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f77eb73b | 1 | import { SortMeta } from 'primeng/api' |
feb34f6b C |
2 | import { HttpParams } from '@angular/common/http' |
3 | import { Injectable } from '@angular/core' | |
4 | import { ComponentPaginationLight } from './component-pagination.model' | |
df98563e | 5 | import { RestPagination } from './rest-pagination' |
de59c48f | 6 | |
feb34f6b C |
7 | interface QueryStringFilterPrefixes { |
8 | [key: string]: { | |
9 | prefix: string | |
10 | handler?: (v: string) => string | number | |
11 | multiple?: boolean | |
8491293b | 12 | isBoolean?: boolean |
feb34f6b C |
13 | } |
14 | } | |
15 | ||
4beda9e1 C |
16 | type ParseQueryStringFilters <K extends keyof any> = Partial<Record<K, string | number | boolean | (string | number | boolean)[]>> |
17 | type ParseQueryStringFiltersResult <K extends keyof any> = ParseQueryStringFilters<K> & { search?: string } | |
feb34f6b | 18 | |
de59c48f C |
19 | @Injectable() |
20 | export class RestService { | |
21 | ||
d592e0a9 C |
22 | addRestGetParams (params: HttpParams, pagination?: RestPagination, sort?: SortMeta | string) { |
23 | let newParams = params | |
de59c48f | 24 | |
d592e0a9 C |
25 | if (pagination !== undefined) { |
26 | newParams = newParams.set('start', pagination.start.toString()) | |
27 | .set('count', pagination.count.toString()) | |
de59c48f C |
28 | } |
29 | ||
d592e0a9 C |
30 | if (sort !== undefined) { |
31 | let sortString = '' | |
32 | ||
33 | if (typeof sort === 'string') { | |
34 | sortString = sort | |
35 | } else { | |
36 | const sortPrefix = sort.order === 1 ? '' : '-' | |
37 | sortString = sortPrefix + sort.field | |
38 | } | |
39 | ||
40 | newParams = newParams.set('sort', sortString) | |
de59c48f C |
41 | } |
42 | ||
d592e0a9 | 43 | return newParams |
de59c48f C |
44 | } |
45 | ||
3da38d6e C |
46 | addArrayParams (params: HttpParams, name: string, values: (string | number)[]) { |
47 | for (const v of values) { | |
48 | params = params.append(name, v) | |
49 | } | |
50 | ||
51 | return params | |
52 | } | |
53 | ||
c199c427 | 54 | addObjectParams (params: HttpParams, object: { [ name: string ]: any }) { |
f37dc0dd C |
55 | for (const name of Object.keys(object)) { |
56 | const value = object[name] | |
1ebddadd | 57 | if (value === undefined || value === null) continue |
f37dc0dd | 58 | |
9abd170d | 59 | if (Array.isArray(value)) { |
3da38d6e | 60 | params = this.addArrayParams(params, name, value) |
f37dc0dd C |
61 | } else { |
62 | params = params.append(name, value) | |
63 | } | |
64 | } | |
65 | ||
66 | return params | |
67 | } | |
68 | ||
4beda9e1 | 69 | componentToRestPagination (componentPagination: ComponentPaginationLight): RestPagination { |
4635f59d C |
70 | const start: number = (componentPagination.currentPage - 1) * componentPagination.itemsPerPage |
71 | const count: number = componentPagination.itemsPerPage | |
72 | ||
73 | return { start, count } | |
74 | } | |
feb34f6b | 75 | |
4beda9e1 C |
76 | /* |
77 | * Returns an object containing the filters and the remaining search | |
78 | */ | |
79 | parseQueryStringFilter <T extends QueryStringFilterPrefixes> (q: string, prefixes: T): ParseQueryStringFiltersResult<keyof T> { | |
feb34f6b C |
80 | if (!q) return {} |
81 | ||
cc0e0d32 C |
82 | // Tokenize the strings using spaces that are not in quotes |
83 | const tokens = q.match(/(?:[^\s"]+|"[^"]*")+/g) | |
84 | .filter(token => !!token) | |
feb34f6b C |
85 | |
86 | // Build prefix array | |
87 | const prefixeStrings = Object.values(prefixes) | |
88 | .map(p => p.prefix) | |
89 | ||
90 | // Search is the querystring minus defined filters | |
91 | const searchTokens = tokens.filter(t => { | |
92 | return prefixeStrings.every(prefixString => t.startsWith(prefixString) === false) | |
93 | }) | |
94 | ||
4beda9e1 | 95 | const additionalFilters: ParseQueryStringFilters<keyof T> = {} |
feb34f6b | 96 | |
4beda9e1 | 97 | for (const prefixKey of Object.keys(prefixes) as (keyof T)[]) { |
feb34f6b C |
98 | const prefixObj = prefixes[prefixKey] |
99 | const prefix = prefixObj.prefix | |
100 | ||
101 | const matchedTokens = tokens.filter(t => t.startsWith(prefix)) | |
102 | .map(t => t.slice(prefix.length)) // Keep the value filter | |
1a7d0887 | 103 | .map(t => t.replace(/^"|"$/g, '')) // Remove "" |
feb34f6b C |
104 | .map(t => { |
105 | if (prefixObj.handler) return prefixObj.handler(t) | |
106 | ||
1a7d0887 C |
107 | if (prefixObj.isBoolean) { |
108 | if (t === 'true') return true | |
109 | if (t === 'false') return false | |
110 | ||
111 | return undefined | |
112 | } | |
113 | ||
feb34f6b C |
114 | return t |
115 | }) | |
1a7d0887 | 116 | .filter(t => t !== null && t !== undefined) |
feb34f6b C |
117 | |
118 | if (matchedTokens.length === 0) continue | |
119 | ||
120 | additionalFilters[prefixKey] = prefixObj.multiple === true | |
121 | ? matchedTokens | |
122 | : matchedTokens[0] | |
123 | } | |
124 | ||
125 | return { | |
1ebddadd | 126 | search: searchTokens.join(' ') || undefined, |
feb34f6b C |
127 | |
128 | ...additionalFilters | |
129 | } | |
130 | } | |
de59c48f | 131 | } |