import * as plugins from '../../../plugins.js';
import * as appstate from '../../../appstate.js';
import * as shared from '../../shared/index.js';

import {
  DeesElement,
  css,
  cssManager,
  customElement,
  html,
  state,
} from '@design.estate/dees-element';

type TBaseOsImageBuild = any;
type TBaseOsImageSourcePreset =
  | 'balena-generic-amd64'
  | 'balena-generic-aarch64'
  | 'balena-raspberrypi4-64';

const sourcePresetArchitectures: Record<TBaseOsImageSourcePreset, string> = {
  'balena-generic-amd64': 'amd64',
  'balena-generic-aarch64': 'arm64',
  'balena-raspberrypi4-64': 'rpi',
};

@customElement('cloudly-view-baseos')
export class CloudlyViewBaseOs extends DeesElement {
  @state() private builds: TBaseOsImageBuild[] = [];
  @state() private isLoading = false;

  private refreshTimer?: number;

  public static styles = [
    cssManager.defaultStyles,
    shared.viewHostCss,
    css`
      .layout {
        display: grid;
        grid-template-columns: 420px 1fr;
        gap: 16px;
        padding: 24px 0;
      }

      .builds {
        display: flex;
        flex-direction: column;
        gap: 12px;
      }

      .build {
        border: 1px solid #2a2f3a;
        border-radius: 12px;
        padding: 16px;
        background: #10151f;
      }

      .build-head {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
      }

      .meta {
        color: #9aa4b2;
        font-size: 13px;
        margin-top: 8px;
      }

      .logs {
        margin-top: 12px;
        max-height: 120px;
        overflow: auto;
        font-family: monospace;
        font-size: 12px;
        color: #bac4d1;
        white-space: pre-wrap;
      }

      @media (max-width: 900px) {
        .layout {
          grid-template-columns: 1fr;
        }
      }
    `,
  ];

  public async connectedCallback() {
    await super.connectedCallback();
    await this.loadBuilds();
    this.refreshTimer = window.setInterval(() => this.loadBuilds(), 5000);
  }

  public async disconnectedCallback() {
    await super.disconnectedCallback();
    if (this.refreshTimer) {
      window.clearInterval(this.refreshTimer);
    }
  }

