From e7eab46435e9c63fe45ac83a4a946823381f47fb Mon Sep 17 00:00:00 2001
From: Andrew Kingston <aptkingston@ssl-mail.com>
Date: Wed, 4 Nov 2020 12:43:56 +0000
Subject: [PATCH] Add support for dates and increase robustness

---
 .../userInterface/temporaryPanelStructure.js  | 13 ++--
 packages/standard-components/components.json  | 10 ++-
 .../src/Chart/ApexChart.svelte                |  6 +-
 .../src/Chart/ApexOptionsBuilder.js           |  6 ++
 .../src/Chart/BarChart.svelte                 | 77 ++++++++++++-------
 .../src/Chart/LineChart.svelte                | 70 +++++++++++------
 packages/standard-components/src/fetchData.js | 18 ++---
 7 files changed, 132 insertions(+), 68 deletions(-)

diff --git a/packages/builder/src/components/userInterface/temporaryPanelStructure.js b/packages/builder/src/components/userInterface/temporaryPanelStructure.js
index 55bd19ab64..70211fb6a5 100644
--- a/packages/builder/src/components/userInterface/temporaryPanelStructure.js
+++ b/packages/builder/src/components/userInterface/temporaryPanelStructure.js
@@ -452,6 +452,13 @@ export default {
                 dependsOn: "datasource",
                 control: MultiTableViewFieldSelect,
               },
+              {
+                label: "Format",
+                key: "yAxisUnits",
+                control: OptionSelect,
+                options: ["Default", "Thousands", "Millions"],
+                defaultValue: "Default",
+              },
               {
                 label: "Y Axis Label",
                 key: "yAxisLabel",
@@ -486,12 +493,6 @@ export default {
                 valueKey: "checked",
                 defaultValue: false,
               },
-              {
-                label: "Horizontal",
-                key: "horizontal",
-                control: Checkbox,
-                valueKey: "checked",
-              },
               {
                 label: "Data Labels",
                 key: "dataLabels",
diff --git a/packages/standard-components/components.json b/packages/standard-components/components.json
index 59012fda01..f0b23d263a 100644
--- a/packages/standard-components/components.json
+++ b/packages/standard-components/components.json
@@ -413,7 +413,6 @@
 				"default": "400"
 			},
 			"width": "number",
-			"horizontal": "bool",
 			"dataLabels": "bool",
 			"animate": {
 				"type": "bool",
@@ -422,7 +421,14 @@
 			"xAxisLabel": "string",
 			"yAxisLabel": "string",
 			"legend": "bool",
-			"stacked": "bool"
+			"stacked": "bool",
+			"yAxisUnits": {
+				"type": "options",
+				"default": "Default",
+				"options": [
+					"Default", "Thousands", "Millions"
+				]
+			}
 		}
 	},
 	"line": {
diff --git a/packages/standard-components/src/Chart/ApexChart.svelte b/packages/standard-components/src/Chart/ApexChart.svelte
index 91eed23acd..c83c7c47c2 100644
--- a/packages/standard-components/src/Chart/ApexChart.svelte
+++ b/packages/standard-components/src/Chart/ApexChart.svelte
@@ -4,7 +4,11 @@
   export let options
 </script>
 
-<div use:chart={options} />
+{#if options}
+  <div use:chart={options} />
+{:else}
+  <div>Invalid chart options</div>
+{/if}
 
 <style>
   div :global(.apexcharts-legend-series) {
diff --git a/packages/standard-components/src/Chart/ApexOptionsBuilder.js b/packages/standard-components/src/Chart/ApexOptionsBuilder.js
index 4d5067ab06..ac3bf0a6d1 100644
--- a/packages/standard-components/src/Chart/ApexOptionsBuilder.js
+++ b/packages/standard-components/src/Chart/ApexOptionsBuilder.js
@@ -1,3 +1,5 @@
+import { labelColumn, valueColumns } from "./BarChart.svelte"
+
 export class ApexOptionsBuilder {
   formatters = {
     ["Default"]: val => Math.round(val * 100) / 100,
@@ -136,4 +138,8 @@ export class ApexOptionsBuilder {
       this.formatters[units || "Default"]
     )
   }
+
+  xType(type) {
+    return this.setOption(["xaxis", "type"], type)
+  }
 }
diff --git a/packages/standard-components/src/Chart/BarChart.svelte b/packages/standard-components/src/Chart/BarChart.svelte
index 40774956fd..e8b6924db9 100644
--- a/packages/standard-components/src/Chart/BarChart.svelte
+++ b/packages/standard-components/src/Chart/BarChart.svelte
@@ -1,7 +1,7 @@
 <script>
   import { onMount } from "svelte"
-  import fetchData from "../fetchData"
-  import { isEmpty, sortBy } from "lodash/fp"
+  import fetchData, { fetchSchema } from "../fetchData"
+  import { sortBy } from "lodash/fp"
   import { ApexOptionsBuilder } from "./ApexOptionsBuilder"
   import ApexChart from "./ApexChart.svelte"
 
