Open-ILS/src/eg2/src/app/staff/share/hold.service.ts

   1 /**
   2  * Common code for mananging holdings
   3  */
   4 import {Injectable, EventEmitter} from '@angular/core';
   5 import {Observable} from 'rxjs';
   6 import {map, mergeMap} from 'rxjs/operators';
   7 import {IdlObject} from '@eg/core/idl.service';
   8 import {NetService} from '@eg/core/net.service';
   9 import {PcrudService} from '@eg/core/pcrud.service';
  10 import {EventService, EgEvent} from '@eg/core/event.service';
  11 import {AuthService} from '@eg/core/auth.service';
  12 import {BibRecordService,
  13     BibRecordSummary} from '@eg/share/catalog/bib-record.service';
  14
  15 // Response from a place-holds API call.
  16 export interface HoldRequestResult {
  17     success: boolean;
  18     holdId?: number;
  19     evt?: EgEvent;
  20 }
  21
  22 // Values passed to the place-holds API call.
  23 export interface HoldRequest {
  24     holdType: string;
  25     holdTarget: number;
  26     recipient: number;
  27     requestor: number;
  28     pickupLib: number;
  29     override?: boolean;
  30     notifyEmail?: boolean;
  31     notifyPhone?: string;
  32     notifySms?: string;
  33     smsCarrier?: string;
  34     thawDate?: string; // ISO date
  35     frozen?: boolean;
  36     holdableFormats?: {[target: number]: string};
  37     result?: HoldRequestResult;
  38 }
  39
  40 // A fleshed hold request target object containing whatever data is
  41 // available for each hold type / target.  E.g. a TITLE hold will
  42 // not have a value for 'volume', but a COPY hold will, since all
  43 // copies have volumes.  Every HoldRequestTarget will have a bibId and
  44 // bibSummary.  Some values come directly from the API call, others
  45 // applied locally.
  46 export interface HoldRequestTarget {
  47     target: number;
  48     metarecord?: IdlObject;
  49     bibrecord?: IdlObject;
  50     bibId?: number;
  51     bibSummary?: BibRecordSummary;
  52     part?: IdlObject;
  53     volume?: IdlObject;
  54     copy?: IdlObject;
  55     issuance?: IdlObject;
  56     metarecord_filters?: any;
  57 }
  58
  59 @Injectable()
  60 export class HoldService {
  61
  62     constructor(
  63         private evt: EventService,
  64         private net: NetService,
  65         private pcrud: PcrudService,
  66         private auth: AuthService,
  67         private bib: BibRecordService,
  68     ) {}
  69
  70     placeHold(request: HoldRequest): Observable<HoldRequest> {
  71
  72         let method = 'open-ils.circ.holds.test_and_create.batch';
  73         if (request.override) { method = method + '.override'; }
  74
  75         return this.net.request(
  76             'open-ils.circ', method, this.auth.token(), {
  77                 patronid:       request.recipient,
  78                 pickup_lib:     request.pickupLib,
  79                 hold_type:      request.holdType,
  80                 email_notify:   request.notifyEmail,
  81                 phone_notify:   request.notifyPhone,
  82                 thaw_date:      request.thawDate,
  83                 frozen:         request.frozen,
  84                 sms_notify:     request.notifySms,
  85                 sms_carrier:    request.smsCarrier,
  86                 holdable_formats_map: request.holdableFormats
  87             },
  88             [request.holdTarget]
  89         ).pipe(map(
  90             resp => {
  91                 let result = resp.result;
  92                 const holdResult: HoldRequestResult = {success: true};
  93
  94                 // API can return an ID, an array of events, or a hash
  95                 // of info.
  96
  97                 if (Number(result) > 0) {
  98                     // On success, the API returns the hold ID.
  99                     holdResult.holdId = result;
 100                     console.debug(`Hold successfully placed ${result}`);
 101
 102                 } else {
 103                     holdResult.success = false;
 104                     console.info('Hold request failed: ', result);
 105
 106                     if (Array.isArray(result)) { result = result[0]; }
 107
 108                     if (this.evt.parse(result)) {
 109                         holdResult.evt = this.evt.parse(result);
 110                     } else {
 111                         holdResult.evt = this.evt.parse(result.last_event);
 112                     }
 113                 }
 114
 115                 request.result = holdResult;
 116                 return request;
 117             }
 118         ));
 119     }
 120
 121     getHoldTargetMeta(holdType: string, holdTarget: number | number[],
 122         orgId?: number): Observable<HoldRequestTarget> {
 123
 124         const targetIds = [].concat(holdTarget);
 125
 126         return this.net.request(
 127             'open-ils.circ',
 128             'open-ils.circ.hold.get_metadata',
 129             holdType, targetIds, orgId
 130         ).pipe(mergeMap(meta => {
 131             const target: HoldRequestTarget = meta;
 132             target.bibId = target.bibrecord.id();
 133
 134             return this.bib.getBibSummary(target.bibId)
 135             .pipe(map(sum => {
 136                 target.bibSummary = sum;
 137                 return target;
 138             }));
 139         }));
 140     }
 141 }
 142