# Hackathon Backoffice API Contract

## GET /api/v1/admin/dashboard

### Purpose

Single endpoint delivering aggregated metrics for the IMPHNEN x Kolosal.ai Hackathon dashboard.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`
- 401 if unauthenticated, 403 if authenticated but lacking required scope.

### Examples

```
GET /api/v1/admin/dashboard
```

### Response Schema

```jsonc
{
  "data": {
    "total_participants": 1261,
    "total_teams": 206,
    "total_submissions": 0 // Total project submitted
  }
}
```

### Field Types

| Path                      | Type    | Notes                 |
| ------------------------- | ------- | --------------------- |
| `data.total_participants` | integer | >= 0                  |
| `data.total_teams`        | integer | >= 0                  |
| `data.total_submissions`  | integer | <= `data.total_teams` |

### Errors

| Status | Code             | Message                       | Notes                 |
| ------ | ---------------- | ----------------------------- | --------------------- |
| 401    | `unauthorized`   | `authentication required`     | Missing/invalid token |
| 403    | `forbidden`      | `insufficient permissions`    | Lacks required scope  |
| 429    | `rate_limited`   | `too many dashboard requests` | Rate limiting         |
| 500    | `internal_error` | `unexpected server error`     | Unhandled exception   |

---

## GET /api/v1/admin/users

### Purpose

Retrieve paginated list of hackathon participants with filtering, searching, and sorting capabilities for backoffice user management.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`
- 401 if unauthenticated, 403 if authenticated but lacking required scope.

### Query Parameters

| Parameter    | Type    | Required | Default      | Description                                                   |
| ------------ | ------- | -------- | ------------ | ------------------------------------------------------------- |
| `page`       | integer | No       | 1            | Page number (1-based)                                         |
| `limit`      | integer | No       | 10           | Items per page (1-100)                                        |
| `search`     | string  | No       | -            | Search by name or location (case-insensitive)                 |
| `status`     | string  | No       | `all`        | Filter by status: `all`, `active`, `inactive`                 |
| `location`   | string  | No       | `all`        | Filter by location or `all`                                   |
| `skills`     | string  | No       | -            | Comma-separated skill filters                                 |
| `sort_by`    | string  | No       | `created_at` | Sort field: `fullname`, `location`, `is_active`, `created_at` |
| `sort_order` | string  | No       | `desc`       | Sort order: `asc`, `desc`                                     |

### Examples

```
GET /api/v1/admin/users
GET /api/v1/admin/users?page=2&limit=10
GET /api/v1/admin/users?search=john&status=active
GET /api/v1/admin/users?location=Jakarta&skills=Frontend Developer,UI/UX Designer
GET /api/v1/admin/users?sort_by=fullname&sort_order=asc
```

### Response Schema

```jsonc
{
  "data": {
    "users": [
      {
        "id": "550e8400-e29b-41d4-a716-446655440000",
        "avatar": "https://example.com/avatars/user1.jpg", // Optional
        "fullname": "Budi Santoso",
        "bio": "Passionate developer with 5+ years experience", // Optional
        "location": "Jakarta",
        "is_active": true,
        "skills": ["Frontend Developer", "UI/UX Designer"], // Optional
        "created_at": "2024-11-15T08:30:00Z",
        "updated_at": "2024-11-30T14:22:00Z"
      }
      // ... more users
    ],
    "pagination": {
      "current_page": 1,
      "total_pages": 15,
      "total_items": 287,
      "items_per_page": 20,
      "has_next": true,
      "has_prev": false
    },
    "filters": {
      "available_locations": ["Jakarta", "Bandung", "Surabaya", "Medan", "Yogyakarta"],
      "available_skills": ["Frontend Developer", "Backend Developer", "Full Stack Developer", "DevOps Engineer", "UI/UX Designer", "Product Manager", "Data Scientist", "Mobile Developer"]
    }
  }
}
```

### Field Types

| Path                      | Type    | Notes                          |
| ------------------------- | ------- | ------------------------------ |
| `data.users[].id`         | string  | UUID format                    |
| `data.users[].avatar`     | string  | URL, nullable                  |
| `data.users[].fullname`   | string  | Required                       |
| `data.users[].bio`        | string  | Optional, max 500 chars        |
| `data.users[].location`   | string  | Required, from predefined list |
| `data.users[].is_active`  | boolean | Account status                 |
| `data.users[].skills`     | array   | Array of skill strings         |
| `data.users[].created_at` | string  | ISO 8601 timestamp             |
| `data.users[].updated_at` | string  | ISO 8601 timestamp             |
| `data.pagination.*`       | integer | Pagination metadata            |

