import {
  aggregateAcrossTeams,
  formatAggregationResult,
  loopGet,
} from "../lib/loop-api.js";

// ─── Loop API V2: /people ──────────────────────────────────────
// Fields: id, title, firstName, lastName, contactNotes,
//   primaryPhone, primaryPhoneType, primaryPhoneNotes,
//   primaryEmail, primaryEmailType, primaryEmailNotes,
//   gdprGeneralMarketing, gdprPropertyMatching, gdprThirdParties,
//   communicationCall, communicationEmail, communicationPost, communicationText
// ────────────────────────────────────────────────────────────────
interface LoopPersonSummary {
  id: number;
  title?: string;
  firstName?: string;
  lastName?: string;
  contactNotes?: string;
  primaryPhone?: string;
  primaryPhoneType?: string;
  primaryEmail?: string;
  primaryEmailType?: string;
  [key: string]: unknown;
}

// ─── Loop API V2: /people/buyers ───────────────────────────────
// Fields: id, buyerGroupName, buyerIsGroup, maxPrice, minBeds,
//   position, sellingPosition, purchaseReason, financiallyVerified,
//   mortgageOffered, insuranceOffered, offerCount, acceptedOfferCount,
//   viewingCount, upcomingViewingCount
// ────────────────────────────────────────────────────────────────
interface LoopBuyerSummary {
  id: number;
  buyerGroupName?: string;
  buyerIsGroup?: boolean;
  maxPrice?: number | null;
  minBeds?: number;
  position?: string;
  sellingPosition?: string | null;
  purchaseReason?: string | null;
  financiallyVerified?: string | null;
  mortgageOffered?: string | null;
  insuranceOffered?: string | null;
  offerCount?: number;
  acceptedOfferCount?: number;
  viewingCount?: number;
  upcomingViewingCount?: number;
  [key: string]: unknown;
}

// ─── Loop API V2: /people/sellers ──────────────────────────────
// Fields: id, sellerGroupName, sellerIsGroup, propertyId,
//   propertyStatus, propertyType, propertyAddress, price,
//   offerCount, acceptedOfferCount, viewingCount, upcomingViewingCount
// ────────────────────────────────────────────────────────────────
interface LoopSellerSummary {
  id: number;
  sellerGroupName?: string;
  sellerIsGroup?: boolean;
  propertyId?: number;
  propertyStatus?: string;
  propertyType?: string;
  propertyAddress?: string;
  price?: number;
  offerCount?: number;
  acceptedOfferCount?: number;
  viewingCount?: number;
  upcomingViewingCount?: number;
  [key: string]: unknown;
}

type PeopleRole = "buyers" | "sellers" | "renters" | "landlords";

export async function peopleSearch(params: {
  accountId: string;
  role?: PeopleRole;
  searchTerm?: string;
  // Role-specific filters (buyers)
  maxPrice?: number;
  minBeds?: number;
  searchAreas?: string;
  propertyTypes?: string;
  // Role-specific filters (sellers/landlords)
  startDate?: string;
  endDate?: string;
  minPrice?: number;
  // Role-specific filters (renters)
  maxRent?: number;
  teamName?: string;
  limit?: number;
}): Promise<string> {
  const {
    accountId, role, searchTerm,
    maxPrice, minBeds, searchAreas, propertyTypes,
    startDate, endDate, minPrice, maxRent,
    teamName, limit,
  } = params;

  // Role-specific endpoints return different schemas — use a generic record
  // type for aggregation, then cast per-role in the formatter.
  const result = await aggregateAcrossTeams<Record<string, unknown>>(
    accountId,
    "people",
    "loop-people-search",
    async (apiKey, team) => {
      const qp: string[] = [];
      if (searchTerm) qp.push(`SearchTerm=${encodeURIComponent(searchTerm)}`);

