import modalHtml from '../components/login-modal/login-modal.html?raw';
import modalScript from '../components/login-modal/login-modal.js?raw';
import Services from './service';
import { U32_MAX } from './service';
import { navigate } from '../router';
import { addressToEmoji } from '../utils/sp-address.utils';
import { RoleDefinition } from 'dist/pkg/sdk_client';

export default class ModalService {
  private static instance: ModalService;
  private currentPrd: any;
  private currentOutpoint: string | null = null;
  private constructor() {}
  private paired_addresses: string[] = [];

  // Method to access the singleton instance of Services
  public static async getInstance(): Promise<ModalService> {
    if (!ModalService.instance) {
      ModalService.instance = new ModalService();
    }
    return ModalService.instance;
  }

  public openLoginModal(myAddress: string, receiverAddress: string) {
    const container = document.querySelector('.page-container');
    let html = modalHtml;
    html = html.replace('{{device1}}', myAddress);
    html = html.replace('{{device2}}', receiverAddress);
    if (container) container.innerHTML += html;
    const modal = document.getElementById('login-modal');
    if (modal) modal.style.display = 'flex';
    const newScript = document.createElement('script');

    newScript.setAttribute('type', 'module');
    newScript.textContent = modalScript;
    document.head.appendChild(newScript).parentNode?.removeChild(newScript);
  }

  async injectModal(members: any[]) {
    const container = document.querySelector('.page-container');
    if (container) {
      let html = await fetch('/src/components/modal/confirmation-modal.html').then((res) => res.text());
      html = html.replace('{{device1}}', await addressToEmoji(members[0]['sp_addresses'][0]));
      html = html.replace('{{device2}}', await addressToEmoji(members[0]['sp_addresses'][1]));
      container.innerHTML += html;

      // Dynamically load the header JS
      const script = document.createElement('script');
      script.src = '/src/components/modal/confirmation-modal.ts';
      script.type = 'module';
      document.head.appendChild(script);
    }
  }

  public async openConfirmationModal(pcd: any, commitmentTx: string) {
    let map: Record<string, RoleDefinition>;
    if (pcd['roles']) {
      const roles = pcd['roles'];
      try {
        map = JSON.parse(roles);
      } catch (e) {
        throw new Error(`Failed to parse roles: ${e}`);
      }
    } else {
      throw new Error('Pcd doesn\'t have a \"roles\" field');
    }

    let members;
    if (map['owner']) {
      const owner = map['owner'];
      members = owner.members;
    } else {
      throw new Error('No \"owner\" role');
    }

    if (members.length != 1) {
      throw new Error('Must have exactly 1 member');
    }

    // We take all the addresses except our own
    const service = await Services.getInstance();
    const localAddress = await service.getDeviceAddress();
    console.log('🚀 ~ Routing ~ openConfirmationModal ~ pcd:', pcd);
    for (const address of members[0]['sp_addresses']) {
      if (address !== localAddress) {
        this.paired_addresses.push(address);
      }
    }
    this.currentOutpoint = commitmentTx;
    await this.injectModal(members);
    const modal = document.getElementById('modal');
    if (modal) modal.style.display = 'flex';
    // const newScript = document.createElement('script');
    // newScript.setAttribute('type', 'module');
    // newScript.textContent = confirmationModalScript;
    // document.head.appendChild(newScript).parentNode?.removeChild(newScript);

    // Add correct text

    // Close modal when clicking outside of it
    window.onclick = (event) => {
      const modal = document.getElementById('modal');
      if (event.target === modal) {
        this.closeConfirmationModal();
      }
    };
  }
  confirmLogin() {
    console.log('=============> Confirm Login');
  }
  async closeLoginModal() {
    const modal = document.getElementById('login-modal');
    if (modal) modal.style.display = 'none';
  }

  async confirmPairing() {
    const service = await Services.getInstance();
    const modal = document.getElementById('modal');
    // console.log("🚀 ~ Routing ~ confirm ~ prd:", prd)
    if (modal) modal.style.display = 'none';

    if (this.currentOutpoint === null || this.paired_addresses.length === 0) {
      throw new Error('Missing outpoint and/or paired addresses');
    }  

    // We take the paired device(s) from the contract
    await service.pairDevice(this.currentOutpoint, this.paired_addresses);
    this.paired_addresses = [];
    this.currentOutpoint = null;
    const newDevice = await service.dumpDevice();
    await service.saveDevice(newDevice);
    navigate('process');
  }

  async closeConfirmationModal() {
    const service = await Services.getInstance();
    await service.unpairDevice();
    const modal = document.getElementById('modal');
    if (modal) modal.style.display = 'none';
  }
}