/** Tenant and branch endpoints — the Nearle Admin's provisioning surface. */

import { api, WEB } from './client';
import type { AppLocation } from './deliveries';
import type { TenantInfo, TenantLocation } from './types';

/** Everything the tenant-onboarding form collects. */
export interface CreateTenantRequest {
  tenantname: string;
  companyname: string;
  primarycontact: string;
  primaryemail: string;
  /**
   * Who runs the shop — `tenants.firstname`.
   *
   * Asked here because here is the only moment it can be asked. The primary
   * branch and the merchant's own admin login are both created inside
   * `CreateTenantUser`'s transaction, and the login is copied from the tenant
   * row — so a name given now names the business AND the account that will
   * sign in. Left out, both are blank, which is what every merchant on the
   * platform currently has: the store profile prints "—" for Store admin and
   * the account carries no person's name at all.
   *
   * One field, not two: `tenants` has a `firstname` column and no
   * `lastname`, so this is the whole name.
   */
  firstname?: string;
  locationname: string;
  categoryid: number;
  subcategoryid?: number;
  address: string;
  suburb?: string;
  city: string;
  state: string;
  postcode: string;
  latitude?: string;
  longitude?: string;
  moduleid?: number;
  /** The city this merchant trades in. `app_location`, not a branch. */
  applocationid?: number;
  status?: string;
}

/** Everything the branch-onboarding form collects. */
export interface CreateBranchRequest {
  tenantid: number;
  locationname: string;
  email?: string;
  contactno?: string;
  address: string;
  suburb?: string;
  city: string;
  state: string;
  postcode: string;
  latitude?: string;
  longitude?: string;
  opentime?: string;
  closetime?: string;
  deliveryradius?: number;
  deliverymins?: number;
  status?: string;
  /**
   * Who will run this outlet — an existing person, when one has been hired
   * already.
   *
   * Omitted, the backend spawns a login named after the SHOP, on the shop's
   * email address, one per outlet. That was the only option, and it is why two
   * people at a counter shared a credential and nothing recorded which of them
   * did anything.
   *
   * A branch must still arrive with SOMEBODY: name a person here, or give an
   * `email` to spawn one from. The backend refuses a branch with neither,
   * because an outlet nobody can sign in to is a dead end that shows up in
   * every list and is noticed by whoever is standing in the shop.
   */
  operatorid?: number;
}

export interface TenantListQuery {
  pageno?: number;
  pagesize?: number;
  /** `Active` / `InActive`. Omitted, the backend returns every state. */
  status?: string;
  applocationid?: number;
  tenanttype?: string;
  keyword?: string;
}

export const tenantsApi = {
  /**
   * Every tenant on the platform. Deliberately unscoped — this is the
   * Nearle Admin's list, and the backend treats it as the platform-operator
   * endpoint rather than a tenant-scoped one.
   */
  listAll: (query: TenantListQuery = {}) =>
    api.list<TenantInfo>(`${WEB}/tenants/getalltenants`, {
      pageno: query.pageno ?? 1,
      pagesize: query.pagesize ?? 100,
      status: query.status,
      applocationid: query.applocationid,
      tenanttype: query.tenanttype,
      keyword: query.keyword,
    }),

  /**
   * Tenants by approval state — the only way to see the ones awaiting it.
   *
   * `status=pending` is not a status at all: the handler branches on the word
   * and queries `approved = 0` instead (`tenantRepository.go:45-77`). Anything
   * else means `approved = 1 AND status = ?`. So an unapproved merchant is
   * invisible to every other endpoint, including `getalltenants`.
   *
   * Nothing can approve one over HTTP. `approved` is writable only at creation,
   * so this list is a queue to work from, not one to act on.
   */
  byApproval: (status: 'pending' | 'Active' | 'InActive', keyword?: string) =>
    api.list<TenantInfo>(`${WEB}/tenants/search`, { status, keyword }),

  /** Branches under one tenant. `tenantid` is required — omit it and it 400s. */
  locations: (tenantid: number) =>
    api.list<TenantLocation>(`${WEB}/tenants/gettenantlocations`, { tenantid }),

  search: (keyword: string) =>
    api.list<TenantInfo>(`${WEB}/tenants/searchbykeyword`, { keyword }),

  /**
   * Provisions the enterprise, its first outlet, and the primary Administrator
   * account — one transaction writing `tenants`, `ordersequences`, `app_users`
   * (roleid 1, configid forced to 1), `customers`, `customerlocations` and
   * `tenantcustomers`.
   *
   * `createtenantuser`, NOT `createtenantlocation`. The latter takes a
   * `Tenantlocations` and writes a BRANCH under a tenant that already exists —
   * pointing the merchant form at it created an outlet and no merchant.
   *
   * The primary outlet is NESTED. The backend reads it off
   * `Tenants.Tenantlocations` and creates it in the same transaction, so a
   * tenant can never exist without somewhere to trade from.
   */
  createTenant: (body: CreateTenantRequest) =>
    api.post<TenantInfo>(`${WEB}/tenants/createtenantuser`, toTenantBody(body)),

