1 import {Injectable} from '@angular/core';
2 import {ParamMap} from '@angular/router';
3 import {OrgService} from '@eg/core/org.service';
4 import {CatalogSearchContext, CatalogBrowseContext, CatalogMarcContext,
5 CatalogTermContext, FacetFilter} from './search-context';
6 import {CATALOG_CCVM_FILTERS} from './search-context';
9 export class CatalogUrlService {
11 // consider supporting a param name prefix/namespace
13 constructor(private org: OrgService) { }
16 * Returns a URL query structure suitable for using with
17 * router.navigate(..., {queryParams:...}).
18 * No navigation is performed within.
20 toUrlParams(context: CatalogSearchContext):
21 {[key: string]: string | string[]} {
23 const params: any = {};
25 if (context.searchOrg) {
26 params.org = context.searchOrg.id();
29 if (context.pager.limit) {
30 params.limit = context.pager.limit;
33 if (context.pager.offset) {
34 params.offset = context.pager.offset;
37 // These fields can be copied directly into place
38 ['limit', 'offset', 'sort', 'global', 'showBasket', 'sort']
41 // Only propagate applied values to the URL.
42 params[field] = context[field];
46 if (context.marcSearch.isSearchable()) {
47 const ms = context.marcSearch;
49 params.marcSubfield = [];
50 params.marcValue = [];
52 ms.values.forEach((val, idx) => {
54 params.marcTag.push(ms.tags[idx]);
55 params.marcSubfield.push(ms.subfields[idx]);
56 params.marcValue.push(ms.values[idx]);
61 if (context.identSearch.isSearchable()) {
62 params.identQuery = context.identSearch.value;
63 params.identQueryType = context.identSearch.queryType;
66 if (context.browseSearch.isSearchable()) {
67 params.browseTerm = context.browseSearch.value;
68 params.browseClass = context.browseSearch.fieldClass;
69 if (context.browseSearch.pivot) {
70 params.browsePivot = context.browseSearch.pivot;
74 if (context.termSearch.isSearchable()) {
76 const ts = context.termSearch;
79 params.fieldClass = [];
83 ['format', 'available', 'hasBrowseEntry', 'date1',
84 'date2', 'dateOp', 'groupByMetarecord', 'fromMetarecord']
87 params[field] = ts[field];
91 ts.query.forEach((val, idx) => {
93 params.query.push(ts.query[idx]);
94 params.fieldClass.push(ts.fieldClass[idx]);
95 params.joinOp.push(ts.joinOp[idx]);
96 params.matchOp.push(ts.matchOp[idx]);
100 // CCVM filters are encoded as comma-separated lists
101 Object.keys(ts.ccvmFilters).forEach(code => {
102 if (ts.ccvmFilters[code] &&
103 ts.ccvmFilters[code][0] !== '') {
104 params[code] = ts.ccvmFilters[code].join(',');
108 // Each facet is a JSON encoded blob of class, name, and value
109 if (ts.facetFilters.length) {
111 ts.facetFilters.forEach(facet => {
112 params.facets.push(JSON.stringify({
113 c : facet.facetClass,
120 if (ts.copyLocations.length && ts.copyLocations[0] !== '') {
121 params.copyLocations = ts.copyLocations.join(',');
129 * Creates a new search context from the active route params.
131 fromUrlParams(params: ParamMap): CatalogSearchContext {
132 const context = new CatalogSearchContext();
134 this.applyUrlParams(context, params);
139 applyUrlParams(context: CatalogSearchContext, params: ParamMap): void {
141 // Reset query/filter args. The will be reconstructed below.
145 if (params.get('org')) {
146 context.searchOrg = this.org.get(+params.get('org'));
149 if (val = params.get('limit')) {
150 context.pager.limit = +val;
153 if (val = params.get('offset')) {
154 context.pager.offset = +val;
157 if (val = params.get('sort')) {
161 if (val = params.get('global')) {
162 context.global = val;
165 if (val = params.get('showBasket')) {
166 context.showBasket = val;
169 if (params.get('marcValue')) {
170 context.marcSearch.tags = params.getAll('marcTag');
171 context.marcSearch.subfields = params.getAll('marcSubfield');
172 context.marcSearch.values = params.getAll('marcValue');
175 if (params.get('identQuery')) {
176 context.identSearch.value = params.get('identQuery');
177 context.identSearch.queryType = params.get('identQueryType');
180 if (params.get('browseTerm')) {
181 context.browseSearch.value = params.get('browseTerm');
182 context.browseSearch.fieldClass = params.get('browseClass');
183 if (params.has('browsePivot')) {
184 context.browseSearch.pivot = +params.get('browsePivot');
188 const ts = context.termSearch;
190 // browseEntry and query searches may be facet-limited
191 params.getAll('facets').forEach(blob => {
192 const facet = JSON.parse(blob);
193 ts.addFacet(new FacetFilter(facet.c, facet.n, facet.v));
196 if (params.has('hasBrowseEntry')) {
198 ts.hasBrowseEntry = params.get('hasBrowseEntry');
200 } else if (params.has('query')) {
203 ['format', 'available', 'date1', 'date2',
204 'dateOp', 'groupByMetarecord', 'fromMetarecord']
206 if (params.has(field)) {
207 ts[field] = params.get(field);
212 ['query', 'fieldClass', 'joinOp', 'matchOp'].forEach(field => {
213 const arr = params.getAll(field);
214 if (params.has(field)) {
215 ts[field] = params.getAll(field);
219 CATALOG_CCVM_FILTERS.forEach(code => {
220 const ccvmVal = params.get(code);
222 ts.ccvmFilters[code] = ccvmVal.split(/,/);
224 ts.ccvmFilters[code] = [''];
228 if (params.get('copyLocations')) {
229 ts.copyLocations = params.get('copyLocations').split(/,/);