---

## GET /api/v1/admin/users/{user_id}

### Purpose

Retrieve detailed information for a specific user by ID.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `user_id` | string | Yes      | User UUID   |

### Examples

```
GET /api/v1/admin/users/550e8400-e29b-41d4-a716-446655440000
```

### Response Schema

```jsonc
{
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "avatar": "https://example.com/avatars/user1.jpg",
    "fullname": "Budi Santoso",
    "bio": "Passionate developer with 5+ years experience",
    "location": "Jakarta",
    "is_active": true,
    "skills": ["Frontend Developer", "UI/UX Designer"],
    "created_at": "2024-11-15T08:30:00Z",
    "updated_at": "2024-11-30T14:22:00Z"
  }
}
```

---

## POST /api/v1/admin/users

### Purpose

Create a new user account in the hackathon system.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Request Body Schema

```jsonc
{
  "fullname": "Jane Doe", // Required, 1-100 chars
  "bio": "Experienced developer", // Optional, max 500 chars
  "location": "Jakarta", // Required, from predefined list
  "is_active": true, // Required, boolean
  "skills": ["Backend Developer"], // Optional, array of valid skills
  "avatar": "https://example.com/images/..." // Optional, URL
}
```

### Examples

```
POST /api/v1/admin/users
Content-Type: application/json

{
  "fullname": "Jane Doe",
  "bio": "Experienced developer passionate about AI and machine learning",
  "location": "Jakarta",
  "is_active": true,
  "skills": ["Backend Developer", "Data Scientist"],
  "avatar": "https://example.com/images/..."
}
```

### Response Schema

```jsonc
{
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440001",
    "avatar": "https://example.com/avatars/generated_url.jpg",
    "fullname": "Jane Doe",
    "bio": "Experienced developer passionate about AI and machine learning",
    "location": "Jakarta",
    "is_active": true,
    "skills": ["Backend Developer", "Data Scientist"],
    "created_at": "2024-12-01T10:30:00Z",
    "updated_at": "2024-12-01T10:30:00Z"
  }
}
```

---

## PUT /api/v1/admin/users/{user_id}

### Purpose

Update an existing user's profile information.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `user_id` | string | Yes      | User UUID   |

### Request Body Schema

```jsonc
{
  "fullname": "Jane Smith", // Optional, 1-100 chars
  "bio": "Senior developer", // Optional, max 500 chars, null to clear
  "location": "Bandung", // Optional, from predefined list
  "is_active": false, // Optional, boolean
  "skills": ["Full Stack Developer"], // Optional, array of valid skills
  "avatar": "https://example.com/images/..." // Optional, URL, null to remove
}
```

### Examples

```
PUT /api/v1/admin/users/550e8400-e29b-41d4-a716-446655440000
Content-Type: application/json

{
  "fullname": "Jane Smith",
  "location": "Bandung",
  "is_active": false,
  "skills": ["Full Stack Developer", "Product Manager"]
}
```

### Response Schema

```jsonc
{
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "avatar": "https://example.com/avatars/user1.jpg",
    "fullname": "Jane Smith",
    "bio": "Experienced developer passionate about AI and machine learning",
    "location": "Bandung",
    "is_active": false,
    "skills": ["Full Stack Developer", "Product Manager"],
    "created_at": "2024-11-15T08:30:00Z",
    "updated_at": "2024-12-01T10:45:00Z"
  }
}
```

---

## DELETE /api/v1/admin/users/{user_id}

### Purpose

(Soft) Delete a user account from the hackathon system.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `user_id` | string | Yes      | User UUID   |

### Examples

```
DELETE /api/v1/admin/users/550e8400-e29b-41d4-a716-446655440000
```

### Response Schema

```jsonc
{
  "data": {
    "message": "User successfully deleted",
    "deleted_user_id": "550e8400-e29b-41d4-a716-446655440000",
    "deleted_at": "2024-12-01T10:50:00Z"
  }
}
```

