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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,98 +1,11 @@ | ||
| /* Cache constants */ | ||
| // A cache containing Google Autocomplete results | ||
| const AUTOCOMPLETE_CACHE_OPTIONS = { | ||
| max: 10000, // Max 10000 autocomplete results | ||
| maxAge: 1000 * 60 * 60 * 24 * 5, // Max age in 5 days | ||
| }; | ||
|
|
||
| // A cache containing saved routes IDs to routes | ||
| const ROUTES_CALC_CACHE_OPTIONS = { | ||
| max: 1000, // Max 1000 routes | ||
| maxAge: 1000 * 60 * 15, // Max age in 15 minutes | ||
| }; | ||
|
|
||
| // A cache mapping a /search's request query string to its Google autocomplete predictions | ||
| const QUERY_PREDICTIONS_CACHE_OPTIONS = { | ||
| max: 10000, // Max 1000 predictions | ||
| maxAge: 1000 * 60 * 60 * 24 * 5, // Max age in 5 days | ||
| }; | ||
|
|
||
| /* Count constants */ | ||
| // The minimum fuzzy string matching ratio that a word has to match a target word for /search | ||
| const MIN_FUZZ_RATIO = 75; | ||
|
|
||
| /* Delay Buffer constants */ | ||
| // A buffer to account for routes in past 20 minutes with delays | ||
| const FIRST_DELAY_BUFFER_IN_MINUTES = 20; | ||
| // An additional buffer to account for time needed to walk from current location to bus stop | ||
| const SECOND_DELAY_BUFFER_IN_MINUTES = 40; | ||
|
|
||
| /* Distance & Speed constants */ | ||
| // > 3.0 suggests getting off bus earlier and walk half a mile instead of waiting longer | ||
| const MAX_WALK_DIST_PER_LEG = 2000; | ||
| // The distance (in meters) within which to return Google place results for autocomplete. | ||
| const AUTOCOMPLETE_RADIUS = 24140; | ||
| const WALK_SPEED = 3.0; | ||
|
|
||
| /* Degrees Precision constants */ | ||
| const DEG_MIN_PRECISION = 1; | ||
| const DEG_KM_PRECISION = 2; // 2 degrees of precision is about 1 km, a barely walkable stop | ||
| const DEG_WALK_PRECISION = 3; // 3 degrees of precision is about 111 meters, a walkable stop | ||
| const DEG_NEARBY_PRECISION = 4; // 4 degrees of precision is about 11 meters, a nearby stop | ||
| const DEG_EQ_PRECISION = 5; // 5 degrees of precision is about 1.1 meters, a stop | ||
| const DEG_EXACT_PRECISION = 6; // 6 degrees of precision is about 111 mm, an exact point | ||
| const DEG_MAX_PRECISION = 6; | ||
|
|
||
| /* String & URL constants */ | ||
| const BUS_STOP = 'busStop'; | ||
| const CURRENT_LOCATION = 'Current Location'; | ||
| const GOOGLE_AUTOCOMPLETE_URL = 'https://maps.googleapis.com/maps/api/place/autocomplete/json'; | ||
| const GOOGLE_PLACE = 'googlePlace'; | ||
| const GOOGLE_PLACE_LOCATION = '42.4440,-76.5019'; | ||
| const GOOGLE_PLACES_URL = 'https://maps.googleapis.com/maps/api/place/details/json'; | ||
| const TOKEN_URL = 'https://gateway.api.cloud.wso2.com:443/token'; | ||
|
|
||
| /* Time constants */ | ||
| const SEC_IN_MS = 1000; | ||
| const MIN_IN_MS = SEC_IN_MS * 60; | ||
| const HOUR_IN_MS = MIN_IN_MS * 60; | ||
| const THREE_SEC_IN_MS = 3000; | ||
| const TOKEN_EXPIRATION_WINDOW_IN_MS = 500; | ||
|
|
||
| /* Request constants */ | ||
| const GET_OPTIONS = { | ||
| method: 'GET', | ||
| headers: { 'Cache-Control': 'no-cache' }, | ||
| timeout: THREE_SEC_IN_MS, | ||
| }; | ||
|
|
||
| export default { | ||
| AUTOCOMPLETE_CACHE_OPTIONS, | ||
| BUS_STOP, | ||
| CURRENT_LOCATION, | ||
| DEG_EQ_PRECISION, | ||
| DEG_EXACT_PRECISION, | ||
| DEG_KM_PRECISION, | ||
| DEG_MAX_PRECISION, | ||
| DEG_MIN_PRECISION, | ||
| DEG_NEARBY_PRECISION, | ||
| DEG_WALK_PRECISION, | ||
| FIRST_DELAY_BUFFER_IN_MINUTES, | ||
| GET_OPTIONS, | ||
| GOOGLE_AUTOCOMPLETE_URL, | ||
| GOOGLE_PLACE, | ||
| GOOGLE_PLACE_LOCATION, | ||
| GOOGLE_PLACES_URL, | ||
| HOUR_IN_MS, | ||
| MIN_FUZZ_RATIO, | ||
| MAX_WALK_DIST_PER_LEG, | ||
| QUERY_PREDICTIONS_CACHE_OPTIONS, | ||
| AUTOCOMPLETE_RADIUS, | ||
| ROUTES_CALC_CACHE_OPTIONS, | ||
| SEC_IN_MS, | ||
| SECOND_DELAY_BUFFER_IN_MINUTES, | ||
| THREE_SEC_IN_MS, | ||
| TOKEN_EXPIRATION_WINDOW_IN_MS, | ||
| TOKEN_URL, | ||
| WALK_SPEED, | ||
| }; |
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