  public render() {
    return html`
      <cloudly-sectionheading>BaseOS Images</cloudly-sectionheading>
      <div class="layout">
        <dees-panel .title=${'Create Image'} .subtitle=${'Build a Cloudly-bound BaseOS artifact'} .variant=${'outline'}>
          <dees-form @formData=${(eventArg: CustomEvent) => this.createBuild((eventArg.detail as any).data)}>
            <dees-input-dropdown
              .key=${'imageKind'}
              .label=${'Image Type'}
              .selectedOption=${'balena-raw'}
              .options=${[
                { key: 'balena-raw', option: 'balenaOS raw image', payload: null },
                { key: 'ubuntu-iso', option: 'Ubuntu bootstrap ISO', payload: null },
              ]}
            ></dees-input-dropdown>
            <dees-input-dropdown
              .key=${'architecture'}
              .label=${'Architecture'}
              .selectedOption=${'amd64'}
              .options=${[
                { key: 'amd64', option: 'amd64', payload: null },
                { key: 'arm64', option: 'arm64', payload: null },
                { key: 'rpi', option: 'Raspberry Pi', payload: null },
              ]}
            ></dees-input-dropdown>
            <dees-input-text .key=${'cloudlyUrl'} .label=${'Cloudly URL'} .value=${window.location.origin} .required=${true}></dees-input-text>
            <dees-input-text .key=${'hostname'} .label=${'Hostname'} .value=${'baseos-node'} .required=${false}></dees-input-text>
            <dees-input-dropdown
              .key=${'sourceImagePreset'}
              .label=${'balenaOS Source Preset'}
              .selectedOption=${'auto'}
              .options=${[
                { key: 'auto', option: 'Auto by architecture', payload: null },
                { key: 'balena-generic-amd64', option: 'Generic x86_64 (GPT)', payload: null },
                { key: 'balena-generic-aarch64', option: 'Generic AARCH64', payload: null },
                { key: 'balena-raspberrypi4-64', option: 'Raspberry Pi 4 64-bit', payload: null },
                { key: 'custom-url', option: 'Custom source URL', payload: null },
              ]}
              .description=${'Used for balenaOS raw images when no custom source URL is provided.'}
            ></dees-input-dropdown>
            <dees-input-text .key=${'balenaOsVersion'} .label=${'balenaOS Version'} .value=${'latest'} .description=${'Use latest, or an explicit balenaOS raw_version such as 2026.1.0.'} .required=${false}></dees-input-text>
            <dees-input-text .key=${'wifiSsid'} .label=${'WiFi SSID'} .required=${false}></dees-input-text>
            <dees-input-text .key=${'wifiPassword'} .label=${'WiFi Password'} .isPasswordBool=${true} .required=${false}></dees-input-text>
            <dees-input-textarea .key=${'sshPublicKey'} .label=${'SSH Public Key'} .required=${false}></dees-input-textarea>
            <dees-input-text .key=${'sourceImageUrl'} .label=${'Custom Source Image URL'} .description=${'Optional override for balenaOS raw images (.img, .img.xz, .zip, or balena download URL with fileType=.zip).'} .required=${false}></dees-input-text>
            <dees-form-submit .text=${this.isLoading ? 'Creating...' : 'Create BaseOS Image'} .disabled=${this.isLoading}></dees-form-submit>
          </dees-form>
        </dees-panel>
        <div class="builds">
          ${this.builds.length === 0
            ? html`<dees-panel .title=${'No image builds yet'} .subtitle=${'Create an image to start a corebuild job.'}></dees-panel>`
            : this.builds.map((buildArg) => this.renderBuild(buildArg))}
        </div>
      </div>
    `;
  }

  private renderBuild(buildArg: TBaseOsImageBuild) {
    const data = buildArg.data;
    return html`
      <div class="build">
        <div class="build-head">
          <div>
            <strong>${data.hostname || buildArg.id}</strong>
            <div class="meta">${data.imageKind || 'ubuntu-iso'} · ${data.architecture} · ${data.cloudlyUrl}</div>
            ${data.sourceImagePreset ? html`<div class="meta">${data.sourceImagePreset} · balenaOS ${data.balenaOsVersion || 'latest'}</div>` : ''}
          </div>
          <dees-badge .text=${data.status} .type=${data.status === 'ready' ? 'success' : data.status === 'failed' ? 'error' : 'info'}></dees-badge>
        </div>
        <div class="meta">
          ${data.artifact ? `${data.artifact.filename} · ${Math.round(data.artifact.size / 1024 / 1024)} MB · ${data.artifact.sha256.slice(0, 12)}...` : data.errorText || 'Waiting for artifact'}
        </div>
        ${data.status === 'ready'
          ? html`<dees-button .text=${'Download'} .type=${'primary'} @click=${() => this.downloadBuild(buildArg.id)}></dees-button>`
          : ''}
        ${data.logs?.length ? html`<div class="logs">${data.logs.slice(-8).join('\n')}</div>` : ''}
      </div>
    `;
  }

  private async loadBuilds() {
    try {
      const response = await this.fireBaseOsRequest('getBaseOsImageBuilds', {});
      this.builds = response.builds || [];
    } catch (error) {
      console.error('Failed to load BaseOS image builds:', error);
    }
  }

