import * as plugins from './bunq.plugins';
import { BunqAccount } from './bunq.classes.account';

export class BunqAttachment {
  private bunqAccount: BunqAccount;
  
  public id?: number;
  public created?: string;
  public updated?: string;
  public uuid?: string;
  
  constructor(bunqAccount: BunqAccount) {
    this.bunqAccount = bunqAccount;
  }

  /**
   * Upload a file attachment
   */
  public async upload(options: {
    contentType: string;
    description?: string;
    body: Buffer | string;
  }): Promise<string> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    // First, create the attachment placeholder
    const attachmentResponse = await this.bunqAccount.getHttpClient().post(
      '/v1/attachment-public',
      {
        description: options.description
      }
    );

    if (!attachmentResponse.Response || !attachmentResponse.Response[0]) {
      throw new Error('Failed to create attachment');
    }

    const attachmentUuid = attachmentResponse.Response[0].Uuid.uuid;
    this.uuid = attachmentUuid;

    // Upload the actual content
    const uploadUrl = `/v1/attachment-public/${attachmentUuid}/content`;
    
    // For file uploads, we need to make a raw request
    const headers = {
      'Content-Type': options.contentType,
      'X-Bunq-Client-Authentication': this.bunqAccount.apiContext.getSession().getContext().sessionToken
    };

    const requestOptions = {
      method: 'PUT' as const,
      headers: headers,
      requestBody: options.body
    };

    await plugins.smartrequest.request(
      `${this.bunqAccount.apiContext.getBaseUrl()}${uploadUrl}`,
      requestOptions
    );

    return attachmentUuid;
  }

  /**
   * Get attachment content
   */
  public async getContent(attachmentUuid: string): Promise<Buffer> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await plugins.smartrequest.request(
      `${this.bunqAccount.apiContext.getBaseUrl()}/v1/attachment-public/${attachmentUuid}/content`,
      {
        method: 'GET',
        headers: {
          'X-Bunq-Client-Authentication': this.bunqAccount.apiContext.getSession().getContext().sessionToken
        }
      }
    );

    return Buffer.from(response.body);
  }

  /**
   * Create attachment for a specific monetary account
   */
  public async createForAccount(
    monetaryAccountId: number,
    attachmentPublicUuid: string
  ): Promise<number> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().post(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${monetaryAccountId}/attachment`,
      {
        attachment_public_uuid: attachmentPublicUuid
      }
    );

    if (response.Response && response.Response[0] && response.Response[0].Id) {
      this.id = response.Response[0].Id.id;
      return this.id;
    }

    throw new Error('Failed to create account attachment');
  }

  /**
   * List attachments for a monetary account
   */
  public static async listForAccount(
    bunqAccount: BunqAccount,
    monetaryAccountId: number
  ): Promise<any[]> {
    await bunqAccount.apiContext.ensureValidSession();
    
    const response = await bunqAccount.getHttpClient().list(
      `/v1/user/${bunqAccount.userId}/monetary-account/${monetaryAccountId}/attachment`
    );

    return response.Response || [];
  }

  /**
   * Create attachment for a payment
   */
  public async createForPayment(
    monetaryAccountId: number,
    paymentId: number,
    attachmentId: number
  ): Promise<void> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    await this.bunqAccount.getHttpClient().post(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${monetaryAccountId}/payment/${paymentId}/attachment`,
      {
        id: attachmentId
      }
    );
  }

  /**
   * Upload image as avatar
   */
  public async uploadAvatar(imageBuffer: Buffer, contentType: string = 'image/png'): Promise<string> {
    return this.upload({
      contentType,
      description: 'Avatar image',
      body: imageBuffer
    });
  }

  /**
   * Upload document
   */
  public async uploadDocument(
    documentBuffer: Buffer,
    contentType: string,
    description: string
  ): Promise<string> {
    return this.upload({
      contentType,
      description,
      body: documentBuffer
    });
  }

  /**
   * Helper to upload file from filesystem
   */
  public async uploadFile(filePath: string, description?: string): Promise<string> {
    const fileBuffer = await plugins.smartfile.fs.toBuffer(filePath);
    const contentType = this.getContentType(filePath);
    
    return this.upload({
      contentType,
      description: description || plugins.path.basename(filePath),
      body: fileBuffer
    });
  }

  /**
   * Get content type from file extension
   */
  private getContentType(filePath: string): string {
    const ext = plugins.path.extname(filePath).toLowerCase();
    
    const contentTypes: { [key: string]: string } = {
      '.jpg': 'image/jpeg',
      '.jpeg': 'image/jpeg',
      '.png': 'image/png',
      '.gif': 'image/gif',
      '.pdf': 'application/pdf',
      '.txt': 'text/plain',
      '.csv': 'text/csv',
      '.xml': 'application/xml',
      '.json': 'application/json'
    };

    return contentTypes[ext] || 'application/octet-stream';
  }
}

/**
 * Tab attachment class for managing receipt attachments
 */
export class BunqTabAttachment {
  private bunqAccount: BunqAccount;
  private monetaryAccountId: number;
  private tabUuid: string;

  constructor(bunqAccount: BunqAccount, monetaryAccountId: number, tabUuid: string) {
    this.bunqAccount = bunqAccount;
    this.monetaryAccountId = monetaryAccountId;
    this.tabUuid = tabUuid;
  }

  /**
   * Upload attachment for a tab
   */
  public async upload(attachmentPublicUuid: string): Promise<number> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().post(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccountId}/tab/${this.tabUuid}/attachment`,
      {
        attachment_public_uuid: attachmentPublicUuid
      }
    );

    if (response.Response && response.Response[0] && response.Response[0].Id) {
      return response.Response[0].Id.id;
    }

    throw new Error('Failed to create tab attachment');
  }

  /**
   * List attachments for a tab
   */
  public async list(): Promise<any[]> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().list(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccountId}/tab/${this.tabUuid}/attachment`
    );

    return response.Response || [];
  }

  /**
   * Get specific attachment
   */
  public async get(attachmentId: number): Promise<any> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().get(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccountId}/tab/${this.tabUuid}/attachment/${attachmentId}`
    );

    if (response.Response && response.Response[0]) {
      return response.Response[0].TabAttachment;
    }

    throw new Error('Tab attachment not found');
  }
}