feat: rewrite usnws to use json

core/coord_to_tz.go

@@ -49,6 +49,54 @@ func CoordinateToTimezone(lat float64, lon float64) (string, error) {
 	return name, nil
 }
 
+// only those state that have strictly one timezone
+var stateTimeZones = map[string]string{
+	"AL": "America/Chicago",
+	"AZ": "America/Phoenix",
+	"AR": "America/Chicago",
+	"CA": "America/Los_Angeles",
+	"CO": "America/Denver",
+	"CT": "America/New_York",
+	"DE": "America/New_York",
+	"DC": "America/New_York",
+	"GA": "America/New_York",
+	"HI": "Pacific/Honolulu",
+	"IL": "America/Chicago",
+	"IA": "America/Chicago",
+	"ME": "America/New_York",
+	"MD": "America/New_York",
+	"MA": "America/New_York",
+	"MN": "America/Chicago",
+	"MS": "America/Chicago",
+	"MO": "America/Chicago",
+	"MT": "America/Denver",
+	"NV": "America/Los_Angeles",
+	"NH": "America/New_York",
+	"NJ": "America/New_York",
+	"NM": "America/Denver",
+	"NY": "America/New_York",
+	"NC": "America/New_York",
+	"OH": "America/New_York",
+	"OK": "America/Chicago",
+	"PA": "America/New_York",
+	"RI": "America/New_York",
+	"SC": "America/New_York",
+	"UT": "America/Denver",
+	"VT": "America/New_York",
+	"VA": "America/New_York",
+	"WA": "America/Los_Angeles",
+	"WV": "America/New_York",
+	"WI": "America/Chicago",
+	"WY": "America/Denver",
+}
+
+func USCoordinateToTimezone(state string, lat float64, lon float64) (string, error) {
+	if name, ok := stateTimeZones[state]; ok {
+		return name, nil
+	}
+	return CoordinateToTimezone(lat, lon)
+}
+
 func CloseTimezoneDb() {
 	if tz != nil {
 		(*tz).Close()

scripts/usnws/descriptor.go

@@ -1,6 +1,8 @@
 package usnws
 
 import (
+	"fmt"
+
 	"github.com/whitewater-guide/gorge/core"
 )
 
@@ -9,9 +11,20 @@ var Descriptor = &core.ScriptDescriptor{
 	Description: "U.S. National Oceanic and Atmospheric Administration's National Weather Service",
 	Mode:        core.AllAtOnce,
 	DefaultOptions: func() interface{} {
-		return &optionsUsnws{}
+		return &optionsUsnws{
+			pageSize:   1000, // defaults to 5000 if not mentioned at all, total around 10500
+			numWorkers: 5,
+		}
 	},
 	Factory: func(name string, options interface{}) (core.Script, error) {
-		return &scriptUsnws{name: name, kmzUrl: "https://water.weather.gov/ahps/download.php?data=kmz_obs"}, nil
+		if opts, ok := options.(*optionsUsnws); ok {
+			return &scriptUsnws{
+				name:       name,
+				url:        "https://mapservices.weather.noaa.gov/eventdriven/rest/services/water/ahps_riv_gauges/MapServer/0/query",
+				pageSize:   opts.pageSize,
+				numWorkers: opts.numWorkers,
+			}, nil
+		}
+		return nil, fmt.Errorf("failed to cast %T", optionsUsnws{})
 	},
 }