File size: 5,471 Bytes
9d2d895 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | import { getRpcBaseUrl } from '@/services/rpc-client';
import type { UnrestEvent, ListUnrestEventsResponse } from '@/generated/client/worldmonitor/unrest/v1/service_client';
import type { SocialUnrestEvent, ProtestSeverity, ProtestEventType, ProtestSource } from '@/types';
import { createCircuitBreaker } from '@/utils';
import { getHydratedData } from '@/services/bootstrap';
import { UnrestServiceClient } from '@/services/generated-rpc-clients';
// ---- Client + Circuit Breaker ----
const client = new UnrestServiceClient(getRpcBaseUrl(), { fetch: (...args) => globalThis.fetch(...args) });
const unrestBreaker = createCircuitBreaker<ListUnrestEventsResponse>({
name: 'Unrest Events',
cacheTtlMs: 10 * 60 * 1000,
persistCache: true,
});
// ---- Enum Mapping Functions ----
function mapSeverity(s: string): ProtestSeverity {
switch (s) {
case 'SEVERITY_LEVEL_HIGH': return 'high';
case 'SEVERITY_LEVEL_MEDIUM': return 'medium';
default: return 'low';
}
}
function mapEventType(t: string): ProtestEventType {
switch (t) {
case 'UNREST_EVENT_TYPE_PROTEST': return 'protest';
case 'UNREST_EVENT_TYPE_RIOT': return 'riot';
case 'UNREST_EVENT_TYPE_STRIKE': return 'strike';
case 'UNREST_EVENT_TYPE_DEMONSTRATION': return 'demonstration';
default: return 'civil_unrest';
}
}
function mapSourceType(s: string): ProtestSource {
switch (s) {
case 'UNREST_SOURCE_TYPE_ACLED': return 'acled';
case 'UNREST_SOURCE_TYPE_GDELT': return 'gdelt';
default: return 'rss';
}
}
function mapConfidence(c: string): 'high' | 'medium' | 'low' {
switch (c) {
case 'CONFIDENCE_LEVEL_HIGH': return 'high';
case 'CONFIDENCE_LEVEL_MEDIUM': return 'medium';
default: return 'low';
}
}
// ---- Core Adapter: proto UnrestEvent -> legacy SocialUnrestEvent ----
function toSocialUnrestEvent(e: UnrestEvent): SocialUnrestEvent {
return {
id: e.id,
title: e.title,
summary: e.summary || undefined,
eventType: mapEventType(e.eventType),
city: e.city || undefined,
country: e.country,
region: e.region || undefined,
lat: e.location?.latitude ?? 0,
lon: e.location?.longitude ?? 0,
time: new Date(e.occurredAt),
severity: mapSeverity(e.severity),
fatalities: e.fatalities > 0 ? e.fatalities : undefined,
sources: e.sources,
sourceUrls: e.sourceUrls?.length ? e.sourceUrls : undefined,
sourceType: mapSourceType(e.sourceType),
tags: e.tags.length > 0 ? e.tags : undefined,
actors: e.actors.length > 0 ? e.actors : undefined,
confidence: mapConfidence(e.confidence),
validated: mapConfidence(e.confidence) === 'high',
};
}
// ---- Exported Types ----
export interface ProtestData {
events: SocialUnrestEvent[];
byCountry: Map<string, SocialUnrestEvent[]>;
highSeverityCount: number;
sources: { acled: number; gdelt: number };
}
// ---- ACLED Configuration Heuristic ----
let acledConfigured: boolean | null = null;
// ---- Main Fetch Function ----
const emptyFallback: ListUnrestEventsResponse = {
events: [],
clusters: [],
pagination: undefined,
};
export async function fetchProtestEvents(): Promise<ProtestData> {
const hydrated = getHydratedData('unrestEvents') as ListUnrestEventsResponse | undefined;
if (hydrated?.events?.length) {
const events = hydrated.events.map(toSocialUnrestEvent);
const byCountry = new Map<string, SocialUnrestEvent[]>();
for (const event of events) {
const existing = byCountry.get(event.country) || [];
existing.push(event);
byCountry.set(event.country, existing);
}
const acledCount = events.filter(e => e.sourceType === 'acled').length;
const gdeltCount = events.filter(e => e.sourceType === 'gdelt').length;
if (acledCount > 0) acledConfigured = true;
else if (gdeltCount > 0) acledConfigured = false;
return { events, byCountry, highSeverityCount: events.filter(e => e.severity === 'high').length, sources: { acled: acledCount, gdelt: gdeltCount } };
}
const resp = await unrestBreaker.execute(async () => {
return client.listUnrestEvents({
country: '',
minSeverity: 'SEVERITY_LEVEL_UNSPECIFIED',
start: 0,
end: 0,
pageSize: 0,
cursor: '',
neLat: 0,
neLon: 0,
swLat: 0,
swLon: 0,
});
}, emptyFallback);
const events = resp.events.map(toSocialUnrestEvent);
// Group by country
const byCountry = new Map<string, SocialUnrestEvent[]>();
for (const event of events) {
const existing = byCountry.get(event.country) || [];
existing.push(event);
byCountry.set(event.country, existing);
}
// Count by source
const acledCount = events.filter(e => e.sourceType === 'acled').length;
const gdeltCount = events.filter(e => e.sourceType === 'gdelt').length;
// Update acledConfigured heuristic based on response
if (events.length > 0) {
if (acledCount > 0) {
acledConfigured = true;
} else if (gdeltCount > 0 && acledCount === 0) {
acledConfigured = false;
}
}
// If completely empty response, leave acledConfigured as null
return {
events,
byCountry,
highSeverityCount: events.filter(e => e.severity === 'high').length,
sources: {
acled: acledCount,
gdelt: gdeltCount,
},
};
}
// ---- Status Function ----
export function getProtestStatus(): { acledConfigured: boolean | null; gdeltAvailable: boolean } {
return { acledConfigured, gdeltAvailable: true };
}
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