/**
 * Accountability Roster PDF Generator
 *
 * Professional roster document for emergency preparedness.
 * Follows VIPSchedulePDF patterns for consistent styling.
 */

import {
  Document,
  Page,
  Text,
  View,
  StyleSheet,
  Font,
  Image,
} from '@react-pdf/renderer';
import { PdfSettings } from '@/types/settings';

Font.register({
  family: 'Helvetica',
  fonts: [
    { src: 'Helvetica' },
    { src: 'Helvetica-Bold', fontWeight: 'bold' },
  ],
});

interface VIP {
  id: string;
  name: string;
  organization: string | null;
  department: string;
  phone: string | null;
  email: string | null;
  emergencyContactName: string | null;
  emergencyContactPhone: string | null;
  isRosterOnly: boolean;
  partySize: number;
}

interface AccountabilityRosterPDFProps {
  vips: VIP[];
  settings?: PdfSettings | null;
}

const createStyles = (accentColor: string = '#2c3e50', _pageSize: 'LETTER' | 'A4' = 'LETTER') =>
  StyleSheet.create({
    page: {
      padding: 40,
      paddingBottom: 80,
      fontSize: 9,
      fontFamily: 'Helvetica',
      backgroundColor: '#ffffff',
      color: '#333333',
    },

    // Watermark
    watermark: {
      position: 'absolute',
      top: '40%',
      left: '50%',
      transform: 'translate(-50%, -50%) rotate(-45deg)',
      fontSize: 72,
      color: '#888888',
      opacity: 0.2,
      fontWeight: 'bold',
      zIndex: 0,
    },

    // Logo
    logoContainer: {
      marginBottom: 10,
      flexDirection: 'row',
      justifyContent: 'center',
    },
    logo: {
      maxWidth: 130,
      maxHeight: 50,
      objectFit: 'contain',
    },

    // Header
    header: {
      marginBottom: 20,
      borderBottom: `2 solid ${accentColor}`,
      paddingBottom: 15,
    },
    orgName: {
      fontSize: 9,
      color: '#7f8c8d',
      textTransform: 'uppercase',
      letterSpacing: 2,
      marginBottom: 6,
    },
    title: {
      fontSize: 22,
      fontWeight: 'bold',
      color: accentColor,
      marginBottom: 4,
    },
    subtitle: {
      fontSize: 10,
      color: '#7f8c8d',
    },
    customMessage: {
      fontSize: 9,
      color: '#7f8c8d',
      marginTop: 8,
      padding: 8,
      backgroundColor: '#f8f9fa',
      borderLeft: `3 solid ${accentColor}`,
    },
    timestampBar: {
      marginTop: 10,
      paddingTop: 8,
      borderTop: '1 solid #ecf0f1',
      flexDirection: 'row',
      justifyContent: 'space-between',
    },
    timestamp: {
      fontSize: 7,
      color: '#95a5a6',
    },

    // Summary stats row
    summaryRow: {
      flexDirection: 'row',
      marginBottom: 15,
      gap: 10,
    },
    summaryCard: {
      flex: 1,
      padding: 10,
      backgroundColor: '#f8f9fa',
      borderLeft: `3 solid ${accentColor}`,
    },
    summaryValue: {
      fontSize: 18,
      fontWeight: 'bold',
      color: '#2c3e50',
    },
    summaryLabel: {
      fontSize: 8,
      color: '#7f8c8d',
      textTransform: 'uppercase',
      letterSpacing: 0.5,
    },

    // Section
    sectionTitle: {
      fontSize: 10,
      fontWeight: 'bold',
      color: accentColor,
      textTransform: 'uppercase',
      letterSpacing: 1,
      marginBottom: 8,
      paddingBottom: 4,
      borderBottom: `2 solid ${accentColor}`,
    },
    section: {
      marginBottom: 18,
    },

    // Table
    table: {
      borderLeft: '1 solid #dee2e6',
      borderRight: '1 solid #dee2e6',
      borderTop: '1 solid #dee2e6',
    },
    tableHeader: {
      flexDirection: 'row',
      backgroundColor: accentColor,
      minHeight: 24,
    },
    tableHeaderCell: {
      color: '#ffffff',
      fontSize: 7,
      fontWeight: 'bold',
      textTransform: 'uppercase',
      letterSpacing: 0.5,
      padding: 6,
      justifyContent: 'center',
    },
    tableRow: {
      flexDirection: 'row',
      borderBottom: '1 solid #dee2e6',
      minHeight: 28,
    },
    tableRowAlt: {
      backgroundColor: '#f8f9fa',
    },
    tableRowRoster: {
      backgroundColor: '#fef9e7',
    },
    tableRowRosterAlt: {
      backgroundColor: '#fdf3d0',
    },
    tableCell: {
      padding: 5,
      justifyContent: 'center',
    },
    cellName: {
      fontSize: 9,
      fontWeight: 'bold',
      color: '#2c3e50',
    },
    cellDept: {
      fontSize: 7,
      color: '#7f8c8d',
      marginTop: 1,
    },
    cellText: {
      fontSize: 8,
      color: '#34495e',
    },
    cellSmall: {
      fontSize: 7,
      color: '#7f8c8d',
    },
    cellCenter: {
      fontSize: 9,
      fontWeight: 'bold',
      color: '#2c3e50',
      textAlign: 'center',
    },
    cellNoData: {
      fontSize: 7,
      color: '#bdc3c7',
      fontStyle: 'italic',
    },

