import * as plugins from '../../plugins.js';
import {
  customElement,
  DeesElement,
  html,
  css,
  cssManager,
  state,
  type TemplateResult,
} from '@design.estate/dees-element';

import { accountDesignTokens } from './sharedstyles.js';
import * as accountStateModule from '../../states/accountstate.js';
import { IdpState } from '../../states/idp.state.js';

// Internal form element for reactive state management
@customElement('idp-create-org-form')
class CreateOrgForm extends DeesElement {
  @state()
  accessor orgName: string = '';

  @state()
  accessor orgSlug: string = '';

  @state()
  accessor validating: boolean = false;

  @state()
  accessor validationResult: { available: boolean; message: string } | null = null;

  @state()
  accessor creating: boolean = false;

  @state()
  accessor error: string = '';

  private validationDebounceTimer: any = null;
  public resolveWith: ((org: plugins.idpInterfaces.data.IOrganization | null) => void) | null = null;
  public modal: plugins.deesCatalog.DeesModal | null = null;

  public static styles = [
    cssManager.defaultStyles,
    css`
      :host {
        display: block;
      }

      .slug-preview {
        margin-top: 12px;
        padding: 12px 16px;
        background: var(--dees-color-background);
        border: 1px solid var(--dees-color-line);
        border-radius: 8px;
      }

      .slug-label {
        font-size: 11px;
        font-weight: 500;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--dees-color-muted);
        margin-bottom: 4px;
      }

      .slug-value {
        font-family: 'Geist Mono', monospace;
        font-size: 14px;
        color: var(--dees-color-text);
      }

      .validation-status {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 12px;
        padding: 10px 14px;
        border-radius: 8px;
        font-size: 13px;
      }

      .validation-status.validating {
        background: rgba(59, 130, 246, 0.1);
        color: #3b82f6;
      }

      .validation-status.available {
        background: rgba(34, 197, 94, 0.1);
        color: #22c55e;
      }

      .validation-status.unavailable {
        background: rgba(239, 68, 68, 0.1);
        color: #ef4444;
      }

      .validation-status dees-icon {
        font-size: 16px;
      }

      .error-message {
        margin-top: 16px;
        padding: 12px 16px;
        background: rgba(239, 68, 68, 0.1);
        border: 1px solid rgba(239, 68, 68, 0.3);
        border-radius: 8px;
        color: #ef4444;
        font-size: 13px;
      }

      .description {
        color: var(--dees-color-muted);
        font-size: 14px;
        margin-bottom: 20px;
      }
    `,
  ];

  public render(): TemplateResult {
    return html`
      <div class="description">Create a new organization to manage apps, users, and billing.</div>
      <dees-input-text
        .label=${'Organization Name'}
        .placeholder=${'e.g., Acme Inc.'}
        .value=${this.orgName}
        ?disabled=${this.creating}
      ></dees-input-text>

      ${this.orgSlug ? html`
        <div class="slug-preview">
          <div class="slug-label">Organization URL Slug</div>
          <div class="slug-value">${this.orgSlug}</div>
        </div>
      ` : ''}

      ${this.renderValidationStatus()}

      ${this.error ? html`
        <div class="error-message">${this.error}</div>
      ` : ''}
    `;
  }

  private renderValidationStatus(): TemplateResult | null {
    if (!this.orgSlug) {
      return null;
    }

    if (this.validating) {
      return html`
        <div class="validation-status validating">
          <dees-icon .icon=${'lucide:loader-2'}></dees-icon>
          Checking availability...
        </div>
      `;
    }

    if (this.validationResult) {
      if (this.validationResult.available) {
        return html`
          <div class="validation-status available">
            <dees-icon .icon=${'lucide:check-circle'}></dees-icon>
            ${this.validationResult.message}
          </div>
        `;
      } else {
        return html`
          <div class="validation-status unavailable">
            <dees-icon .icon=${'lucide:x-circle'}></dees-icon>
            ${this.validationResult.message}
          </div>
        `;
      }
    }

    return null;
  }

  public async firstUpdated() {
    const inputElement = this.shadowRoot.querySelector('dees-input-text') as any;
    if (inputElement) {
      inputElement.changeSubject.subscribe((element: any) => {
        this.handleNameInput(element.value);
      });
    }
  }

  private handleNameInput(value: string) {
    this.orgName = value;
    this.orgSlug = this.generateSlug(this.orgName);
    this.error = '';

    // Debounce validation
    if (this.validationDebounceTimer) {
      clearTimeout(this.validationDebounceTimer);
    }

    if (this.orgSlug) {
      this.validating = true;
      this.validationResult = null;
      this.validationDebounceTimer = setTimeout(() => {
        this.validateSlug();
      }, 500);
    } else {
      this.validating = false;
      this.validationResult = null;
    }
  }

  private generateSlug(name: string): string {
    return name
      .replace(/[^a-zA-Z0-9\s-]/g, '')
      .replace(/\s+/g, '-')
      .toLowerCase();
  }

  private async validateSlug() {
    if (!this.orgSlug) {
      this.validating = false;
      return;
    }

    try {
      const idpState = await IdpState.getSingletonInstance();
      const result = await idpState.idpClient.createOrganization(
        this.orgName,
        this.orgSlug,
        'checkAvailability'
      );

      this.validationResult = {
        available: result.nameAvailable,
        message: result.nameAvailable
          ? 'This name is available!'
          : 'This name is already taken. Please choose another.',
      };
    } catch (error) {
      console.error('Validation error:', error);
      this.validationResult = {
        available: false,
        message: 'Unable to validate. Please try again.',
      };
    } finally {
      this.validating = false;
    }
  }

  public canCreate(): boolean {
    return this.orgName.length > 0 &&
           this.validationResult?.available === true &&
           !this.validating &&
           !this.creating;
  }

  public async handleCreate(): Promise<void> {
    if (!this.canCreate()) {
      return;
    }

    this.creating = true;
    this.error = '';

    try {
      const idpState = await IdpState.getSingletonInstance();
      const result = await idpState.idpClient.createOrganization(
        this.orgName,
        this.orgSlug,
        'manifest'
      );

      // Update state with new organization
      const currentState = accountStateModule.accountState.getState();
      currentState.organizations.push(result.resultingOrganization);
      accountStateModule.accountState.dispatchAction(
        accountStateModule.setSelectedOrg,
        result.resultingOrganization
      );

      this.modal?.destroy();
      this.resolveWith?.(result.resultingOrganization);
    } catch (error) {
      console.error('Error creating organization:', error);
      this.error = error instanceof Error ? error.message : 'Failed to create organization. Please try again.';
      this.creating = false;
    }
  }

  public handleCancel(): void {
    if (this.validationDebounceTimer) {
      clearTimeout(this.validationDebounceTimer);
    }
    this.modal?.destroy();
    this.resolveWith?.(null);
  }
}

// Export the modal utility class
export class CreateOrgModal {
  public static async show(): Promise<plugins.idpInterfaces.data.IOrganization | null> {
    return new Promise<plugins.idpInterfaces.data.IOrganization | null>((resolve) => {
      const formElement = new CreateOrgForm();
      formElement.resolveWith = resolve;

      plugins.deesCatalog.DeesModal.createAndShow({
        heading: 'Create Organization',
        content: html`${formElement}`,
        menuOptions: [
          {
            name: 'Cancel',
            action: async () => {
              formElement.handleCancel();
            },
          },
          {
            name: 'Create Organization',
            action: async () => {
              await formElement.handleCreate();
            },
          },
        ],
        width: 480,
      }).then((modal) => {
        formElement.modal = modal;
      });
    });
  }
}