  /**
   * Commissions a branch, and gives it somebody to run it.
   *
   * Pass `operatorid` to place a person you have already hired. Without it the
   * backend spawns a login named after the shop, as it always did — kept so
   * nothing existing changes, but the named person is the better path.
   *
   * `createtenantlocation`, not `createlocation`: only this one returns the
   * created row, and the new `locationid` is what a QR code and every
   * follow-up write need. `createlocation` answers 201 with a message and no
   * `details` at all.
   */
  createBranch: (body: CreateBranchRequest) =>
    api.post<TenantLocation>(`${WEB}/tenants/createtenantlocation`, body),

  updateBranch: (body: Partial<TenantLocation> & { locationid: number }) =>
    api.put<TenantLocation>(`${WEB}/tenants/updatelocation`, body),

  /**
   * A merchant editing their own business record.
   *
   * The first write path `tenants` has ever had. Before it, everything about a
   * shop — its name, its photograph, its licence, how to reach it — was set
   * once at onboarding by a Nearle Admin and could never be changed by anyone.
   *
   * Only merchant-owned columns are written; the backend keeps the allowlist
   * and ignores the rest, so `approved`, `status`, `partnerid` and the billing
   * fields cannot be set from here even if a caller sends them. Anything
   * omitted is left alone rather than blanked.
   */
  updateProfile: (body: { tenantid: number } & Partial<TenantInfo>) =>
    api.put<unknown>(`${WEB}/tenants/updatetenant`, body),

  /**
   * Which delivery partner supplies this merchant's riders.
   *
   * Its own endpoint, not a field on `updateProfile`: `partnerid` is kept out
   * of the merchant-editable allowlist on purpose, because a merchant who could
   * set it would move themselves under another partner's riders and billing.
   *
   * `partnerid: 0` is a real instruction — it means "this merchant uses their
   * own riders" — and the server reads it as sent rather than as absent.
   */
  assignPartner: (tenantid: number, partnerid: number) =>
    api.put<unknown>(`${WEB}/tenants/assignpartner`, { tenantid, partnerid }),

  /**
   * One business, by id — how a store login reads its own record.
   *
   * Not `listAll`. That is `getalltenants`, paginated over 262 merchants, so a
   * shop on page two was simply absent and a profile screen built on it would
   * show nothing for no visible reason.
   */
  byId: (tenantid: number) => api.get<TenantInfo>(`${WEB}/tenants/gettenantinfo`, { tenantid }),

  /**
   * Somebody editing their own name, mobile or email.
   *
   * Not `users/update`. That one writes whatever struct it is handed and checks
   * only the userid — no tenant, no guard on role or branch — so a self-service
   * form built on it would let a branch user promote themselves or move shop.
   * This is scoped to the caller's own account AND business, and writes
   * identity fields only.
   */
  updateOwnProfile: (body: {
    userid: number;
    tenantid: number;
    firstname?: string;
    lastname?: string;
    contactno?: string;
    email?: string;
  }) => api.put<unknown>(`${WEB}/tenants/updateownprofile`, body),
};

/**
 * The merchant form, in the shape `models.Tenants` expects.
 *
 * `configid` and `applocationid` are sent because the account this call spawns
 * is looked up by `configid` at every sign-in, and `applocationid` is the city
 * the tenant trades in. `approved: 1` and `status: 'Active'` are set here
 * because they can only ever be set here — there is no update or approve
 * endpoint, so a tenant created unapproved stays unapproved forever.
 */
function toTenantBody(form: CreateTenantRequest): Record<string, unknown> {
  return {
    tenantname: form.tenantname,
    companyname: form.companyname,
    primaryemail: form.primaryemail,
    primarycontact: form.primarycontact,
    // Written to `tenants.firstname` and copied onto the admin login the same
    // transaction creates — see the note on the field.
    firstname: (form.firstname ?? '').trim(),
    categoryid: form.categoryid,
    subcategoryid: form.subcategoryid ?? 0,
    address: form.address,
    suburb: form.suburb ?? '',
    city: form.city,
    state: form.state,
    postcode: form.postcode,
    latitude: form.latitude ?? '',
    longitude: form.longitude ?? '',
    configid: 1,
    moduleid: form.moduleid ?? 2,
    applocationid: form.applocationid ?? 1,
    approved: 1,
    status: form.status ?? 'Active',
    // The primary outlet, created in the same transaction. Its address
    // defaults to the tenant's — a merchant's first shop is at the address
    // they just typed far more often than not, and it can be edited after.
    tenantlocations: {
      locationname: form.locationname,
      email: form.primaryemail,
      contactno: form.primarycontact,
      address: form.address,
      suburb: form.suburb ?? '',
      city: form.city,
      state: form.state,
      postcode: form.postcode,
      latitude: form.latitude ?? '',
      longitude: form.longitude ?? '',
      applocationid: form.applocationid ?? 1,
      status: 'Active',
    },
  };
}

/** One row of the `app_category` master — the business categories a tenant picks from. */
export interface AppCategory {
  categoryid: number;
  categoryname: string;
}

export const utilsApi = {
  /**
   * The business-category master.
   *
   * Read rather than hardcoded. The old console typed four values into the
   * form and never called this, which means a category added to the master is
   * invisible to onboarding until someone edits the frontend.
   */
  appCategories: () => api.list<AppCategory>(`${WEB}/utils/getappcategories`),

  /**
   * The delivery regions — Coimbatore, Madurai, Nagercoil today.
   *
   * `applocationid` is REQUIRED by the handler and 0 is how you ask for all of
   * them; omitting it answers 400 "Invalid applocationid", which reads as a
   * broken request rather than a missing default.
   */
  appLocations: (applocationid = 0) =>
    api.list<AppLocation>(`${WEB}/utils/getapplocations`, { applocationid }),
};