import type { GlobalBirthProfile } from "./global-birth-payloads.ts";

const usableActiveStatuses = new Set(["accepted", "confirmed"]);

export const ACCOUNT_BIRTH_SELECT =
  "name,birth_date,reported_birth_time,active_birth_time,birth_time,birth_time_status,country_code,province_code,city_code,district_code,latitude,longitude,timezone_offset,timezone_id" as const;

export type AccountBirthRow = Readonly<{
  name?: unknown;
  birth_date?: unknown;
  reported_birth_time?: unknown;
  active_birth_time?: unknown;
  birth_time?: unknown;
  birth_time_status?: unknown;
  country_code?: unknown;
  province_code?: unknown;
  city_code?: unknown;
  district_code?: unknown;
  latitude?: unknown;
  longitude?: unknown;
  timezone_offset?: unknown;
  timezone_id?: unknown;
}>;

function asAccountBirthRow(row: unknown): AccountBirthRow {
  if (!row || typeof row !== "object" || Array.isArray(row)) return {};
  return row as AccountBirthRow;
}

function text(value: unknown): string | undefined {
  if (typeof value !== "string") return undefined;
  const trimmed = value.trim();
  return trimmed.length > 0 ? trimmed : undefined;
}

function calendarDate(value: unknown): string | undefined {
  if (value instanceof Date && Number.isFinite(value.getTime())) {
    return value.toISOString().slice(0, 10);
  }
  const raw = text(value)?.slice(0, 10);
  return raw && /^\d{4}-\d{2}-\d{2}$/.test(raw) ? raw : undefined;
}

function clock(value: unknown): string | undefined {
  const raw = text(value);
  const match = raw ? /^(\d{1,2}):(\d{2})/.exec(raw) : null;
  if (!match) return undefined;
  const hour = Number.parseInt(match[1], 10);
  const minute = Number.parseInt(match[2], 10);
  if (hour < 0 || hour > 23 || minute < 0 || minute > 59) return undefined;
  return `${String(hour).padStart(2, "0")}:${String(minute).padStart(2, "0")}`;
}

function finiteNumber(value: unknown): number | undefined {
  if (typeof value === "number" && Number.isFinite(value)) return value;
  if (typeof value === "string" && value.trim()) {
    const parsed = Number(value);
    return Number.isFinite(parsed) ? parsed : undefined;
  }
  return undefined;
}

function selectedClock(row: AccountBirthRow): string | undefined {
  const status = text(row.birth_time_status) ?? "";
  const active = clock(row.active_birth_time) ?? clock(row.birth_time);
  const reported = clock(row.reported_birth_time);
  if (usableActiveStatuses.has(status) && active) return active;
  return reported ?? active;
}

export function globalBirthProfileFromAccountRow(row: unknown): GlobalBirthProfile & {
  birthTimeStatus?: string;
} {
  const accountRow = asAccountBirthRow(row);
  return {
    name: text(accountRow.name),
    date: calendarDate(accountRow.birth_date),
    time: selectedClock(accountRow),
    countryCode: text(accountRow.country_code),
    provinceCode: text(accountRow.province_code),
    cityCode: text(accountRow.city_code),
    districtCode: text(accountRow.district_code),
    latitude: finiteNumber(accountRow.latitude) ?? null,
    longitude: finiteNumber(accountRow.longitude) ?? null,
    timezoneOffset: finiteNumber(accountRow.timezone_offset) ?? null,
    timezoneId: text(accountRow.timezone_id),
    birthTimeStatus: text(accountRow.birth_time_status),
  };
}

export function globalBirthProfileFromStoredChart(value: unknown): GlobalBirthProfile | null {
  if (!value || typeof value !== "object" || Array.isArray(value)) return null;
  const record = value as Record<string, unknown>;
  const profile = globalBirthProfileFromAccountRow({
    name: record.name,
    birth_date: record.date ?? record.birth_date,
    reported_birth_time: record.reportedTime ?? record.reported_birth_time,
    active_birth_time: record.time ?? record.active_birth_time,
    birth_time: record.birth_time,
    birth_time_status: record.birthTimeStatus ?? record.birth_time_status,
    country_code: record.countryCode ?? record.country_code,
    province_code: record.provinceCode ?? record.province_code,
    city_code: record.cityCode ?? record.city_code,
    district_code: record.districtCode ?? record.district_code,
    latitude: record.latitude,
    longitude: record.longitude,
    timezone_offset: record.timezoneOffset ?? record.timezone_offset,
    timezone_id: record.timezoneId ?? record.timezone_id,
  });
  if (!profile.date || !profile.time) return null;
  return profile;
}