType === 'password') {
        return (
          <PasswordField
            id={field.key}
            label={field.label}
            error={error}
            registration={register(field.key)}
            placeholder={field.placeholder}
            helpText={field.helpText}
          />
        );
      }

      if (field.inputType === 'select' && field.options) {
        return (
          <div className="flex flex-col gap-1">
            <label htmlFor={field.key} className="text-sm font-medium text-gray-700">
              {field.label}
              {field.required && <span className="ml-1 text-red-500">*</span>}
            </label>
            <select
              id={field.key}
              className={[
                'w-full rounded-md border px-3 py-2 text-sm focus:outline-none focus:ring-2',
                error ? 'border-red-500 focus:ring-red-300' : 'border-gray-300 focus:ring-blue-300',
              ].join(' ')}
              {...register(field.key)}
            >
              {field.options.map(opt => (
                <option key={opt.value} value={opt.value}>{opt.label}</option>
              ))}
            </select>
            {field.helpText && !error && <p className="text-xs text-gray-500">{field.helpText}</p>}
            {error && <p className="text-xs text-red-600">{error.message}</p>}
          </div>
        );
      }

      // text (default)
      return (
        <div className="flex flex-col gap-1">
          <label htmlFor={field.key} className="text-sm font-medium text-gray-700">
            {field.label}
            {field.required && <span className="ml-1 text-red-500">*</span>}
          </label>
          <input
            id={field.key}
            type="text"
            placeholder={field.placeholder}
            className={[
              'w-full rounded-md border px-3 py-2 text-sm focus:outline-none focus:ring-2',
              error ? 'border-red-500 focus:ring-red-300' : 'border-gray-300 focus:ring-blue-300',
            ].join(' ')}
            {...register(field.key)}
          />
          {field.helpText && !error && <p className="text-xs text-gray-500">{field.helpText}</p>}
          {error && <p className="text-xs text-red-600">{error.message}</p>}
        </div>
      );
    }
    ```

    **src/components/wizard/AzureAuthToggle.tsx**
    Azure-specific segmented control that toggles between "SAS URL" and "Access Key". Per locked decision:
    - Default method: SAS URL
    - Switching PRESERVES both field values (both are always registered in react-hook-form)
    - Only the active field is displayed
    - Both values flow into `remote.params` on form submit (generator strips inactive one)

    Props: `register` (UseFormRegister<any>), `errors` (object with key and sas_url FieldError entries).

    ```tsx
    import { useState } from 'react';
    import type { UseFormRegister, FieldError } from 'react-hook-form';
    import { PasswordField } from '../ui/PasswordField';

    type AuthMethod = 'sas' | 'key';

    interface AzureAuthToggleProps {
      register: UseFormRegister<any>;
      errors: {
        key?: FieldError;
        sas_url?: FieldError;
      };
    }

    export function AzureAuthToggle({ register, errors }: AzureAuthToggleProps) {
      const [authMethod, setAuthMethod] = useState<AuthMethod>('sas');

      return (
        <div className="flex flex-col gap-3">
          {/* Segmented control */}
          <div className="flex rounded-md border border-gray-300 overflow-hidden">
            <button
              type="button"
              onClick={() => setAuthMethod('sas')}
              className={[
                'flex-1 py-1.5 text-sm font-medium transition-colors',
                authMethod === 'sas'
                  ? 'bg-blue-600 text-white'
                  : 'bg-white text-gray-700 hover:bg-gray-50',
              ].join(' ')}
            >
              SAS URL
            </button>
            <button
              type="button"
              onClick={() => setAuthMethod('key')}
              className={[
                'flex-1 py-1.5 text-sm font-medium transition-colors',
                authMethod === 'key'
                  ? 'bg-blue-600 text-white'
                  : 'bg-white text-gray-700 hover:bg-gray-50',
              ].join(' ')}
            >
              Access Key
            </button>
          </div>

          {/* Both fields always registered — only active one visible */}
          <div className={authMethod === 'sas' ? 'block' : 'hidden'}>
            <PasswordField
              id="sas_url"
              label="SAS URL"
              error={errors.sas_url}
              registration={register('sas_url')}
              placeholder="https://mystorageaccount.blob.core.windows.net/?sv=..."
              helpText="Full SAS URL including account and container"
            />
          </div>
          <div className={authMethod === 'key' ? 'block' : 'hidden'}>
            <PasswordField
              id="key"
              label="Access Key"
              error={errors.key}
              registration={register('key')}
              helpText="Base64-encoded storage account key"
            />
          </div>
        </div>
      );
    }
    ```

    CRITICAL: Using CSS `hidden` class (not conditional rendering) ensures both fields are registered with react-hook-form and their values are preserved when toggling. Do not use `{authMethod === 'sas' && <PasswordField ... />}` — that unmounts the hidden field and react-hook-form loses its value.
  </action>
  <verify>
    <automated>npx vitest run --reporter=verbose 2>&1 | tail -20</automated>
  </verify>
  <done>
    FieldRenderer.tsx and AzureAuthToggle.tsx exist with correct exports. All four atoms exist. Vitest still RED (stubs still have expect.fail — implementation tasks come in Plans 03 and 04).
  </done>
</task>

</tasks>

<verification>
Run after both tasks complete:
```bash
npx vitest run --reporter=verbose 2>&1
```
Vitest runs cleanly (no crashes). Tests remain RED from stubs. All four atom files exist with named exports.

Check exports:
```bash
grep -n "^export" src/components/ui/BackendCard.tsx src/components/ui/PasswordField.tsx src/components/ui/FieldRenderer.tsx src/components/wizard/AzureAuthToggle.tsx
```
</verification>

<success_criteria>
- BackendCard, PasswordField, FieldRenderer, AzureAuthToggle all export their named components
- FieldRenderer hides the `provider` field for single-option selects and auto-registers the default value
- AzureAuthToggle registers BOTH `key` and `sas_url` with react-hook-form regardless of active method (uses CSS show/hide, not conditional rendering)
- PasswordField has per-instance show/hide state (not a global toggle)
- No new Tailwind config file created (Tailwind v4 CSS-first — all styles use utility classes directly)
</success_criteria>

<output>
After completion, create `.planning/phases/03-wizard-ui/03-02-SUMMARY.md`
</output>