/* ============================================================
   GOVERNANCE CORE — roles, permissions, status state-machine,
   seed data, reducer + audit trail.  (window.GOV)
   ============================================================ */
(function(){
const now = Date.now();
const H = (h)=> now - h*3600*1000;       // h hours ago
const D = (d)=> now - d*24*3600*1000;     // d days ago

/* ---------- roles ---------- */
const ROLES = {
  partner:  { key:'partner',  label:'Partner User', cls:'role-partner',  land:'dashboard' },
  reviewer: { key:'reviewer', label:'Reviewer',     cls:'role-reviewer', land:'queue' },
  admin:    { key:'admin',    label:'Admin',        cls:'role-admin',    land:'dashboard' },
  founder:  { key:'founder',  label:'Founder',      cls:'role-founder',  land:'dashboard' },
};

/* ---------- status state-machine ---------- */
const STATUS = {
  submitted:    { key:'submitted',    label:'Submitted',         cls:'st-submitted', who:'BHF team' },
  under_review: { key:'under_review', label:'Under Review',      cls:'st-review',    who:'Reviewer / Admin' },
  needs_info:   { key:'needs_info',   label:'Needs Information', cls:'st-needs',     who:'Partner' },
  approved:     { key:'approved',     label:'Approved',          cls:'st-approved',  who:'—' },
  rejected:     { key:'rejected',     label:'Rejected',          cls:'st-rejected',  who:'—' },
  closed:       { key:'closed',       label:'Closed',            cls:'st-closed',    who:'—' },
};
const STATUS_ORDER = ['submitted','under_review','needs_info','approved','rejected','closed'];
const TRANSITIONS = {
  submitted:    ['under_review'],
  under_review: ['needs_info','approved','rejected'],
  needs_info:   ['under_review'],
  approved:     ['closed'],
  rejected:     ['closed'],
  closed:       ['under_review'],            // reopen — admin/founder only
};
const REASON_REQUIRED = ['needs_info','rejected'];

/* which transitions a given user may perform from a status */
function transitionsFor(status, user, settings){
  const r = user.role;
  let allowed = TRANSITIONS[status] || [];
  if(r==='partner') return [];                          // partners respond, never transition
  if(r==='reviewer'){
    if(!settings.reviewersCanDecide) return [];          // governed: reviewer recommends only
    // even when allowed to decide, reviewers cannot reopen a closed case
    return status==='closed' ? [] : allowed;
  }
  // admin & founder: full machine; only founder/admin may reopen closed
  return allowed;
}

/* ---------- permission matrix ---------- */
const MATRIX = {
  view_all_requests: ['admin','founder'],
  view_reports:      ['admin','founder'],
  view_audit:        ['admin','founder'],
  manage_partners:   ['admin','founder'],
  manage_users:      ['admin','founder'],
  manage_settings:   ['founder'],
  assign_reviewer:   ['admin','founder'],
  submit_request:    ['partner'],
  add_internal_note: ['reviewer','admin','founder'],
  view_internal:     ['reviewer','admin','founder'],
  recommend:         ['reviewer'],
  use_queue:         ['reviewer','admin','founder'],
};
function can(user, action, settings){
  if(!user) return false;
  if(action==='change_status'){
    if(user.role==='admin'||user.role==='founder') return true;
    if(user.role==='reviewer') return !!(settings && settings.reviewersCanDecide);
    return false;
  }
  return (MATRIX[action]||[]).includes(user.role);
}
/* can this user OPEN this request at all (row-level scope, RLS-style) */
function canViewRequest(user, req){
  if(!user||!req) return false;
  if(user.role==='partner')  return req.hospitalId === user.hospitalId;
  if(user.role==='reviewer') return req.reviewerId === user.id;
  return true; // admin, founder
}
/* notes a given user is permitted to see */
function visibleNotes(user, req){
  const internalOk = can(user,'view_internal');
  return (req.notes||[]).filter(n => internalOk || n.scope==='partner');
}
function visibleFiles(user, req){
  const internalOk = can(user,'view_internal');
  return (req.files||[]).filter(f => internalOk || f.scope==='partner');
}

