/**
 * Template email check-in — envoyé À L'UTILISATEUR (le patron de TPE)
 * pour lui demander si une facture donnée a été payée AVANT que la 1re
 * relance ne parte chez son client.
 *
 * Cet email reste **toujours en branding Rubis**, indépendamment du plan
 * de l'org — c'est une communication Rubis → user (méta-produit), pas
 * user → client. Le dispatcher passe donc `DEFAULT_BRAND` ici, jamais
 * les tokens custom.
 */

import * as React from 'react'
import { Section, Text, Button, Heading, Hr } from '@react-email/components'

import type { BrandTokens } from '#services/brand'
import { sp } from './_brand.js'
import { EmailLayout } from './_layout.js'

export type CheckinEmailProps = {
  /** Toujours DEFAULT_BRAND — checkin reste Rubis-branded. */
  tokens: BrandTokens
  invoice: {
    numero: string
    amountFormatted: string
    dueDateFormatted: string
  }
  client: { name: string }
  user: { fullName: string | null }
  paidUrl: string
  pendingUrl: string
  landingUrl?: string | null
}

export function CheckinEmail({
  tokens,
  invoice,
  client,
  user,
  paidUrl,
  pendingUrl,
  landingUrl,
}: CheckinEmailProps) {
  const greeting = user.fullName ? `Bonjour ${user.fullName.split(' ')[0]},` : 'Bonjour,'

  const greetingStyle: React.CSSProperties = {
    fontSize: '14px',
    color: tokens.textMuted,
    margin: `0 0 ${sp.md} 0`,
  }

  const titleStyle: React.CSSProperties = {
    color: tokens.text,
    fontSize: '24px',
    fontWeight: 700,
    letterSpacing: '-0.018em',
    lineHeight: '1.2',
    margin: `0 0 ${sp.md} 0`,
  }

  const emStyle: React.CSSProperties = {
    color: tokens.primary,
    fontStyle: 'normal',
  }

  const leadStyle: React.CSSProperties = {
    color: tokens.textMuted,
    fontSize: '14px',
    lineHeight: '1.6',
    margin: `0 0 ${sp.xl} 0`,
  }

  const invoiceCardStyle: React.CSSProperties = {
    backgroundColor: tokens.white,
    border: `1px solid ${tokens.border}`,
    borderRadius: tokens.radiusCard,
    padding: `${sp.lg} ${sp.xl}`,
    margin: `0 0 ${sp.xl} 0`,
  }

  const invoiceNumeroStyle: React.CSSProperties = {
    fontSize: '13px',
    fontWeight: 600,
    color: tokens.textMuted,
    letterSpacing: '0.02em',
    margin: 0,
  }

  const invoiceClientStyle: React.CSSProperties = {
    fontSize: '13px',
    color: tokens.textVeryMuted,
    margin: `${sp.xs} 0 ${sp.md} 0`,
  }

  const invoiceAmountStyle: React.CSSProperties = {
    fontSize: '28px',
    fontWeight: 800,
    letterSpacing: '-0.02em',
    color: tokens.text,
    margin: 0,
    lineHeight: '1',
    fontVariantNumeric: 'tabular-nums',
  }

  const invoiceDueStyle: React.CSSProperties = {
    fontSize: '12px',
    color: tokens.textVeryMuted,
    margin: `${sp.sm} 0 0 0`,
  }

  const primaryButtonStyle: React.CSSProperties = {
    backgroundColor: tokens.primary,
    color: tokens.buttonText,
    borderRadius: tokens.radiusButton,
    display: 'block',
    textAlign: 'center',
    textDecoration: 'none',
    padding: `${sp.md} ${sp.xl}`,
    fontSize: '15px',
    fontWeight: 600,
    width: '100%',
    boxSizing: 'border-box',
    boxShadow: '0 4px 12px rgba(159, 18, 57, 0.25)',
  }

  const secondaryButtonStyle: React.CSSProperties = {
    backgroundColor: tokens.white,
    color: tokens.text,
    border: `1px solid ${tokens.text}`,
    borderRadius: tokens.radiusButton,
    display: 'block',
    textAlign: 'center',
    textDecoration: 'none',
    padding: `${sp.md} ${sp.xl}`,
    fontSize: '15px',
    fontWeight: 600,
    width: '100%',
    boxSizing: 'border-box',
  }

  const hrStyle: React.CSSProperties = {
    borderColor: tokens.border,
    borderStyle: 'solid',
    borderWidth: '0 0 1px 0',
    margin: `${sp.xl} 0 ${sp.lg} 0`,
  }

  const footnoteStyle: React.CSSProperties = {
    fontSize: '11.5px',
    color: tokens.textVeryMuted,
    lineHeight: '1.5',
    margin: 0,
    fontStyle: 'italic',
  }

  return (
    <EmailLayout
      tokens={tokens}
      preview={`${invoice.numero} (${invoice.amountFormatted}) — payée par ${client.name} ?`}
      brandSubtitle="Confirmation requise"
      landingUrl={landingUrl}
    >
      <Text style={greetingStyle}>{greeting}</Text>

      <Heading as="h1" style={titleStyle}>
        Avez-vous été <em style={emStyle}>payé</em> sur cette facture&nbsp;?
      </Heading>

      <Text style={leadStyle}>
        Aucune relance ne part sans votre validation. Si la facture est déjà
        réglée, on évite l&apos;email inutile et on encaisse +1 rubis.
      </Text>

      <Section style={invoiceCardStyle}>
        <Text style={invoiceNumeroStyle}>{invoice.numero}</Text>
        <Text style={invoiceClientStyle}>{client.name}</Text>
        <Text style={invoiceAmountStyle}>{invoice.amountFormatted}</Text>
        <Text style={invoiceDueStyle}>
          Échéance le <strong>{invoice.dueDateFormatted}</strong>
        </Text>
      </Section>

      <Section style={{ marginTop: 0 }}>
        <Button href={paidUrl} style={primaryButtonStyle}>
          ✓ Oui, la facture est payée
        </Button>
      </Section>
      <Section style={{ marginTop: sp.md }}>
        <Button href={pendingUrl} style={secondaryButtonStyle}>
          Non, toujours en attente — lance les relances
        </Button>
      </Section>

      <Hr style={hrStyle} />

      <Text style={footnoteStyle}>
        Ces liens expirent dans 24h. Vous pouvez aussi répondre directement
        depuis l&apos;app sur la fiche facture.
      </Text>
    </EmailLayout>
  )
}