import type {
  FlightReportPayload,
  FlightReportStatusResult,
  NormalizedFlightReportRequest
} from "./types.js";
import { isPlausibleEmail } from "./input-validation.js";

export function getFlightReportStatus(
  normalizedRequest: NormalizedFlightReportRequest,
  payload?: FlightReportPayload | null
): FlightReportStatusResult {
  if (normalizedRequest.missingSearchInputs.length) {
    return {
      needsMissingInputs: normalizedRequest.missingSearchInputs,
      readyToSearch: false,
      pdfReady: false,
      emailReady: false,
      chatSummaryReady: false,
      terminalOutcome: "missing-inputs",
      degraded: false,
      degradedReasons: [],
      blockingReason: "Missing search-critical trip inputs."
    };
  }

  if (!payload) {
    return {
      needsMissingInputs: normalizedRequest.missingDeliveryInputs,
      readyToSearch: true,
      pdfReady: false,
      emailReady: false,
      chatSummaryReady: false,
      terminalOutcome: "report-incomplete",
      degraded: false,
      degradedReasons: [],
      lastCompletedPhase: "intake",
      blockingReason: "Search and report assembly have not completed yet."
    };
  }

  const allSourcesFailed =
    payload.sourceFindings.length > 0 &&
    payload.sourceFindings.every((finding) => finding.status === "blocked") &&
    payload.quotes.length === 0;

  if (allSourcesFailed) {
    return {
      needsMissingInputs: normalizedRequest.missingDeliveryInputs,
      readyToSearch: true,
      pdfReady: false,
      emailReady: false,
      chatSummaryReady: true,
      terminalOutcome: "all-sources-failed",
      degraded: true,
      degradedReasons: payload.degradedReasons,
      lastCompletedPhase: payload.lastCompletedPhase || "search",
      blockingReason: "All configured travel sources failed or were blocked."
    };
  }

  const reportComplete = Boolean(
    payload.quotes.length &&
      payload.rankedOptions.length &&
      payload.executiveSummary.length
  );
  const validRecipient = isPlausibleEmail(normalizedRequest.request.recipientEmail);

  return {
    needsMissingInputs: validRecipient ? [] : normalizedRequest.missingDeliveryInputs,
    readyToSearch: true,
    pdfReady: reportComplete,
    emailReady: reportComplete && validRecipient,
    chatSummaryReady:
      payload.quotes.length > 0 ||
      payload.rankedOptions.length > 0 ||
      payload.executiveSummary.length > 0,
    terminalOutcome: reportComplete ? "ready" : "report-incomplete",
    degraded: payload.degradedReasons.length > 0,
    degradedReasons: payload.degradedReasons,
    lastCompletedPhase: payload.lastCompletedPhase,
    blockingReason: reportComplete ? undefined : "The report payload is still incomplete."
  };
}