/* ---------- nav per role ---------- */
const NAV = {
  partner: [
    {sec:'Workspace'},
    {key:'dashboard', label:'Dashboard',   icon:'home'},
    {key:'submit',    label:'Submit Patient', icon:'plus'},
    {key:'requests',  label:'My Requests', icon:'list'},
  ],
  reviewer: [
    {sec:'Review'},
    {key:'queue',    label:'My Queue',     icon:'inbox'},
  ],
  admin: [
    {sec:'Overview'},
    {key:'dashboard', label:'Dashboard',    icon:'home'},
    {key:'requests',  label:'All Requests', icon:'list'},
    {key:'queue',     label:'My Queue',     icon:'inbox'},
    {sec:'Manage'},
    {key:'partners',  label:'Partners',     icon:'hospital'},
    {key:'users',     label:'Users',        icon:'users'},
    {sec:'Governance'},
    {key:'reports',   label:'Reports',      icon:'chart'},
    {key:'audit',     label:'Audit Log',    icon:'shield'},
  ],
  founder: [
    {sec:'Overview'},
    {key:'dashboard', label:'Dashboard',    icon:'home'},
    {key:'requests',  label:'All Requests', icon:'list'},
    {sec:'Manage'},
    {key:'partners',  label:'Partners',     icon:'hospital'},
    {key:'users',     label:'Users',        icon:'users'},
    {sec:'Governance'},
    {key:'reports',   label:'Reports',      icon:'chart'},
    {key:'audit',     label:'Audit Log',    icon:'shield'},
    {key:'settings',  label:'Settings',     icon:'cog'},
  ],
};

