/**
 * Render helpers for <breakpilot-dsr-portal>
 *
 * Provides DSR_PORTAL_STYLES, buildFormHtml, and buildSuccessHtml.
 * Kept separate from the element class to stay under the 300-LOC target.
 */

import type { DSRRequestType } from '@breakpilot/compliance-sdk-types'
import { COMMON_STYLES } from './base'
import type { DSRTranslations } from './dsr-portal-translations'

// =============================================================================
// STYLES
// =============================================================================

export const DSR_PORTAL_STYLES = `
  ${COMMON_STYLES}

  :host {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
  }

  .portal {
    background: #fff;
  }

  .title {
    margin: 0 0 10px;
    font-size: 24px;
    font-weight: 600;
    color: #1a1a1a;
  }

  .subtitle {
    margin: 0 0 20px;
    color: #666;
  }

  .form-group {
    margin-bottom: 20px;
  }

  .label {
    display: block;
    font-weight: 500;
    margin-bottom: 10px;
  }

  .type-options {
    display: grid;
    gap: 10px;
  }

  .type-option {
    display: flex;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    background: #fff;
    transition: all 0.2s;
  }

  .type-option:hover {
    border-color: #999;
  }

  .type-option.selected {
    border-color: #1a1a1a;
    background: #f5f5f5;
  }

  .type-option input {
    margin-right: 15px;
  }

  .type-name {
    font-weight: 500;
  }

  .type-description {
    font-size: 13px;
    color: #666;
  }

  .input {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
  }

  .input:focus {
    outline: none;
    border-color: #1a1a1a;
  }

  .textarea {
    resize: vertical;
    min-height: 100px;
  }

  .error {
    padding: 12px;
    background: #fef2f2;
    color: #dc2626;
    border-radius: 4px;
    margin-bottom: 15px;
  }

  .btn-submit {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    background: #1a1a1a;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }

  .btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  .disclaimer {
    margin-top: 20px;
    font-size: 12px;
    color: #666;
  }

  .success {
    text-align: center;
    padding: 40px 20px;
    background: #f0fdf4;
    border-radius: 8px;
  }

  .success-icon {
    font-size: 48px;
    margin-bottom: 20px;
  }

  .success-title {
    margin: 0 0 10px;
    color: #166534;
  }

  .success-message {
    margin: 0;
    color: #166534;
  }
`

// =============================================================================
// HTML BUILDERS
// =============================================================================

export interface FormRenderOptions {
  t: DSRTranslations
  selectedType: DSRRequestType | null
  name: string
  email: string
  additionalInfo: string
  isSubmitting: boolean
  error: string | null
}

export function buildFormHtml(styles: string, opts: FormRenderOptions): string {
  const { t, selectedType, name, email, additionalInfo, isSubmitting, error } = opts

  const types: DSRRequestType[] = [
    'ACCESS',
    'RECTIFICATION',
    'ERASURE',
    'PORTABILITY',
    'RESTRICTION',
    'OBJECTION',
  ]

  const typesHtml = types
    .map(
      type => `
    <label class="type-option ${selectedType === type ? 'selected' : ''}">
      <input
        type="radio"
        name="dsrType"
        value="${type}"
        ${selectedType === type ? 'checked' : ''}
      />
      <div>
        <div class="type-name">${t.types[type].name}</div>
        <div class="type-description">${t.types[type].description}</div>
      </div>
    </label>
  `
    )
    .join('')

  const isValid = selectedType && email && name
  const isDisabled = !isValid || isSubmitting

  return `
    <style>${styles}</style>
    <div class="portal">
      <h2 class="title">${t.title}</h2>
      <p class="subtitle">${t.subtitle}</p>

      <form id="dsr-form">
        <div class="form-group">
          <label class="label">${t.requestType} *</label>
          <div class="type-options">
            ${typesHtml}
          </div>
        </div>

        <div class="form-group">
          <label class="label">${t.name} *</label>
          <input
            type="text"
            class="input"
            id="name-input"
            value="${name}"
            placeholder="${t.namePlaceholder}"
            required
          />
        </div>

        <div class="form-group">
          <label class="label">${t.email} *</label>
          <input
            type="email"
            class="input"
            id="email-input"
            value="${email}"
            placeholder="${t.emailPlaceholder}"
            required
          />
        </div>

        <div class="form-group">
          <label class="label">${t.additionalInfo}</label>
          <textarea
            class="input textarea"
            id="info-input"
            placeholder="${t.additionalInfoPlaceholder}"
            rows="4"
          >${additionalInfo}</textarea>
        </div>

        ${error ? `<div class="error">${error}</div>` : ''}

        <button
          type="submit"
          class="btn-submit"
          ${isDisabled ? 'disabled' : ''}
        >
          ${isSubmitting ? t.submitting : t.submit}
        </button>
      </form>

      <p class="disclaimer">${t.disclaimer}</p>
    </div>
  `
}

export function buildSuccessHtml(styles: string, t: DSRTranslations, email: string): string {
  return `
    <style>${styles}</style>
    <div class="portal">
      <div class="success">
        <div class="success-icon">✓</div>
        <h2 class="success-title">${t.successTitle}</h2>
        <p class="success-message">
          ${t.successMessage} ${email}.
        </p>
      </div>
    </div>
  `
}