import { Team } from 'src/teams/entities/team.entity';

export interface CashboxExportRow {
  date: string;
  type: string;
  who: string;
  note: string;
  amount: number;
  runningTotal: number;
}

interface RawRow {
  date: string;
  type: string;
  who: string;
  note: string;
  amount: number;
}

export function buildRows(team: Team, from: string, to: string): CashboxExportRow[] {
  const fromTime = new Date(`${from}T00:00:00.000Z`).getTime();
  const toTime = new Date(`${to}T23:59:59.999Z`).getTime();

  const raw: RawRow[] = [];

  for (const transaction of team.transactions ?? []) {
    if (!transaction.type) continue;
    raw.push({
      date: transaction.date,
      type: transaction.type.name,
      who: 'Teamkasse',
      note: transaction.note,
      amount: Number(transaction.amount),
    });
  }

  for (const player of team.players ?? []) {
    for (const transaction of player.transactions ?? []) {
      if (!transaction.type || transaction.type.name !== 'payment') continue;
      raw.push({
        date: transaction.date,
        type: transaction.type.name,
        who: `${player.firstName} ${player.lastName}`,
        note: transaction.note,
        amount: Number(transaction.amount),
      });
    }
  }

  const filtered = raw
    .filter((row) => {
      const time = new Date(row.date).getTime();
      return time >= fromTime && time <= toTime;
    })
    .sort((a, b) => (a.date < b.date ? -1 : a.date > b.date ? 1 : 0));

  let runningTotal = 0;
  return filtered.map((row) => {
    runningTotal += row.amount;
    return { ...row, runningTotal };
  });
}