/* ============================================================
   SEED DATA
   ============================================================ */
function seed(){
  const hospitals = [
    {id:'h1', name:'City Care Hospital',    contact:'Dr. Meena Rao',     email:'rao@citycare.in',   phone:'98100 11223', city:'New Delhi',  status:'active',   notes:'MOU signed Aug 2023. High volume.'},
    {id:'h2', name:'Apollo East',           contact:'Dr. Sanjay Sen',    email:'sen@apolloeast.in', phone:'98200 44556', city:'Kolkata',    status:'active',   notes:''},
    {id:'h3', name:'Sunrise Clinic',        contact:'Dr. Priya Iyer',    email:'iyer@sunrise.in',   phone:'90000 77889', city:'Pune',       status:'active',   notes:''},
    {id:'h4', name:'Grace Burns Centre',    contact:'Dr. Ravi Kumar',    email:'ravi@grace.in',     phone:'93000 22110', city:'Chennai',    status:'inactive', notes:'MOU under renewal — deactivated pending paperwork.'},
  ];
  const users = [
    {id:'u1', name:'Dr. Meena Rao',       email:'rao@citycare.in',          role:'partner',  hospitalId:'h1', status:'active',   lastLogin:H(2)},
    {id:'u2', name:'Nurse Anil Gupta',    email:'anil@citycare.in',         role:'partner',  hospitalId:'h1', status:'active',   lastLogin:D(1)},
    {id:'u3', name:'Dr. Sanjay Sen',      email:'sen@apolloeast.in',        role:'partner',  hospitalId:'h2', status:'active',   lastLogin:D(3)},
    {id:'u4', name:'Dr. Ravi Kumar',      email:'ravi@grace.in',            role:'partner',  hospitalId:'h4', status:'disabled', lastLogin:D(40)},
    {id:'r1', name:'Dr. Nabakishor Haobijam', email:'naba@bhf.org',         role:'reviewer', hospitalId:null, status:'active',   lastLogin:H(5)},
    {id:'r2', name:'Dr. Asha Mehta',      email:'asha@bhf.org',             role:'reviewer', hospitalId:null, status:'active',   lastLogin:H(20)},
    {id:'a1', name:'Animesh Chaudhary',   email:'animesh@bhf.org',          role:'admin',    hospitalId:null, status:'active',   lastLogin:H(1)},
    {id:'f1', name:'Dr. Rajeev B. Ahuja', email:'chairman@bhf.org',         role:'founder',  hospitalId:null, status:'active',   lastLogin:H(3)},
  ];
  const mkHist = (arr)=>arr;
  const requests = [
    { id:'B-117', hospitalId:'h1', submittedById:'u1', reviewerId:'r1', status:'needs_info', urgency:'urgent',
      patient:{ref:'PT-2231', initials:'S.K.', age:'27', gender:'Female', diagnosis:'Post-burn contracture, right hand & forearm', condition:'Stable, limited grip'},
      request:{type:'Reconstructive surgery', reason:'Release of contracture to restore hand function; patient is sole earner.', contact:'Dr. Meena Rao', partnerNote:'Family below poverty line; referral attached.'},
      files:[{id:'f1',name:'medical-report.pdf',type:'Medical report',by:'u1',at:D(5),scope:'partner'},
             {id:'f2',name:'hand-xray.jpg',type:'Imaging',by:'u1',at:D(5),scope:'partner'}],
      notes:[{id:'n1',authorId:'r1',scope:'partner',body:'Thank you for the submission. Could you upload a recent lab report (CBC) and confirm the patient’s weight?',at:H(4)},
             {id:'n2',authorId:'r1',scope:'internal',body:'Likely a good candidate. Flagging for Schedule-1 rate confirmation before approval.',at:H(4)}],
      history:mkHist([{from:null,to:'submitted',byId:'u1',at:D(5),reason:''},
               {from:'submitted',to:'under_review',byId:'a1',at:D(4),reason:''},
               {from:'under_review',to:'needs_info',byId:'r1',at:H(4),reason:'Missing recent lab report.'}]),
      createdAt:D(5), updatedAt:H(4) },
    { id:'B-116', hospitalId:'h2', submittedById:'u3', reviewerId:null, status:'submitted', urgency:'normal',
      patient:{ref:'PT-2229', initials:'M.D.', age:'34', gender:'Male', diagnosis:'Facial scarring post kerosene burn', condition:'Healed, scar revision needed'},
      request:{type:'Scar revision', reason:'Improve mobility of lower lip and cosmetic outcome.', contact:'Dr. Sanjay Sen', partnerNote:''},
      files:[{id:'f3',name:'referral-letter.pdf',type:'Referral letter',by:'u3',at:D(2),scope:'partner'}],
      notes:[], history:mkHist([{from:null,to:'submitted',byId:'u3',at:D(2),reason:''}]),
      createdAt:D(2), updatedAt:D(2) },
    { id:'B-114', hospitalId:'h1', submittedById:'u2', reviewerId:'r2', status:'under_review', urgency:'normal',
