import type { Template } from '@pdfme/common';

import type { PipelineData } from '@/lib/services/report-generators';

export const pipelineReportTemplate: Template = {
  basePdf: 'BLANK_PDF' as unknown as string,
  schemas: [
    [
      {
        name: 'reportTitle',
        type: 'text',
        position: { x: 20, y: 15 },
        width: 170,
        height: 12,
        fontSize: 20,
      },
      {
        name: 'portName',
        type: 'text',
        position: { x: 20, y: 30 },
        width: 130,
        height: 8,
        fontSize: 11,
      },
      {
        name: 'generatedAt',
        type: 'text',
        position: { x: 140, y: 30 },
        width: 50,
        height: 8,
        fontSize: 9,
      },
      {
        name: 'summaryText',
        type: 'text',
        position: { x: 20, y: 50 },
        width: 170,
        height: 100,
        fontSize: 10,
      },
      {
        name: 'detailsText',
        type: 'text',
        position: { x: 20, y: 160 },
        width: 170,
        height: 100,
        fontSize: 9,
      },
    ],
  ],
};

export function buildPipelineInputs(
  data: PipelineData,
  portName?: string,
): Record<string, string>[] {
  const stageOrder = [
    'open',
    'details_sent',
    'in_communication',
    'eoi_sent',
    'eoi_signed',
    'deposit_10pct',
    'contract_sent',
    'contract_signed',
    'completed',
  ];

  const summaryLines = stageOrder
    .filter((stage) => (data.stageCounts[stage] ?? 0) > 0)
    .map((stage) => {
      const label = stage.replace(/_/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase());
      return `${label}: ${data.stageCounts[stage] ?? 0} interest(s)`;
    });

  // Include stages not in standard order
  const unknownStages = Object.keys(data.stageCounts).filter((s) => !stageOrder.includes(s));
  for (const stage of unknownStages) {
    summaryLines.push(`${stage}: ${data.stageCounts[stage]} interest(s)`);
  }

  const totalInterests = Object.values(data.stageCounts).reduce((a, b) => a + b, 0);
  summaryLines.unshift(`Total Active Interests: ${totalInterests}`);
  summaryLines.unshift('Pipeline Stage Breakdown');
  summaryLines.unshift('─────────────────────');

  const detailLines = ['Top Interests by Value', '─────────────────────'];
  if (data.topInterests.length === 0) {
    detailLines.push('No interests with linked berths found.');
  } else {
    data.topInterests.forEach((interest, i) => {
      const price = interest.berthPrice
        ? `Berth Price: ${Number(interest.berthPrice).toLocaleString()}`
        : 'No berth linked';
      const stage = interest.pipelineStage
        .replace(/_/g, ' ')
        .replace(/\b\w/g, (c) => c.toUpperCase());
      detailLines.push(`${i + 1}. Stage: ${stage}  |  ${price}`);
    });
  }

  return [
    {
      reportTitle: 'Pipeline Summary Report',
      portName: portName ?? 'Port Nimara',
      generatedAt: `Generated: ${new Date(data.generatedAt).toLocaleString('en-GB')}`,
      summaryText: summaryLines.join('\n'),
      detailsText: detailLines.join('\n'),
    },
  ];
}