  private async createBuild(formDataArg: any) {
    try {
      const architecture = formDataArg.architecture || 'amd64';
      const imageKind = formDataArg.imageKind || 'balena-raw';
      const sourceImageUrl = formDataArg.sourceImageUrl?.trim() || undefined;
      const selectedSourceImagePreset = formDataArg.sourceImagePreset || 'auto';
      const sourceImagePreset = this.getSourceImagePreset(selectedSourceImagePreset, imageKind, sourceImageUrl);
      const balenaOsVersion = imageKind === 'balena-raw' && !sourceImageUrl
        ? formDataArg.balenaOsVersion?.trim() || 'latest'
        : undefined;
      this.validateBuildForm({
        architecture,
        imageKind,
        selectedSourceImagePreset,
        sourceImagePreset,
        sourceImageUrl,
        wifiSsid: formDataArg.wifiSsid,
        wifiPassword: formDataArg.wifiPassword,
      });
      this.isLoading = true;
      const response = await this.fireBaseOsRequest('createBaseOsImageBuild', {
        build: {
          architecture,
          imageKind,
          cloudlyUrl: formDataArg.cloudlyUrl || window.location.origin,
          hostname: formDataArg.hostname || undefined,
          sourceImageUrl,
          sourceImagePreset,
          balenaOsVersion,
          wifi: formDataArg.wifiSsid
            ? {
                ssid: formDataArg.wifiSsid,
                password: formDataArg.wifiPassword || undefined,
              }
            : undefined,
          sshPublicKey: formDataArg.sshPublicKey || undefined,
        },
      });
      this.builds = [response.build, ...this.builds];
      plugins.deesCatalog.DeesToast.createAndShow({ message: 'BaseOS image build queued', type: 'success' });
    } catch (error: any) {
      plugins.deesCatalog.DeesToast.createAndShow({ message: `Failed to create image build: ${error.message}`, type: 'error' });
    } finally {
      this.isLoading = false;
    }
  }

  private getSourceImagePreset(
    sourceImagePresetArg: string | undefined,
    imageKindArg: string,
    sourceImageUrlArg?: string,
  ) {
    if (imageKindArg !== 'balena-raw' || sourceImageUrlArg || sourceImagePresetArg === 'auto') {
      return undefined;
    }
    if (sourceImagePresetArg === 'custom-url') {
      return undefined;
    }
    return sourceImagePresetArg as TBaseOsImageSourcePreset | undefined;
  }

  private validateBuildForm(optionsArg: {
    architecture: string;
    imageKind: string;
    selectedSourceImagePreset?: string;
    sourceImagePreset?: TBaseOsImageSourcePreset;
    sourceImageUrl?: string;
    wifiSsid?: string;
    wifiPassword?: string;
  }) {
    if (optionsArg.architecture === 'rpi' && optionsArg.imageKind === 'ubuntu-iso') {
      throw new Error('Raspberry Pi BaseOS images require the balenaOS raw image type.');
    }
    if (
      optionsArg.imageKind === 'balena-raw'
      && optionsArg.selectedSourceImagePreset === 'custom-url'
      && !optionsArg.sourceImageUrl
    ) {
      throw new Error('A custom source image URL is required when the custom source preset is selected.');
    }
    if (optionsArg.imageKind === 'balena-raw' && optionsArg.sourceImagePreset) {
      const expectedArchitecture = sourcePresetArchitectures[optionsArg.sourceImagePreset];
      if (expectedArchitecture !== optionsArg.architecture) {
        throw new Error(`${optionsArg.sourceImagePreset} is only valid for ${expectedArchitecture} images.`);
      }
    }
    if (optionsArg.wifiPassword && !optionsArg.wifiSsid) {
      throw new Error('A WiFi SSID is required when a WiFi password is set.');
    }
  }

  private async downloadBuild(buildIdArg: string) {
    const response = await this.fireBaseOsRequest('createBaseOsImageDownloadUrl', {
      buildId: buildIdArg,
    });
    window.location.href = response.url;
  }

  private async fireBaseOsRequest(methodArg: string, payloadArg: Record<string, unknown>) {
    appstate.apiClient.identity = appstate.loginStatePart.getState()?.identity || null as any;
    if (!appstate.apiClient.typedsocketClient) {
      await appstate.apiClient.start();
    }
    const request = appstate.apiClient.typedsocketClient.createTypedRequest<any>(methodArg);
    return await request.fire({
      identity: appstate.apiClient.identity,
      ...payloadArg,
    });
  }
}

declare global {
  interface HTMLElementTagNameMap {
    'cloudly-view-baseos': CloudlyViewBaseOs;
  }
}