import * as plugins from './bunq.plugins';
import { BunqAccount } from './bunq.classes.account';
import { BunqMonetaryAccount } from './bunq.classes.monetaryaccount';
import { 
  IBunqPaymentRequest, 
  IBunqPayment,
  IBunqAmount,
  IBunqAlias,
  IBunqPaginationOptions
} from './bunq.interfaces';

export class BunqPayment {
  private bunqAccount: BunqAccount;
  private monetaryAccount: BunqMonetaryAccount;
  private paymentData: IBunqPaymentRequest;
  
  // Properties populated after creation
  public id?: number;
  public created?: string;
  public updated?: string;
  public status?: string;

  constructor(
    bunqAccount: BunqAccount,
    monetaryAccount: BunqMonetaryAccount,
    paymentData: IBunqPaymentRequest
  ) {
    this.bunqAccount = bunqAccount;
    this.monetaryAccount = monetaryAccount;
    this.paymentData = paymentData;
  }

  /**
   * Create the payment
   */
  public async create(): Promise<number> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().post(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccount.id}/payment`,
      this.paymentData
    );

    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 payment');
  }

  /**
   * Get payment details
   */
  public async get(): Promise<IBunqPayment> {
    if (!this.id) {
      throw new Error('Payment ID not set');
    }

    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().get(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccount.id}/payment/${this.id}`
    );

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

    throw new Error('Payment not found');
  }

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

    const payments: IBunqPayment[] = [];
    
    if (response.Response) {
      for (const item of response.Response) {
        if (item.Payment) {
          payments.push(item.Payment);
        }
      }
    }

    return payments;
  }

  /**
   * Create a payment builder
   */
  public static builder(
    bunqAccount: BunqAccount,
    monetaryAccount: BunqMonetaryAccount
  ): PaymentBuilder {
    return new PaymentBuilder(bunqAccount, monetaryAccount);
  }
}

/**
 * Builder class for creating payments
 */
export class PaymentBuilder {
  private bunqAccount: BunqAccount;
  private monetaryAccount: BunqMonetaryAccount;
  private paymentData: Partial<IBunqPaymentRequest> = {};

  constructor(bunqAccount: BunqAccount, monetaryAccount: BunqMonetaryAccount) {
    this.bunqAccount = bunqAccount;
    this.monetaryAccount = monetaryAccount;
  }

  /**
   * Set the amount
   */
  public amount(value: string, currency: string = 'EUR'): this {
    this.paymentData.amount = { value, currency };
    return this;
  }

  /**
   * Set the counterparty by IBAN
   */
  public toIban(iban: string, name?: string): this {
    this.paymentData.counterparty_alias = {
      type: 'IBAN',
      value: iban,
      name
    };
    return this;
  }

  /**
   * Set the counterparty by email
   */
  public toEmail(email: string, name?: string): this {
    this.paymentData.counterparty_alias = {
      type: 'EMAIL',
      value: email,
      name
    };
    return this;
  }

  /**
   * Set the counterparty by phone number
   */
  public toPhoneNumber(phoneNumber: string, name?: string): this {
    this.paymentData.counterparty_alias = {
      type: 'PHONE_NUMBER',
      value: phoneNumber,
      name
    };
    return this;
  }

  /**
   * Set the description
   */
  public description(description: string): this {
    this.paymentData.description = description;
    return this;
  }

  /**
   * Set merchant reference
   */
  public merchantReference(reference: string): this {
    this.paymentData.merchant_reference = reference;
    return this;
  }

  /**
   * Allow bunq.to payments
   */
  public allowBunqto(allow: boolean = true): this {
    this.paymentData.allow_bunqto = allow;
    return this;
  }

  /**
   * Add attachments
   */
  public attachments(attachmentIds: number[]): this {
    this.paymentData.attachment = attachmentIds.map(id => ({ id }));
    return this;
  }

  /**
   * Build and create the payment
   */
  public async create(): Promise<BunqPayment> {
    if (!this.paymentData.amount) {
      throw new Error('Amount is required');
    }
    if (!this.paymentData.counterparty_alias) {
      throw new Error('Counterparty is required');
    }
    if (!this.paymentData.description) {
      throw new Error('Description is required');
    }

    const payment = new BunqPayment(
      this.bunqAccount,
      this.monetaryAccount,
      this.paymentData as IBunqPaymentRequest
    );

    await payment.create();
    return payment;
  }
}

/**
 * Batch payment class for creating multiple payments at once
 */
export class BunqBatchPayment {
  private bunqAccount: BunqAccount;
  private monetaryAccount: BunqMonetaryAccount;
  private payments: IBunqPaymentRequest[] = [];

  constructor(bunqAccount: BunqAccount, monetaryAccount: BunqMonetaryAccount) {
    this.bunqAccount = bunqAccount;
    this.monetaryAccount = monetaryAccount;
  }

  /**
   * Add a payment to the batch
   */
  public addPayment(payment: IBunqPaymentRequest): this {
    this.payments.push(payment);
    return this;
  }

  /**
   * Create all payments in the batch
   */
  public async create(): Promise<number> {
    if (this.payments.length === 0) {
      throw new Error('No payments in batch');
    }

    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().post(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccount.id}/payment-batch`,
      {
        payments: this.payments
      }
    );

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

    throw new Error('Failed to create batch payment');
  }

  /**
   * Get batch payment details
   */
  public async get(batchId: number): Promise<any> {
    await this.bunqAccount.apiContext.ensureValidSession();
    
    const response = await this.bunqAccount.getHttpClient().get(
      `/v1/user/${this.bunqAccount.userId}/monetary-account/${this.monetaryAccount.id}/payment-batch/${batchId}`
    );

    return response.Response;
  }
}