      patient:{ref:'PT-2219', initials:'R.B.', age:'19', gender:'Female', diagnosis:'Neck contracture limiting extension', condition:'Stable'},
      request:{type:'Reconstructive surgery', reason:'Restore neck movement after thermal burn.', contact:'Nurse Anil Gupta', partnerNote:''},
      files:[{id:'f4',name:'clinical-photos.zip',type:'Imaging',by:'u2',at:D(6),scope:'partner'}],
      notes:[{id:'n3',authorId:'r2',scope:'internal',body:'Reviewing surgical plan with Dr. Haobijam tomorrow.',at:D(1)}],
      history:mkHist([{from:null,to:'submitted',byId:'u2',at:D(6),reason:''},{from:'submitted',to:'under_review',byId:'a1',at:D(5),reason:''}]),
      createdAt:D(6), updatedAt:D(1) },
    { id:'B-109', hospitalId:'h3', submittedById:'u3', reviewerId:'r2', status:'approved', urgency:'low',
      patient:{ref:'PT-2204', initials:'T.N.', age:'42', gender:'Male', diagnosis:'Axillary contracture, left', condition:'Stable'},
      request:{type:'Reconstructive surgery', reason:'Release contracture to restore arm abduction.', contact:'Dr. Priya Iyer', partnerNote:''},
      files:[{id:'f5',name:'medical-report.pdf',type:'Medical report',by:'u3',at:D(12),scope:'partner'}],
      notes:[{id:'n4',authorId:'a1',scope:'partner',body:'Approved. Our team will coordinate scheduling with your hospital.',at:D(3)}],
      history:mkHist([{from:null,to:'submitted',byId:'u3',at:D(12),reason:''},{from:'submitted',to:'under_review',byId:'a1',at:D(10),reason:''},{from:'under_review',to:'approved',byId:'a1',at:D(3),reason:''}]),
      createdAt:D(12), updatedAt:D(3) },
    { id:'B-103', hospitalId:'h2', submittedById:'u3', reviewerId:'r1', status:'rejected', urgency:'normal',
      patient:{ref:'PT-2190', initials:'K.P.', age:'55', gender:'Female', diagnosis:'Chronic wound, non-burn origin', condition:'Stable'},
      request:{type:'Reconstructive surgery', reason:'Wound coverage requested.', contact:'Dr. Sanjay Sen', partnerNote:''},
      files:[], notes:[{id:'n5',authorId:'r1',scope:'partner',body:'After review, this case falls outside BHF’s burn-survivor mandate. We’re unable to proceed but can suggest other resources.',at:D(8)}],
      history:mkHist([{from:null,to:'submitted',byId:'u3',at:D(14),reason:''},{from:'submitted',to:'under_review',byId:'a1',at:D(11),reason:''},{from:'under_review',to:'rejected',byId:'r1',at:D(8),reason:'Outside burn-survivor mandate.'}]),
      createdAt:D(14), updatedAt:D(8) },
    { id:'B-098', hospitalId:'h1', submittedById:'u1', reviewerId:'r2', status:'closed', urgency:'low',
      patient:{ref:'PT-2175', initials:'L.S.', age:'31', gender:'Female', diagnosis:'Hand contracture, completed', condition:'Recovered'},
      request:{type:'Reconstructive surgery', reason:'Completed case — archived.', contact:'Dr. Meena Rao', partnerNote:''},
      files:[], notes:[], history:mkHist([{from:null,to:'submitted',byId:'u1',at:D(40),reason:''},{from:'submitted',to:'under_review',byId:'a1',at:D(38),reason:''},{from:'under_review',to:'approved',byId:'a1',at:D(30),reason:''},{from:'approved',to:'closed',byId:'a1',at:D(20),reason:''}]),
      createdAt:D(40), updatedAt:D(20) },
  ];
  const audit = [
    {id:'au1', action:'status_change', actorId:'r1', target:'B-117', detail:'Under Review → Needs Information · “Missing recent lab report.”', at:H(4)},
    {id:'au2', action:'login',         actorId:'a1', target:'—',    detail:'Signed in from 49.36.x.x', at:H(1)},
    {id:'au3', action:'assignment',    actorId:'a1', target:'B-114', detail:'Assigned reviewer: Dr. Asha Mehta', at:D(5)},
    {id:'au4', action:'file_download', actorId:'r2', target:'B-114', detail:'Downloaded clinical-photos.zip', at:D(1)},
    {id:'au5', action:'status_change', actorId:'a1', target:'B-109', detail:'Under Review → Approved', at:D(3)},
    {id:'au6', action:'user_change',   actorId:'f1', target:'u4',    detail:'Disabled user · Dr. Ravi Kumar (Grace Burns Centre)', at:D(38)},
  ];
  return {
    hospitals, users, requests, audit,
    settings:{ reviewersCanDecide:false },
    seq:118,
    sessionUserId:null,
  };
}

window.GOV = {
  ROLES, STATUS, STATUS_ORDER, TRANSITIONS, REASON_REQUIRED, NAV, MATRIX,
  transitionsFor, can, canViewRequest, visibleNotes, visibleFiles, seed,
};
window.StoreCtx = React.createContext(null);
window.useStore = ()=> React.useContext(window.StoreCtx);
})();