---

## Common Error Responses

### User Management Endpoints

| Status | Code                  | Message                          | Notes                        |
| ------ | --------------------- | -------------------------------- | ---------------------------- |
| 400    | `validation_error`    | `Invalid request data`           | Field validation failures    |
| 401    | `unauthorized`        | `Authentication required`        | Missing/invalid token        |
| 403    | `forbidden`           | `Insufficient permissions`       | Lacks required scope         |
| 404    | `user_not_found`      | `User not found`                 | Invalid user ID              |
| 409    | `user_already_exists` | `User with email already exists` | Duplicate user creation      |
| 413    | `payload_too_large`   | `Avatar file too large`          | Avatar exceeds size limit    |
| 422    | `invalid_skill`       | `Invalid skill specified`        | Skill not in allowed list    |
| 422    | `invalid_location`    | `Invalid location specified`     | Location not in allowed list |
| 429    | `rate_limited`        | `Too many requests`              | Rate limiting                |
| 500    | `internal_error`      | `Unexpected server error`        | Unhandled exception          |

### Validation Error Details

```jsonc
{
  "error": {
    "code": "validation_error",
    "message": "Invalid request data",
    "details": [
      {
        "field": "fullname",
        "code": "required",
        "message": "Full name is required"
      },
      {
        "field": "location",
        "code": "invalid_choice",
        "message": "Location must be one of: Jakarta, Bandung, Surabaya, Medan, Yogyakarta"
      }
    ]
  }
}
```

## Rate Limiting

- **Dashboard**: 30 requests / minute / admin user
- **User Management**: 100 requests / minute / admin user
- **File Upload**: 10 avatar uploads / minute / admin user
- Return 429 with `Retry-After` header

## Avatar Handling

- **Supported formats**: JPEG, PNG, WebP
- **Max file size**: 5MB
- **Recommended dimensions**: 400x400px
- **Storage**: Uploaded avatars are processed and stored with generated URLs
- **URL response**: Always return publicly accessible HTTPS URLs

---

## GET /api/v1/admin/teams

### Purpose

Retrieve paginated list of hackathon teams with filtering, searching, and sorting capabilities for backoffice team management.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`
- 401 if unauthenticated, 403 if authenticated but lacking required scope.

### Query Parameters

| Parameter      | Type    | Required | Default      | Description                                                                              |
| -------------- | ------- | -------- | ------------ | ---------------------------------------------------------------------------------------- |
| `page`         | integer | No       | 1            | Page number (1-based)                                                                    |
| `limit`        | integer | No       | 10           | Items per page (1-100)                                                                   |
| `search`       | string  | No       | -            | Search by team name, city, or leader name (case-insensitive)                             |
| `visibility`   | string  | No       | `all`        | Filter by visibility: `all`, `public`, `private`                                         |
| `city`         | string  | No       | `all`        | Filter by city or `all`                                                                  |
| `submission`   | string  | No       | `all`        | Filter by submission status: `all`, `submitted`, `not_submitted`                         |
| `member_count` | string  | No       | `all`        | Filter by member count: `all`, `1`, `2`, `3`, `4`, `5`                                   |
| `sort_by`      | string  | No       | `created_at` | Sort field: `name`, `city`, `visibility`, `member_count`, `has_submission`, `created_at` |
| `sort_order`   | string  | No       | `desc`       | Sort order: `asc`, `desc`                                                                |

### Examples

```
GET /api/v1/admin/teams
GET /api/v1/admin/teams?page=2&limit=10
GET /api/v1/admin/teams?search=innovators&visibility=public
GET /api/v1/admin/teams?city=Jakarta&submission=submitted&member_count=3
GET /api/v1/admin/teams?sort_by=name&sort_order=asc
```

