import {
  DeesElement,
  customElement,
  html,
  property,
  css,
  cssManager,
  type TemplateResult,
} from '@design.estate/dees-element';
import type { TSgProtocol } from '../interfaces.js';

declare global {
  interface HTMLElementTagNameMap {
    'sg-install-snippet': SgInstallSnippet;
  }
}

@customElement('sg-install-snippet')
export class SgInstallSnippet extends DeesElement {
  public static demo = () => html`
    <div style="display: flex; flex-direction: column; gap: 16px; max-width: 500px;">
      <sg-install-snippet .protocol=${'npm'} .packageName=${'@myorg/mypackage'}></sg-install-snippet>
      <sg-install-snippet .protocol=${'oci'} .packageName=${'myorg/myimage'} .registryUrl=${'registry.stack.gallery'}></sg-install-snippet>
      <sg-install-snippet .protocol=${'pypi'} .packageName=${'mypackage'} .registryUrl=${'registry.stack.gallery'}></sg-install-snippet>
      <sg-install-snippet .protocol=${'cargo'} .packageName=${'mypackage'}></sg-install-snippet>
    </div>
  `;
  public static demoGroups = ['Packages'];

  @property({ type: String })
  accessor protocol: TSgProtocol = 'npm';

  @property({ type: String })
  accessor packageName: string = '';

  @property({ type: String })
  accessor registryUrl: string = '';

  public static styles = [
    cssManager.defaultStyles,
    css`
      :host {
        display: block;
      }
      .snippet {
        background: ${cssManager.bdTheme('#f5f5f5', '#111')};
        border: 1px solid ${cssManager.bdTheme('#e5e5e5', '#333')};
        padding: 12px 16px;
        font-family: 'JetBrains Mono', monospace;
        font-size: 13px;
        color: ${cssManager.bdTheme('#333', '#e5e5e5')};
        position: relative;
        overflow-x: auto;
        white-space: nowrap;
      }
      .label {
        font-size: 11px;
        color: ${cssManager.bdTheme('#999', '#666')};
        margin-bottom: 4px;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        text-transform: uppercase;
        letter-spacing: 0.05em;
      }
      .copy-btn {
        position: absolute;
        right: 8px;
        top: 50%;
        transform: translateY(-50%);
        background: ${cssManager.bdTheme('#e5e5e5', '#333')};
        border: none;
        padding: 4px 8px;
        cursor: pointer;
        font-size: 11px;
        color: ${cssManager.bdTheme('#666', '#999')};
      }
      .copy-btn:hover {
        background: ${cssManager.bdTheme('#ddd', '#444')};
      }
    `,
  ];

  private getInstallCommand(): { label: string; command: string } {
    const reg = this.registryUrl;
    switch (this.protocol) {
      case 'npm':
        return {
          label: 'npm',
          command: reg
            ? `npm install ${this.packageName} --registry=https://${reg}`
            : `npm install ${this.packageName}`,
        };
      case 'oci':
        return {
          label: 'Docker / OCI',
          command: reg
            ? `docker pull ${reg}/${this.packageName}`
            : `docker pull ${this.packageName}`,
        };
      case 'maven':
        return {
          label: 'Maven',
          command: `<dependency>\n  <groupId>${this.packageName.split('/')[0] || ''}</groupId>\n  <artifactId>${this.packageName.split('/')[1] || this.packageName}</artifactId>\n</dependency>`,
        };
      case 'cargo':
        return {
          label: 'Cargo',
          command: `cargo add ${this.packageName}`,
        };
      case 'pypi':
        return {
          label: 'pip',
          command: reg
            ? `pip install ${this.packageName} --index-url https://${reg}/simple/`
            : `pip install ${this.packageName}`,
        };
      case 'composer':
        return {
          label: 'Composer',
          command: `composer require ${this.packageName}`,
        };
      case 'rubygems':
        return {
          label: 'gem',
          command: reg
            ? `gem install ${this.packageName} --source https://${reg}`
            : `gem install ${this.packageName}`,
        };
      default:
        return { label: this.protocol, command: this.packageName };
    }
  }

  private async copyToClipboard() {
    const { command } = this.getInstallCommand();
    try {
      await navigator.clipboard.writeText(command);
    } catch {
      // Fallback for browsers without clipboard API
    }
  }

  public render(): TemplateResult {
    const { label, command } = this.getInstallCommand();
    return html`
      <div class="label">${label}</div>
      <div class="snippet">
        <code>${command}</code>
        <button class="copy-btn" @click=${() => this.copyToClipboard()}>Copy</button>
      </div>
    `;
  }
}