import { ref } from 'vue';
import { defineStore } from 'pinia';
import { api } from 'src/boot/axios';
import {
  Report,
  ReportPayment,
  ReportProduct,
  ReportQuotation,
  ReportSale,
  ReportProfit,
  CustomerDept,
} from './types';
import { baseUrl } from '../utils';
import { getToken } from 'src/services/keycloak';

const ENDPOINT = 'report';

async function _download(
  url: string,
  filename?: string,
  params?: {
    startDate: string | Date;
    endDate: string | Date;
  },
) {
  if (params) {
    const queryParams = new URLSearchParams({
      startDate:
        params.startDate instanceof Date
          ? params.startDate.toISOString()
          : params.startDate,
      endDate:
        params.endDate instanceof Date
          ? params.endDate.toISOString()
          : params.endDate,
    }).toString();
    url += '?' + queryParams;
  }

  const res = await fetch(url, {
    headers: { ['Authorization']: 'Bearer ' + (await getToken()) },
  });
  const text = await res.json();
  const blob = new Blob([text], { type: 'text/csv' });
  if (res.ok && blob) {
    const a = document.createElement('a');
    a.download = (filename || 'report') + '.csv';
    a.href = window.URL.createObjectURL(blob);
    a.click();
    a.remove();
  }
}

export async function downloadReportQuotation(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  await _download(
    baseUrl + '/' + ENDPOINT + '/quotation/download',
    'quotation-report',
    params,
  );
}

export async function getReportQuotation(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<ReportQuotation[]>(`/${ENDPOINT}/quotation`, {
    params,
  });
  if (res.status < 400) {
    res.data;
    return res.data;
  }
  return null;
}

export async function downloadReportInvoice(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  await _download(
    baseUrl + '/' + ENDPOINT + '/invoice/download',
    'invoice-report',
    params,
  );
}

export async function getReportInvoice(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<Report[]>(`/${ENDPOINT}/invoice`, { params });
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function downloadReportReceipt(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  await _download(
    baseUrl + '/' + ENDPOINT + '/receipt/download',
    'receipt-report',
    params,
  );
}

export async function getReportReceipt(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<Report[]>(`/${ENDPOINT}/receipt`, { params });
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function downloadReportSale(
  category: 'by-product-group' | 'by-sale' | 'by-customer',
  params?: {
    startDate: string | Date;
    endDate: string | Date;
  },
) {
  await _download(
    baseUrl + '/' + ENDPOINT + '/sale/' + category + '/download',
    'sale-' + category + '-report',
    params,
  );
}

export async function getReportSale(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<ReportSale>(`/${ENDPOINT}/sale`, { params });

  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function downloadReportProduct(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  await _download(
    baseUrl + '/' + ENDPOINT + '/receipt/download',
    'product-report',
    params,
  );
}

export async function getReportProduct(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<ReportProduct[]>(`/${ENDPOINT}/product`, {
    params,
  });
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function getReportPayment(params?: {
  startDate: string | Date;
  endDate: string | Date;
}) {
  const res = await api.get<ReportPayment[]>(`/${ENDPOINT}/payment`, {
    params,
  });
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function getReportProfit(params?: {
  years?: number;
  startDate?: string | Date;
  endDate?: string | Date;
}) {
  let opts = params || {};

  if (params?.years) {
    const currentYear = new Date().getFullYear();
    opts.startDate = new Date(currentYear - params.years, 0, 1);
    opts.endDate = new Date(currentYear, 11, 31);
  }

  const res = await api.get<ReportProfit>(`/${ENDPOINT}/profit`, {
    params: {
      startDate: opts.startDate,
      endDate: opts.endDate,
    },
  });
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export async function getReportDept() {
  const res = await api.get<CustomerDept[]>(`/${ENDPOINT}/customer-dept`);
  if (res.status < 400) {
    return res.data;
  }
  return null;
}

export const useReportStore = defineStore('report-store', () => {
  const dataReportQuotation = ref<ReportQuotation[]>([]);
  const dataReportInvoice = ref<Report[]>([]);
  const dataReportReceipt = ref<Report[]>([]);
  const dataReportSale = ref<ReportSale>();
  const dataReportProduct = ref<ReportProduct[]>([]);
  const dataReportPayment = ref<ReportPayment[]>([]);
  const dataReportProfit = ref<ReportProfit>();
  const detaReportDept = ref<CustomerDept[]>([]);

  return {
    dataReportQuotation,
    dataReportInvoice,
    dataReportReceipt,
    dataReportSale,
    dataReportProduct,
    dataReportPayment,
    dataReportProfit,
    detaReportDept,

    downloadReportQuotation,
    getReportQuotation,
    downloadReportInvoice,
    getReportInvoice,
    downloadReportReceipt,
    getReportReceipt,
    downloadReportSale,
    getReportSale,
    downloadReportProduct,
    getReportProduct,
    getReportPayment,
    getReportProfit,
    getReportDept,
  };
});