# Data Model: Área do Cliente (Feature 006)

**Date**: 2026-04-13
**Depends On**: Feature 005 — `client_users` table (ClientUser model)

---

## Entidades Novas

### SavedProperty

| Coluna | Tipo SQLAlchemy | Nullable | Restrições |
|--------|----------------|----------|------------|
| `id` | `UUID(as_uuid=True)` | NOT NULL | PK, default=uuid4 |
| `user_id` | `UUID(as_uuid=True)` | NOT NULL | FK → `client_users.id` ON DELETE CASCADE |
| `property_id` | `UUID(as_uuid=True)` | NULL | FK → `properties.id` ON DELETE SET NULL |
| `created_at` | `DateTime` | NOT NULL | server_default=now() |

**Unique constraint**: `(user_id, property_id)` — `uq_saved_property_user_property`

**Relacionamentos**:
- `user` → ClientUser (lazy="joined")
- `property` → Property (lazy="joined") — usado para retornar detalhes do imóvel na rota favorites

**Lógica de remoção**: se o imóvel for deletado (`ON DELETE SET NULL`), `property_id` vira NULL; o registro SavedProperty é mantido para não perder histórico. A rota GET /me/favorites filtra registros onde `property.is_active = True` ou exibe badge "Imóvel indisponível".

---

### VisitRequest

| Coluna | Tipo SQLAlchemy | Nullable | Restrições |
|--------|----------------|----------|------------|
| `id` | `UUID(as_uuid=True)` | NOT NULL | PK, default=uuid4 |
| `user_id` | `UUID(as_uuid=True)` | NULL | FK → `client_users.id` ON DELETE SET NULL |
| `property_id` | `UUID(as_uuid=True)` | NULL | FK → `properties.id` ON DELETE SET NULL |
| `message` | `Text` | NOT NULL | — |
| `status` | `VARCHAR(20)` | NOT NULL | default=`'pending'`; valores: `pending`, `confirmed`, `cancelled`, `completed` |
| `scheduled_at` | `DateTime` | NULL | Preenchido pelo admin ao confirmar |
| `created_at` | `DateTime` | NOT NULL | server_default=now() |

**Relacionamentos**:
- `user` → ClientUser (lazy="select")
- `property` → Property (lazy="joined") — para retornar PropertyBrief embutido

**Transições de status**:
```
pending → confirmed (admin, com scheduled_at)
pending → cancelled (admin)
confirmed → completed (admin)
confirmed → cancelled (admin)
```
*(Transições não são validadas em código no MVP — qualquer valor do enum é aceito via API admin)*

---

### Boleto

| Coluna | Tipo SQLAlchemy | Nullable | Restrições |
|--------|----------------|----------|------------|
| `id` | `UUID(as_uuid=True)` | NOT NULL | PK, default=uuid4 |
| `user_id` | `UUID(as_uuid=True)` | NULL | FK → `client_users.id` ON DELETE SET NULL |
| `property_id` | `UUID(as_uuid=True)` | NULL | FK → `properties.id` ON DELETE SET NULL |
| `description` | `String(200)` | NOT NULL | — |
| `amount` | `Numeric(12, 2)` | NOT NULL | — |
| `due_date` | `Date` | NOT NULL | — |
| `status` | `VARCHAR(20)` | NOT NULL | default=`'pending'`; valores: `pending`, `paid`, `overdue` |
| `url` | `String(500)` | NULL | Link externo do boleto/PDF |
| `created_at` | `DateTime` | NOT NULL | server_default=now() |

**Relacionamentos**:
- `user` → ClientUser (lazy="select")
- `property` → Property (lazy="joined") — para exibir imóvel vinculado na listagem

---

## Entidades Existentes com Impacto

### ClientUser (Feature 005 — pré-requisito)

Nenhuma alteração de schema. Relacionamentos inversos adicionados opcionalmente:
```python
saved_properties = db.relationship("SavedProperty", backref="user", ...)  # opcional
visit_requests   = db.relationship("VisitRequest", ...)                    # opcional
boletos          = db.relationship("Boleto", ...)                          # opcional
```
*(Relacionamentos inversos são adicionados nos novos modelos via `backref`, não em ClientUser diretamente)*

### Property (existente)

Nenhuma alteração de schema. Relacionamentos inversos são implícitos via `backref` nos novos modelos.

---

## Migração Alembic

Nome do arquivo: `xxxx_add_saved_properties_visit_requests_boletos.py`

```sql
-- saved_properties
CREATE TABLE saved_properties (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES client_users(id) ON DELETE CASCADE,
    property_id UUID REFERENCES properties(id) ON DELETE SET NULL,
    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
    CONSTRAINT uq_saved_property_user_property UNIQUE (user_id, property_id)
);

-- visit_requests
CREATE TABLE visit_requests (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID REFERENCES client_users(id) ON DELETE SET NULL,
    property_id UUID REFERENCES properties(id) ON DELETE SET NULL,
    message TEXT NOT NULL,
    status VARCHAR(20) NOT NULL DEFAULT 'pending',
    scheduled_at TIMESTAMP,
    created_at TIMESTAMP NOT NULL DEFAULT NOW()
);

-- boletos
CREATE TABLE boletos (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID REFERENCES client_users(id) ON DELETE SET NULL,
    property_id UUID REFERENCES properties(id) ON DELETE SET NULL,
    description VARCHAR(200) NOT NULL,
    amount NUMERIC(12, 2) NOT NULL,
    due_date DATE NOT NULL,
    status VARCHAR(20) NOT NULL DEFAULT 'pending',
    url VARCHAR(500),
    created_at TIMESTAMP NOT NULL DEFAULT NOW()
);
```

**Downgrade**: `DROP TABLE boletos; DROP TABLE visit_requests; DROP TABLE saved_properties;`

---

## Schemas Pydantic (backend/app/schemas/client_area.py)

### Saída

```python
class PropertyBrief(BaseModel):
    id: UUID
    title: str
    slug: str
    model_config = ConfigDict(from_attributes=True)

class SavedPropertyOut(BaseModel):
    property: PropertyDetailOut  # reutiliza schema existente de property.py
    created_at: datetime
    model_config = ConfigDict(from_attributes=True)

class VisitRequestOut(BaseModel):
    id: UUID
    property: PropertyBrief | None
    message: str
    status: str
    scheduled_at: datetime | None
    created_at: datetime
    model_config = ConfigDict(from_attributes=True)

class BoletoOut(BaseModel):
    id: UUID
    description: str
    amount: Decimal
    due_date: date
    status: str
    url: str | None
    model_config = ConfigDict(from_attributes=True)
```

### Entrada

```python
class FavoriteIn(BaseModel):
    property_id: UUID

class VisitStatusIn(BaseModel):
    status: Literal["pending", "confirmed", "cancelled", "completed"]
    scheduled_at: datetime | None = None

class BoletoCreateIn(BaseModel):
    user_id: UUID
    property_id: UUID | None = None
    description: str
    amount: Decimal
    due_date: date
    url: str | None = None
```

---

## Tipos TypeScript (frontend/src/types/clientArea.ts)

```typescript
export interface VisitRequest {
  id: string;
  property: { id: string; title: string; slug: string } | null;
  message: string;
  status: "pending" | "confirmed" | "cancelled" | "completed";
  scheduled_at: string | null;
  created_at: string;
}

export interface Boleto {
  id: string;
  description: string;
  amount: number;
  due_date: string;
  status: "pending" | "paid" | "overdue";
  url: string | null;
}

export interface ComparisonState {
  properties: Property[];  // max 3 — Property importado de types/property.ts
}
```