// Bridges the real tenant-registry contract with the rich design-fixture
// shape that the new portal screens render against.
//
// During M10.2 dev there's no requirement that tenant-registry be up — the
// portal still has to render the design end-to-end. So this loader resolves
// against the fixtures first (which carry the design fields: mono, seats,
// plan label, lifecycle reasons, generated series, etc.) and falls back to
// what tenant-registry returns when a slug isn't in the fixture set.
//
// Once the registry is enriched to carry the design fields end-to-end this
// module collapses into a thin pass-through.

import { tenantBySlug, type TenantRecord } from "@/lib/fixtures";
import { fetchTenantBySlug, type Tenant } from "@/lib/tenant-registry";

export type PortalTenant = TenantRecord;

export async function loadTenantForShell(slug: string): Promise<PortalTenant | null> {
  const fx = tenantBySlug(slug);
  if (fx) return fx;

  // Slug isn't one of the 5 fixture tenants — try the real registry. If
  // the registry isn't reachable we let the error bubble to the layout's
  // notFound() path.
  let live: Tenant | null = null;
  try {
    live = await fetchTenantBySlug(slug);
  } catch {
    return null;
  }
  if (!live) return null;

  // Minimal shim so the shell can render. Design-rich fields fall back to
  // placeholders that won't blow up the layout.
  return {
    id: live.id,
    domain: `${slug}.breakpilot.eu`,
    name: live.name,
    short: live.name,
    mono: live.name.slice(0, 2).toUpperCase(),
    status: live.status,
    legalType: "—",
    city: "—",
    country: "—",
    vat: "—",
    plan: live.plan,
    planCode: live.plan,
    seats: { used: 0, total: 0 },
    monthly: 0,
    contact: "—",
    contactEmail: "—",
    renewal: "—",
    since: live.created_at?.slice(0, 10) ?? "—",
    entitled: [],
    trialing: [],
    trialEnds: live.trial_ends_at ?? undefined,
    seed: 0,
    findingCount: 0,
    products: [],
    findings: [],
    activity: [],
    audit: [],
    invoices: [],
    team: [],
    series: {
      findings30: [],
      evidence30: [],
      controls30: [],
      heatmap: [],
      prodSeries: {},
    },
    metrics: {
      openFindings: 0,
      critical: 0,
      lastScan: "—",
      lastScanDate: "—",
      evidence: 0,
      controlsPassing: 0,
      controlsTotal: 240,
      severity: { critical: 0, high: 0, medium: 0, low: 0 },
      resolved7: 0,
      findingsDelta: 0,
    },
  };
}

// Returns the trial-days-left if any.
export function trialDaysLeft(t: PortalTenant, nowMs: number = Date.now()): number {
  if (t.status !== "trial") return 0;
  if (typeof t.trialDaysLeft === "number") return t.trialDaysLeft;
  if (t.trialEnds) {
    const ms = new Date(t.trialEnds).getTime() - nowMs;
    return Math.max(0, Math.ceil(ms / (24 * 3600 * 1000)));
  }
  return 0;
}