// The staff chart's sections, shared by its nav, its Record view and its breadcrumb.

export type PatientNavSubSection = { id: string; label: string };
export type PatientNavSection = { id: string; label: string; subSections?: PatientNavSubSection[]; alsoActiveOn?: string[] };

// Lean sections every staff workspace sees.
export const BASE_STAFF_SECTIONS: PatientNavSection[] = [
  { id: "profile", label: "Profile" },
  // Where staff see who acts for the patient and record a parent or guardian for a minor.
  { id: "related-persons", label: "Family & caregivers" },
  { id: "appointments", label: "Appointments" },
  { id: "tasks", label: "Tasks" },
  { id: "insurance", label: "Insurance" },
  // The patient's paperwork. Both routes existed and rendered correctly for weeks with NOTHING in
  // any nav pointing at either - the same failure as My History, which was built, deployed and
  // invisible. It reports as nothing at all: no error, no 404, just a section that is never offered,
  // so the only way to find it is to already know the URL.
  //
  // Intake answers are the reason the patient filled the form in. A clinician who cannot reach them
  // asks the patient the same questions again at the visit - which is the exact re-asking this product
  // exists to stop.
  //
  // In BASE (not CHART) sections on purpose, for the same reason Access Log is: paperwork is
  // front-desk work before it is clinical work. A receptionist checking whether intake came back is
  // the commonest reader of both.
  { id: "questionnaire-responses", label: "Questionnaire Answers" },
  { id: "documents", label: "Documents" },
  { id: "notes", label: "Internal Notes" },
  // - "who has been in this chart". In BASE (not CHART) sections on purpose: the server route
  // admits receptionists as well as practitioners, because they can already read the chart at their own
  // org and the principle is "if you can read the chart, you can read who else read it".
  { id: "access-log", label: "Access Log" },
];

// The chart's clinical lists by group (practitioner workspace only). IDs + sub-section IDs MUST match the
// paths in App.tsx renderPatientRoutes(). Record replaces these groups in the nav and lists them itself.
export const RECORD_SECTION_GROUPS: PatientNavSection[] = [
  { id: "clinical", label: "Clinical", subSections: [
    { id: "family-history", label: "Family History" },
    { id: "allergy-intolerances", label: "Allergies" },
    { id: "conditions", label: "Conditions" },
    { id: "procedures", label: "Procedures" },
    { id: "adverse-events", label: "Adverse Events" },
    { id: "clinical-impressions", label: "Clinical Impressions" },
    { id: "detected-issues", label: "Detected Issues" },
  ]},
  { id: "diagnostics", label: "Diagnostics", subSections: [
    { id: "observations", label: "Observations" },
    { id: "body-structures", label: "Body Structures" },
    { id: "diagnostics-reports", label: "Diagnostic Reports" },
    { id: "media", label: "Media" },
    { id: "imaging-studies", label: "Imaging" },
  ]},
  { id: "medications", label: "Medications", subSections: [
    { id: "medication-statements", label: "Medication Statements" },
    { id: "medication-requests", label: "Medication Requests" },
    { id: "medication-administrations", label: "Administrations" },
    { id: "medication-dispenses", label: "Dispenses" },
    { id: "immunizations", label: "Immunizations" },
    { id: "immunization-evaluations", label: "Immunization Evaluations" },
    { id: "immunization-recommendations", label: "Immunization Recommendations" },
  ]},
  { id: "device-data", label: "Device Data", subSections: [
    { id: "devices", label: "Devices" },
    { id: "device-use-statements", label: "Device Use Statements" },
    { id: "device-requests", label: "Device Requests" },
  ]},
  { id: "care-provision", label: "Care Provision", subSections: [
    { id: "care-plans", label: "Care Plans" },
    { id: "care-teams", label: "Care Teams" },
    { id: "outside-providers", label: "Outside Providers" },
    { id: "goals", label: "Goals" },
    { id: "diagnostic-orders", label: "Tests & Imaging" },
    { id: "nutrition-orders", label: "Nutrition Orders" },
    { id: "referrals", label: "Referrals" },
    { id: "risk-assessments", label: "Risk Assessments" },
    { id: "vision-prescriptions", label: "Vision Prescriptions" },
  ]},
];

export const CHART_SECTIONS: PatientNavSection[] = [
  { id: "record", label: "Record", alsoActiveOn: RECORD_SECTION_GROUPS.map((group) => group.id) },
];

// Encounters/Episodes - practitioner AND receptionist (front-desk starts/arrives encounters).
export const MANAGEMENT_SECTION: PatientNavSection = { id: "management", label: "Management", subSections: [
  { id: "encounters", label: "Encounters" },
  { id: "episodes-of-care", label: "Episodes of Care" },
]};

const CHART_ROOT = /^\/dashboard\/(?:encounters\/[^/]+\/)?patients\/([^/]+)(?:\/(.*))?$/;

/**
 * The staff chart's trail, "Dashboard > Patients > Yusuf Demir > Record": the patient's name only when
 * the loaded patient is the one the address names, and the deepest section the nav can name as the leaf.
 */
export const staffChartCrumbTrail = (
  pathname: string,
  loaded: { id?: string; name?: string } | undefined,
): { path: string; label: string }[] | undefined => {
  const match = CHART_ROOT.exec(pathname.replace(/\/+$/, ""));
  if (!match || match[1] === "import" || match[1] === "new") return undefined;
  const [, id, rest = ""] = match;
  const chart = pathname.slice(0, pathname.indexOf(`/patients/${id}`) + `/patients/${id}`.length);
  const trail = [
    { path: "/dashboard", label: "Dashboard" },
    { path: "/dashboard/patients", label: "Patients" },
    { path: chart, label: loaded?.id === id && loaded.name ? loaded.name : "Patient" },
  ];
  const [first, second] = rest.split("/");
  const sections = [...BASE_STAFF_SECTIONS, ...CHART_SECTIONS, ...RECORD_SECTION_GROUPS, MANAGEMENT_SECTION];
  const section = sections.find((candidate) => candidate.id === first);
  const leaf = section?.subSections?.find((candidate) => candidate.id === second)?.label ?? section?.label;
  if (leaf) trail.push({ path: `${chart}/${rest}`, label: leaf });
  return trail;
};