      if (role === "buyers") {
        if (maxPrice != null) qp.push(`MaxPrice=${maxPrice}`);
        if (minBeds != null) qp.push(`MinBeds=${minBeds}`);
        if (searchAreas) qp.push(`SearchAreas=${encodeURIComponent(searchAreas)}`);
        if (propertyTypes) qp.push(`PropertyTypes=${encodeURIComponent(propertyTypes)}`);
      } else if (role === "sellers" || role === "landlords") {
        if (startDate) qp.push(`StartDate=${encodeURIComponent(startDate)}`);
        if (endDate) qp.push(`EndDate=${encodeURIComponent(endDate)}`);
        if (minPrice != null) qp.push(`MinPrice=${minPrice}`);
        if (maxPrice != null) qp.push(`MaxPrice=${maxPrice}`);
      } else if (role === "renters") {
        if (maxRent != null) qp.push(`MaxRent=${maxRent}`);
        if (minBeds != null) qp.push(`MinBeds=${minBeds}`);
        if (searchAreas) qp.push(`SearchAreas=${encodeURIComponent(searchAreas)}`);
        if (propertyTypes) qp.push(`PropertyTypes=${encodeURIComponent(propertyTypes)}`);
      } else {
        // Generic /people endpoint
        if (startDate) qp.push(`StartDate=${encodeURIComponent(startDate)}`);
        if (endDate) qp.push(`EndDate=${encodeURIComponent(endDate)}`);
      }

      const query = qp.length > 0 ? `?${qp.join("&")}` : "";
      const basePath = role ? `/people/${role}` : "/people";
      const path = `${basePath}${query}`;
      const data = await loopGet<Record<string, unknown>[]>(apiKey, path, "loop-people-search", team);
      return Array.isArray(data) ? data : [];
    },
    { teamName, limitPerTeam: limit ?? 50, limitTotal: limit ?? 200 }
  );

  const entityName = role ?? "people";
  return formatAggregationResult(
    result,
    (record) => formatPersonRecord(record, role),
    entityName
  );
}

function formatPersonRecord(record: Record<string, unknown>, role?: PeopleRole): string {
  if (role === "buyers") {
    const p = record as unknown as LoopBuyerSummary;
    const name = p.buyerGroupName ?? "Unknown";
    const id = p.id != null ? ` [ID: ${p.id}]` : "";
    const price = p.maxPrice != null ? ` — max £${p.maxPrice.toLocaleString("en-GB")}` : "";
    const beds = p.minBeds ? ` ${p.minBeds}+ beds` : "";
    const position = p.position && p.position !== "none" ? ` (${p.position})` : "";
    const viewings = p.viewingCount ? ` | ${p.viewingCount} viewing${p.viewingCount !== 1 ? "s" : ""}` : "";
    const offers = p.offerCount ? ` | ${p.offerCount} offer${p.offerCount !== 1 ? "s" : ""}` : "";
    return `- ${name}${id}${price}${beds}${position}${viewings}${offers}`;
  }

  if (role === "sellers" || role === "landlords") {
    const p = record as unknown as LoopSellerSummary;
    const name = p.sellerGroupName ?? "Unknown";
    const id = p.id != null ? ` [ID: ${p.id}]` : "";
    const addr = p.propertyAddress ? ` — ${p.propertyAddress}` : "";
    const price = p.price != null ? ` £${p.price.toLocaleString("en-GB")}` : "";
    const status = p.propertyStatus ? ` [${p.propertyStatus}]` : "";
    const viewings = p.viewingCount ? ` | ${p.viewingCount} viewing${p.viewingCount !== 1 ? "s" : ""}` : "";
    const offers = p.offerCount ? ` | ${p.offerCount} offer${p.offerCount !== 1 ? "s" : ""}` : "";
    return `- ${name}${id}${addr}${price}${status}${viewings}${offers}`;
  }

  // Generic /people or /people/renters — uses PersonSummary schema
  const p = record as unknown as LoopPersonSummary;
  const name = [p.firstName, p.lastName].filter(Boolean).join(" ") || "Unknown";
  const id = p.id != null ? ` [ID: ${p.id}]` : "";
  const contact = p.primaryEmail ?? p.primaryPhone ?? "";
  const title = p.title?.trim() ? `${p.title.trim()} ` : "";
  return `- ${title}${name}${id}${contact ? ` <${contact}>` : ""}`;
}