fix(scales): fix timeScale min/max values and typings (pmndrs#743)

* Support for min/max in the TimeScale.

* Min/max take same format as input data

If the input data is formatted and the format property of the scale is set - exp. '%Y-%m-%d' - the min/max properties provided explicitly were not taken into account. Instead the actual range was used - this was crashing as the values `values.max` and `values.min` are already converted to native format.

Author: grogi

packages/scales/index.d.ts

@@ -19,11 +19,21 @@ declare module '@nivo/scales' {
         type: 'point'
     }
 
+    export interface TimeScaleFormatted {
+        type: 'time'
+        format: string
+        precision?: 'millisecond' | 'second' | 'minute' | 'hour' | 'month' | 'year' | 'day'
+        useUTC?: boolean
+        min?: 'auto' | string
+        max?: 'auto' | string
+    }
+
     export interface TimeScale {
         type: 'time'
-        format?: string
         precision?: 'millisecond' | 'second' | 'minute' | 'hour' | 'month' | 'year' | 'day'
         useUTC?: boolean
+        min?: 'auto' | Date
+        max?: 'auto' | Date
     }
 
     export interface LogScale {
@@ -33,7 +43,7 @@ declare module '@nivo/scales' {
         max?: 'auto' | number
     }
 
-    export type Scale = LinearScale | PointScale | TimeScale | LogScale
+    export type Scale = LinearScale | PointScale | TimeScale | TimeScaleFormatted | LogScale
 
     export type ScaleFunc = (value: string | number | Date) => number
 }

packages/scales/src/timeScale.js

@@ -32,14 +32,14 @@ export const timeScale = (
     if (min === 'auto') {
         minValue = values.min
     } else if (format !== 'native') {
-        minValue = normalize(values.min)
+        minValue = normalize(min)
     }
 
     let maxValue = max
     if (max === 'auto') {
         maxValue = values.max
     } else if (format !== 'native') {
-        maxValue = normalize(values.max)
+        maxValue = normalize(max)
     }
 
     const scale = useUTC ? scaleUtc() : scaleTime()