    // Column widths
    colName: { width: '22%' },
    colOrg: { width: '18%' },
    colContact: { width: '22%' },
    colEmergency: { width: '22%' },
    colParty: { width: '8%' },
    colNotes: { width: '8%' },

    // Footer
    footer: {
      position: 'absolute',
      bottom: 25,
      left: 40,
      right: 40,
      paddingTop: 10,
      borderTop: '1 solid #dee2e6',
    },
    footerContent: {
      flexDirection: 'row',
      justifyContent: 'space-between',
    },
    footerLeft: {
      maxWidth: '60%',
    },
    footerTitle: {
      fontSize: 8,
      fontWeight: 'bold',
      color: '#2c3e50',
      marginBottom: 3,
    },
    footerContact: {
      fontSize: 7,
      color: '#7f8c8d',
      marginBottom: 1,
    },
    footerRight: {
      textAlign: 'right',
    },
    pageNumber: {
      fontSize: 7,
      color: '#95a5a6',
    },

    // Empty state
    emptyState: {
      textAlign: 'center',
      padding: 30,
      color: '#95a5a6',
      fontSize: 11,
    },
  });

const formatDepartment = (dept: string) => {
  switch (dept) {
    case 'OFFICE_OF_DEVELOPMENT':
      return 'Office of Dev';
    case 'ADMIN':
      return 'Admin';
    default:
      return dept;
  }
};

export function AccountabilityRosterPDF({
  vips,
  settings,
}: AccountabilityRosterPDFProps) {
  const config = settings || {
    organizationName: 'VIP Transportation Services',
    accentColor: '#2c3e50',
    contactEmail: 'coordinator@example.com',
    contactPhone: '(555) 123-4567',
    contactLabel: 'Questions or Changes?',
    showDraftWatermark: false,
    showConfidentialWatermark: false,
    showTimestamp: true,
    showAppUrl: false,
    pageSize: 'LETTER' as const,
    logoUrl: null,
    tagline: null,
    headerMessage: null,
    footerMessage: null,
    secondaryContactName: null,
    secondaryContactPhone: null,
  };

  const styles = createStyles(config.accentColor, config.pageSize);

  const generatedAt = new Date().toLocaleString('en-US', {
    month: 'long',
    day: 'numeric',
    year: 'numeric',
    hour: 'numeric',
    minute: '2-digit',
  });

  const activeVips = vips.filter((v) => !v.isRosterOnly).sort((a, b) => a.name.localeCompare(b.name));
  const rosterOnlyVips = vips.filter((v) => v.isRosterOnly).sort((a, b) => a.name.localeCompare(b.name));
  const totalPeople = vips.reduce((sum, v) => sum + (v.partySize || 1), 0);
  const activeCount = activeVips.reduce((sum, v) => sum + (v.partySize || 1), 0);
  const rosterCount = rosterOnlyVips.reduce((sum, v) => sum + (v.partySize || 1), 0);

  const renderTableHeader = () => (
    <View style={styles.tableHeader}>
      <View style={[styles.tableHeaderCell, styles.colName]}>
        <Text>Name</Text>
      </View>
      <View style={[styles.tableHeaderCell, styles.colOrg]}>
        <Text>Organization</Text>
      </View>
      <View style={[styles.tableHeaderCell, styles.colContact]}>
        <Text>Contact</Text>
      </View>
      <View style={[styles.tableHeaderCell, styles.colEmergency]}>
        <Text>Emergency Contact</Text>
      </View>
      <View style={[styles.tableHeaderCell, styles.colParty]}>
        <Text>Party</Text>
      </View>
    </View>
  );

  const renderVipRow = (vip: VIP, index: number, isRoster: boolean) => (
    <View
      key={vip.id}
      style={[
        styles.tableRow,
        isRoster
          ? index % 2 === 1 ? styles.tableRowRosterAlt : styles.tableRowRoster
          : index % 2 === 1 ? styles.tableRowAlt : {},
      ]}
      wrap={false}
    >
      <View style={[styles.tableCell, styles.colName]}>
        <Text style={styles.cellName}>{vip.name}</Text>
        <Text style={styles.cellDept}>{formatDepartment(vip.department)}</Text>
      </View>
      <View style={[styles.tableCell, styles.colOrg]}>
        {vip.organization ? (
          <Text style={styles.cellText}>{vip.organization}</Text>
        ) : (
          <Text style={styles.cellNoData}>-</Text>
        )}
      </View>
      <View style={[styles.tableCell, styles.colContact]}>
        {vip.phone && <Text style={styles.cellText}>{vip.phone}</Text>}
        {vip.email && <Text style={styles.cellSmall}>{vip.email}</Text>}
        {!vip.phone && !vip.email && <Text style={styles.cellNoData}>No contact info</Text>}
      </View>
      <View style={[styles.tableCell, styles.colEmergency]}>
        {vip.emergencyContactName ? (
          <>
            <Text style={styles.cellText}>{vip.emergencyContactName}</Text>
            {vip.emergencyContactPhone && (
              <Text style={styles.cellSmall}>{vip.emergencyContactPhone}</Text>
            )}
          </>
        ) : (
          <Text style={styles.cellNoData}>Not provided</Text>
        )}
      </View>
      <View style={[styles.tableCell, styles.colParty]}>
        <Text style={styles.cellCenter}>{vip.partySize}</Text>
      </View>
    </View>
  );