### Response Schema

```jsonc
{
  "data": {
    "teams": [
      {
        "id": "team-001",
        "name": "Team Innovators",
        "description": "Building innovative solutions for modern problems", // Optional
        "city": "Jakarta",
        "banner": "https://example.com/banners/team1.jpg", // Optional
        "logo": "https://example.com/logos/team1.jpg", // Optional
        "visibility": "public", // "public" | "private"
        "member_count": 3,
        "has_submission": true,
        "created_at": "2024-11-15T08:30:00Z",
        "updated_at": "2024-11-30T14:22:00Z",
        "leader_id": "leader-team-001",
        "members": [
          {
            "id": "member-team-001-0",
            "joined_at": "2024-11-15T08:30:00Z",
            "role": "leader", // "leader" | "member"
            "status": "accepted", // "pending" | "accepted" | "rejected"
            "team_id": "team-001",
            "user_id": "leader-team-001",
            "user": {
              "id": "leader-team-001",
              "avatar": "https://ui-avatars.com/api/?name=John+Doe", // Optional
              "bio": "Passionate developer with 5+ years experience", // Optional
              "created_at": "2024-10-01T08:30:00Z",
              "email": "john.doe@example.com",
              "fullname": "John Doe",
              "is_active": true,
              "location": "Jakarta",
              "phone_number": "+6281234567890", // Optional
              "skills": ["Frontend Developer", "UI/UX Designer"],
              "updated_at": "2024-11-30T14:22:00Z"
            }
          }
          // ... more members
        ]
      }
      // ... more teams
    ],
    "pagination": {
      "current_page": 1,
      "total_pages": 15,
      "total_items": 147,
      "items_per_page": 10,
      "has_next": true,
      "has_prev": false
    },
    "filters": {
      "available_cities": ["Jakarta", "Bandung", "Surabaya", "Medan", "Yogyakarta"],
      "available_skills": ["Frontend Developer", "Backend Developer", "Full Stack Developer", "DevOps Engineer", "UI/UX Designer", "Product Manager", "Data Scientist", "Mobile Developer"]
    }
  }
}
```

---

## GET /api/v1/admin/teams/{team_id}

### Purpose

Retrieve detailed information for a specific team by ID.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `team_id` | string | Yes      | Team ID     |

### Examples

```
GET /api/v1/admin/teams/team-001
```

### Response Schema

```jsonc
{
  "data": {
    "id": "team-001",
    "name": "Team Innovators",
    "description": "Building innovative solutions for modern problems",
    "city": "Jakarta",
    "banner": "https://example.com/banners/team1.jpg",
    "logo": "https://example.com/logos/team1.jpg",
    "visibility": "public",
    "member_count": 3,
    "has_submission": true,
    "created_at": "2024-11-15T08:30:00Z",
    "updated_at": "2024-11-30T14:22:00Z",
    "leader_id": "leader-team-001",
    "members": [
      {
        "id": "member-team-001-0",
        "joined_at": "2024-11-15T08:30:00Z",
        "role": "leader",
        "status": "accepted",
        "team_id": "team-001",
        "user_id": "leader-team-001",
        "user": {
          "id": "leader-team-001",
          "avatar": "https://ui-avatars.com/api/?name=John+Doe",
          "bio": "Passionate developer with 5+ years experience",
          "created_at": "2024-10-01T08:30:00Z",
          "email": "john.doe@example.com",
          "fullname": "John Doe",
          "is_active": true,
          "location": "Jakarta",
          "phone_number": "+6281234567890",
          "skills": ["Frontend Developer", "UI/UX Designer"],
          "updated_at": "2024-11-30T14:22:00Z"
        }
      }
      // ... all team members
    ]
  }
}
```

---

## POST /api/v1/admin/teams

### Purpose

Create a new team in the hackathon system.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Request Body Schema

```jsonc
{
  "name": "Team New Innovators", // Required, 1-100 chars
  "description": "Building next-gen solutions", // Optional, max 500 chars
  "city": "Jakarta", // Required, from predefined list
  "visibility": "public", // Required, "public" | "private"
  "leader_id": "user-123", // Required, existing user ID
  "banner": "https://example.com/banners/new.jpg", // Optional, URL
  "logo": "https://example.com/logos/new.jpg" // Optional, URL
}
```

