# Task ID: 3
# Title: Implement, Document, & Test `getChatsOverview` Endpoint
# Status: done
# Dependencies: 1
# Priority: high
# Description: Implement the `getChatsOverview` method, write JSDoc/TSDoc documentation, and develop unit tests. Ensure adherence to SDK conventions for API calls, error handling, and authentication.
# Details:
Functional Requirement 4.2: Method: getChatsOverview(session: string, options?: GetChatsOverviewOptions): Promise. API Call: GET /api/{session}/chats/overview. Parameters: session (path, required), limit (query, optional), offset (query, optional), ids (query, optional). Response: Array of ChatOverview objects. Adhere to NFRs.

# Test Strategy:
Unit tests for successful data retrieval, pagination, filtering by IDs, error handling, and parameter validation.

# Subtasks:
## 1. Implement `getChatsOverview` Method Logic [done]
### Dependencies: None
### Description: Implement the `getChatsOverview` method logic, including the API call to GET /api/{session}/chats/overview, handling of 'session', 'limit', 'offset', and 'ids' parameters, response processing into an array of ChatOverview objects, and adherence to SDK conventions for error handling and authentication.
### Details:
Core implementation of the method, focusing on API interaction, parameter handling, response transformation, and adherence to SDK error/authentication conventions.
<info added on 2025-06-08T22:11:12.305Z>
Plan for Subtask 3.1:
1. Define Method: Add `async getChatsOverview(session: string, options?: GetChatsOverviewOptions): Promise<ChatOverview[]>` to `WasendClient` in `src/index.ts`.
2. Endpoint: `GET /${session}/chats/overview`.
3. Query Parameters: Handle `limit`, `offset` from `options`. If `options.ids` exists and is an array with elements, join it into a comma-separated string for the `ids` query param.
4. API Call: Use `this.httpClient.get<ChatOverview[]>(url, { params: queryParams })`.
5. Return: `response.data`.
6. Type Imports: Ensure `GetChatsOverviewOptions` and `ChatOverview` are imported in `src/index.ts`.
</info added on 2025-06-08T22:11:12.305Z>
<info added on 2025-06-08T22:12:35.658Z>
Successfully implemented the `getChatsOverview` method in `src/index.ts`. Added `async getChatsOverview(session: string, options?: GetChatsOverviewOptions): Promise<ChatOverview[]>` to `WasendClient`. Uses endpoint `GET /${session}/chats/overview`. Handles `limit`, `offset`, and `ids` (comma-separated string from array) query parameters. Imports `GetChatsOverviewOptions` and `ChatOverview` from `./types/chat.types.ts`.
</info added on 2025-06-08T22:12:35.658Z>

## 2. Write Documentation for `getChatsOverview` Method [done]
### Dependencies: 3.1
### Description: Write comprehensive JSDoc/TSDoc documentation for the `getChatsOverview` method, detailing its purpose, parameters (session, options), and the structure of the returned Promise<ChatOverview[]>
### Details:
Create JSDoc/TSDoc comments explaining the method's purpose, all parameters (session; options object for limit, offset, ids), and the structure of the Promise<ChatOverview[]> return type.
<info added on 2025-06-08T22:13:12.891Z>
Plan for Subtask 3.2:
1. JSDoc Content for `getChatsOverview`:
   - Method description: Retrieves an overview of chats, allowing pagination and filtering by chat IDs.
   - @param session (string): The session identifier.
   - @param options? (GetChatsOverviewOptions): Optional. Contains:
     - `limit?` (number): Maximum number of chat overviews to return.
     - `offset?` (number): Number of chat overviews to skip for pagination.
     - `ids?` (string[]): Array of chat IDs (phone numbers or group JIDs) to filter by.
   - @returns Promise<ChatOverview[]>: A promise resolving to an array of `ChatOverview` objects.
   - @throws Error - If the API request fails (e.g., network error, API error).
   - @example Basic usage example.
2. Execution:
   - Log this plan.
   - Set status to `in-progress`.
   - Add the JSDoc block to the `getChatsOverview` method in `src/index.ts`.
   - Log successful outcome.
   - Set status to `done`.
</info added on 2025-06-08T22:13:12.891Z>
<info added on 2025-06-08T22:13:57.604Z>
Successfully added JSDoc/TSDoc documentation to the `getChatsOverview` method in `src/index.ts`. The documentation covers the method's purpose, parameters (`session`, `options` with `limit`, `offset`, `ids`), return type (`Promise<ChatOverview[]>`), potential errors, and includes a usage example.
</info added on 2025-06-08T22:13:57.604Z>

## 3. Develop Unit Tests for `getChatsOverview` Method [done]
### Dependencies: 3.1
### Description: Develop unit tests for the `getChatsOverview` method, covering scenarios such as successful data retrieval, pagination (limit/offset), filtering by IDs, error handling (e.g., invalid session, API errors), and validation of input parameters as outlined in the test strategy.
### Details:
Write automated tests to verify functionality across various scenarios: successful data retrieval, pagination, ID filtering, error conditions (invalid session, API errors), and input parameter validation.
<info added on 2025-06-08T22:14:47.073Z>
1. Test File: Add a new `describe` block for `getChatsOverview` in `test/chats.test.ts`.
2. Mocking: Continue using the global `axios` mock.
3. Test Cases:
    - Successful retrieval (no options): URL `/${session}/chats/overview`, returns `ChatOverview[]`.
    - Pagination: Passes `limit`, `offset` as query params.
    - ID Filtering: Passes `ids` as comma-separated string if `options.ids` is a non-empty array.
    - `offset: 0`: Correctly passed as a query param.
    - Empty/Undefined `ids`: `ids` param is NOT passed.
    - Combined Options: `limit`, `offset`, `ids` together.
    - Error Handling: Simulates API errors (401, 404, 500).
4. Execution Steps:
    a. Log plan.
    b. Set status `in-progress`.
    c. Add tests to `test/chats.test.ts`.
    d. Run `npx projen test`.
    e. If errors, debug and fix.
    f. Log outcome.
    g. Set status `done`.
</info added on 2025-06-08T22:14:47.073Z>
<info added on 2025-06-08T22:17:15.292Z>
Successfully developed and passed all unit tests for the `getChatsOverview` method in `test/chats.test.ts`. Tests confirmed coverage for successful data retrieval, pagination, ID filtering (including empty/undefined cases), combined options, and API error handling. During development, the mock data for `ChatOverview` was corrected to use `timestamp` instead of `lastMessageTimestamp`, and the assertion for an empty `ids` array was updated to expect `params: undefined`.
</info added on 2025-06-08T22:17:15.292Z>