  return (
    <Document>
      <Page size={config.pageSize} style={styles.page}>
        {/* Watermarks */}
        {config.showDraftWatermark && (
          <View style={styles.watermark} fixed>
            <Text>DRAFT</Text>
          </View>
        )}
        {config.showConfidentialWatermark && (
          <View style={styles.watermark} fixed>
            <Text>CONFIDENTIAL</Text>
          </View>
        )}

        {/* Header */}
        <View style={styles.header}>
          {config.logoUrl && (
            <View style={styles.logoContainer}>
              <Image src={config.logoUrl} style={styles.logo} />
            </View>
          )}

          <Text style={styles.orgName}>{config.organizationName}</Text>
          <Text style={styles.title}>Accountability Roster</Text>
          <Text style={styles.subtitle}>Emergency Preparedness & Personnel Tracking</Text>

          {config.headerMessage && (
            <Text style={styles.customMessage}>{config.headerMessage}</Text>
          )}

          {(config.showTimestamp || config.showAppUrl) && (
            <View style={styles.timestampBar}>
              {config.showTimestamp && (
                <Text style={styles.timestamp}>Generated: {generatedAt}</Text>
              )}
              {config.showAppUrl && (
                <Text style={styles.timestamp}>
                  Latest version: {typeof window !== 'undefined' ? window.location.origin : ''}
                </Text>
              )}
            </View>
          )}
        </View>

        {/* Summary Stats */}
        <View style={styles.summaryRow}>
          <View style={styles.summaryCard}>
            <Text style={styles.summaryValue}>{totalPeople}</Text>
            <Text style={styles.summaryLabel}>Total People</Text>
          </View>
          <View style={styles.summaryCard}>
            <Text style={styles.summaryValue}>{activeCount}</Text>
            <Text style={styles.summaryLabel}>Active VIPs</Text>
          </View>
          <View style={styles.summaryCard}>
            <Text style={styles.summaryValue}>{rosterCount}</Text>
            <Text style={styles.summaryLabel}>Roster Only</Text>
          </View>
        </View>

        {/* Active VIPs Table */}
        {activeVips.length > 0 && (
          <View style={styles.section}>
            <Text style={styles.sectionTitle}>
              Active VIPs ({activeVips.length} entries, {activeCount} people)
            </Text>
            <View style={styles.table}>
              {renderTableHeader()}
              {activeVips.map((vip, i) => renderVipRow(vip, i, false))}
            </View>
          </View>
        )}

        {/* Roster Only Table */}
        {rosterOnlyVips.length > 0 && (
          <View style={styles.section}>
            <Text style={styles.sectionTitle}>
              Roster Only ({rosterOnlyVips.length} entries, {rosterCount} people)
            </Text>
            <View style={styles.table}>
              {renderTableHeader()}
              {rosterOnlyVips.map((vip, i) => renderVipRow(vip, i, true))}
            </View>
          </View>
        )}

        {/* Empty State */}
        {vips.length === 0 && (
          <Text style={styles.emptyState}>No personnel records found.</Text>
        )}

        {/* Custom Footer Message */}
        {config.footerMessage && (
          <View style={styles.section}>
            <Text style={styles.customMessage}>{config.footerMessage}</Text>
          </View>
        )}

        {/* Footer */}
        <View style={styles.footer} fixed>
          <View style={styles.footerContent}>
            <View style={styles.footerLeft}>
              <Text style={styles.footerTitle}>{config.contactLabel}</Text>
              <Text style={styles.footerContact}>{config.contactEmail}</Text>
              <Text style={styles.footerContact}>{config.contactPhone}</Text>
              {config.secondaryContactName && (
                <Text style={styles.footerContact}>
                  {config.secondaryContactName}
                  {config.secondaryContactPhone ? ` - ${config.secondaryContactPhone}` : ''}
                </Text>
              )}
            </View>
            <View style={styles.footerRight}>
              <Text
                style={styles.pageNumber}
                render={({ pageNumber, totalPages }) =>
                  `Page ${pageNumber} of ${totalPages}`
                }
              />
            </View>
          </View>
        </View>
      </Page>
    </Document>
  );
}