### Response Schema

```jsonc
{
  "data": {
    "id": "team-new-001",
    "name": "Team New Innovators",
    "description": "Building next-gen solutions",
    "city": "Jakarta",
    "banner": "https://example.com/banners/new.jpg",
    "logo": "https://example.com/logos/new.jpg",
    "visibility": "public",
    "member_count": 1,
    "has_submission": false,
    "created_at": "2024-12-02T10:30:00Z",
    "updated_at": "2024-12-02T10:30:00Z",
    "leader_id": "user-123",
    "members": [
      {
        "id": "member-new-001-0",
        "joined_at": "2024-12-02T10:30:00Z",
        "role": "leader",
        "status": "accepted",
        "team_id": "team-new-001",
        "user_id": "user-123",
        "user": {
          "id": "user-123",
          "fullname": "John Doe",
          "email": "john.doe@example.com",
          "location": "Jakarta",
          "is_active": true,
          "skills": ["Frontend Developer"],
          "created_at": "2024-10-01T08:30:00Z",
          "updated_at": "2024-12-02T10:30:00Z"
        }
      }
    ]
  }
}
```

---

## PUT /api/v1/admin/teams/{team_id}

### Purpose

Update an existing team's information.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `team_id` | string | Yes      | Team ID     |

### Request Body Schema

```jsonc
{
  "name": "Team Updated Name", // Optional, 1-100 chars
  "description": "Updated description", // Optional, max 500 chars, null to clear
  "city": "Bandung", // Optional, from predefined list
  "visibility": "private", // Optional, "public" | "private"
  "banner": "https://example.com/banners/updated.jpg", // Optional, URL, null to remove
  "logo": "https://example.com/logos/updated.jpg" // Optional, URL, null to remove
}
```

### Response Schema

Same as GET /api/v1/admin/teams/{team_id} with updated values.

---

## DELETE /api/v1/admin/teams/{team_id}

### Purpose

Delete a team from the hackathon system.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `team_id` | string | Yes      | Team ID     |

### Response Schema

```jsonc
{
  "data": {
    "message": "Team successfully deleted",
    "deleted_team_id": "team-001",
    "deleted_at": "2024-12-02T10:50:00Z"
  }
}
```

---

## GET /api/v1/admin/teams/{team_id}/submission

### Purpose

Retrieve submission details for a specific team.

### Authentication & Authorization

- Requires admin (backoffice) scope: e.g. `role=admin`

### Path Parameters

| Parameter | Type   | Required | Description |
| --------- | ------ | -------- | ----------- |
| `team_id` | string | Yes      | Team ID     |

### Response Schema

```jsonc
{
  "data": {
    "team_id": "team-001",
    "team_name": "Team Innovators",
    "project_name": "EcoTrack - Smart Waste Management",
    "project_description": "An AI-powered waste management solution that helps cities optimize collection routes and reduce environmental impact.",
    "repository_url": "https://github.com/team-innovators/ecotrack",
    "demo_url": "https://ecotrack-demo.vercel.app",
    "presentation_url": "https://docs.google.com/presentation/d/team-innovators-pitch/edit",
    "submitted_at": "2024-12-01T15:30:00Z",
    "updated_at": "2024-12-01T16:45:00Z"
  }
}
```

---

## Common Error Responses

### Team Management Endpoints

| Status | Code                   | Message                         | Notes                      |
| ------ | ---------------------- | ------------------------------- | -------------------------- |
| 400    | `validation_error`     | `Invalid request data`          | Field validation failures  |
| 401    | `unauthorized`         | `Authentication required`       | Missing/invalid token      |
| 403    | `forbidden`            | `Insufficient permissions`      | Lacks required scope       |
| 404    | `team_not_found`       | `Team not found`                | Invalid team ID            |
| 404    | `submission_not_found` | `Team submission not found`     | Team has no submission     |
| 409    | `team_already_exists`  | `Team with name already exists` | Duplicate team name        |
| 413    | `payload_too_large`    | `Banner/logo file too large`    | Image exceeds size limit   |
| 422    | `invalid_city`         | `Invalid city specified`        | City not in allowed list   |
| 422    | `invalid_leader`       | `Invalid leader user ID`        | Leader user does not exist |
| 429    | `rate_limited`         | `Too many requests`             | Rate limiting              |
| 500    | `internal_error`       | `Unexpected server error`       | Unhandled exception        |

---

**Revision History**

- v1.0.0 (2025-11-30): Initial contract drafted.
- v2.0.0 (2025-12-01): Added user management endpoints with filtering, pagination, CRUD operations, and avatar handling.
- v3.0.0 (2025-12-02): Added team management endpoints based on backoffice implementation with team members, submissions, and comprehensive filtering.