import modalHtml from '../components/login-modal/login-modal.html?raw';
import modalScript from '../components/login-modal/login-modal.js?raw';
import validationModalStyle from '../components/validation-modal/validation-modal.css?raw';
import Services from './service';
import { init, navigate } from '../router';
import { addressToEmoji } from '../utils/sp-address.utils';
import { RoleDefinition } from 'pkg/sdk_client';
import { initValidationModal } from '~/components/validation-modal/validation-modal';
import { interpolate } from '~/utils/html.utils';

interface ConfirmationModalOptions {
  title: string;
  content: string;
  confirmText?: string;
  cancelText?: string;
}

export default class ModalService {
  private static instance: ModalService;
  private stateId: string | null = null;
  private processId: string | null = null;
  private constructor() {}
  private paired_addresses: string[] = [];
  private modal: HTMLElement | null = null;

  // 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('#containerId');
    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);
    }
  }

  async injectCreationModal(members: any[]) {
    const container = document.querySelector('#containerId');
    if (container) {
      let html = await fetch('/src/components/modal/creation-modal.html').then((res) => res.text());
      html = html.replace('{{device1}}', await addressToEmoji(members[0]['sp_addresses'][0]));
      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);
    }
  }

  // Device 1 wait Device 2
  async injectWaitingModal() {
    const container = document.querySelector('#containerId');
    if (container) {
      let html = await fetch('/src/components/modal/waiting-modal.html').then((res) => res.text());
      container.innerHTML += html;
    } 
  }

  async injectValidationModal(processDiff: any) {
    const container = document.querySelector('#containerId');
    if (container) {
      let html = await fetch('/src/components/validation-modal/validation-modal.html').then((res) => res.text());
      html = interpolate(html, {processId: processDiff.processId})
      container.innerHTML += html;

      // Dynamically load the header JS
      const script = document.createElement('script');
      script.id = 'validation-modal-script';
      script.src = '/src/components/validation-modal/validation-modal.ts';
      script.type = 'module';
      document.head.appendChild(script);
      const css = document.createElement('style');
      css.id = 'validation-modal-css';
      css.innerText = validationModalStyle;
      document.head.appendChild(css);
      initValidationModal(processDiff)
    }
  }

  async closeValidationModal() {
    const script = document.querySelector('#validation-modal-script');
    const css = document.querySelector('#validation-modal-css');
    const component = document.querySelector('#validation-modal');
    script?.remove();
    css?.remove();
    component?.remove();
  }

  public async openPairingConfirmationModal(roleDefinition: Record<string, RoleDefinition>, processId: string, stateId: string) {
    let members;
    if (roleDefinition['pairing']) {
      const owner = roleDefinition['pairing'];
      members = owner.members;
    } else {
      throw new Error('No "pairing" role');
    }

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

    console.log("MEMBERS:", members);
    // We take all the addresses except our own
    const service = await Services.getInstance();
    const localAddress = service.getDeviceAddress();
    for (const member of members) {
      if (member.sp_addresses) {
        for (const address of member.sp_addresses) {
          if (address !== localAddress) {
            this.paired_addresses.push(address);
          }
        }
      }
    }
    this.processId = processId;
    this.stateId = stateId;

    if (members[0].sp_addresses.length === 1) {
      await this.injectCreationModal(members);
      this.modal = document.getElementById('creation-modal');
      console.log("LENGTH:", members[0].sp_addresses.length);
    } else {
      await this.injectModal(members);
      this.modal = document.getElementById('modal');
      console.log("LENGTH:", members[0].sp_addresses.length);
    }

    if (this.modal) this.modal.style.display = 'flex';

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

  async showConfirmationModal(options: ConfirmationModalOptions, fullscreen: boolean = false): Promise<boolean> {
    // Create modal element
    const modalElement = document.createElement('div');
    modalElement.id = 'confirmation-modal';
    modalElement.innerHTML = `
      <div class="modal-overlay">
        <div class="modal-content" ${fullscreen ? 'style="width: 100% !important; max-width: none !important; height: 100% !important; max-height: none !important; border-radius: 0 !important; margin: 0 !important;"' : ''}>
          <h2>${options.title}</h2>
          <div class="modal-body">
            ${options.content}
          </div>
          <div class="modal-footer">
            <button id="cancel-button" class="btn btn-secondary">${options.cancelText || 'Annuler'}</button>
            <button id="confirm-button" class="btn btn-primary">${options.confirmText || 'Confirmer'}</button>
          </div>
        </div>
      </div>
    `;

    // Add modal to document
    document.body.appendChild(modalElement);

    // Return promise that resolves with user choice
    return new Promise((resolve) => {
      const confirmButton = modalElement.querySelector('#confirm-button');
      const cancelButton = modalElement.querySelector('#cancel-button');
      const modalOverlay = modalElement.querySelector('.modal-overlay');

      const cleanup = () => {
        modalElement.remove();
      };

      confirmButton?.addEventListener('click', () => {
        cleanup();
        resolve(true);
      });

      cancelButton?.addEventListener('click', () => {
        cleanup();
        resolve(false);
      });

      modalOverlay?.addEventListener('click', (e) => {
        if (e.target === modalOverlay) {
          cleanup();
          resolve(false);
        }
      });
    });
  }

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