@@ -14,55 +14,80 @@
   export let height
   export let width
   export let color
-  export let horizontal
   export let dataLabels
   export let animate
   export let legend
   export let stacked
+  export let yAxisUnits
 
-  let data
-  $: options = getChartOptions(data)
+  let options
 
   // Fetch data on mount
   onMount(async () => {
-    if (!isEmpty(datasource)) {
-      const result = (await fetchData(datasource)).slice(0, 20)
-      data = sortBy(row => row[labelColumn])(result)
+    if (!datasource || !labelColumn || !valueColumns || !valueColumns.length) {
+      return
+    }
+
+    const result = (await fetchData(datasource)).slice(0, 20)
+    const data = sortBy(row => row[labelColumn])(result)
+    const schema = await fetchSchema(datasource.tableId)
+    if (!schema || !data || !data.length) {
+      return
+    }
+
+    // Check columns are valid
+    if (datasource.type !== "view") {
+      if (schema[labelColumn] == null) {
+        return
+      }
+      for (let i = 0; i < valueColumns.length; i++) {
+        if (schema[valueColumns[i]] == null) {
+          return
+        }
+      }
     }
-  })
 
-  function getChartOptions(rows = []) {
     // Initialise default chart
     let builder = new ApexOptionsBuilder()
-      .title(title)
       .type("bar")
+      .title(title)
       .width(width)
       .height(height)
       .xLabel(xAxisLabel)
       .yLabel(yAxisLabel)
-      .horizontal(horizontal)
       .dataLabels(dataLabels)
       .animate(animate)
       .legend(legend)
       .stacked(stacked)
+      .yUnits(yAxisUnits)
 
-    // Add data if valid datasource
-    if (rows && rows.length) {
-      if (valueColumns && valueColumns.length) {
-        const series = valueColumns.map(column => ({
-          name: column,
-          data: rows.map(row => parseFloat(row[column])),
-        }))
-        builder = builder.series(series)
-      }
-      if (!isEmpty(rows[0][labelColumn])) {
-        builder = builder.categories(rows.map(row => row[labelColumn]))
-      }
+    // Add data
+    let useDates = false
+    if (datasource.type !== "view" && schema[labelColumn]) {
+      const labelFieldType = schema[labelColumn].type
+      builder = builder.xType(labelFieldType)
+      useDates = labelFieldType === "datetime"
+    }
+    const series = valueColumns.map(column => ({
+      name: column,
+      data: data.map(row => {
+        if (!useDates) {
+          return row[column]
+        } else {
+          return [row[labelColumn], row[column]]
+        }
+      }),
+    }))
+    builder = builder.series(series)
+    if (!useDates && data[0][labelColumn] != null) {
+      builder = builder.categories(data.map(row => row[labelColumn]))
     }
 
     // Build chart options
-    return builder.getOptions()
-  }
+    options = builder.getOptions()
+  })
+
+  $: console.log(options)
 </script>
 
 <ApexChart {options} />
diff --git a/packages/standard-components/src/Chart/LineChart.svelte b/packages/standard-components/src/Chart/LineChart.svelte
index 5a1b068728..38eb7623ac 100644
--- a/packages/standard-components/src/Chart/LineChart.svelte
+++ b/packages/standard-components/src/Chart/LineChart.svelte
@@ -1,7 +1,7 @@
 <script>
   import { onMount } from "svelte"
-  import fetchData from "../fetchData"
-  import { isEmpty, sortBy } from "lodash/fp"
+  import fetchData, { fetchSchema } from "../fetchData"
+  import { sortBy } from "lodash/fp"
   import { ApexOptionsBuilder } from "./ApexOptionsBuilder"
   import ApexChart from "./ApexChart.svelte"
 
@@ -26,23 +26,37 @@
   export let stacked
   export let gradient
 
-  let data = []
-  $: options = getChartOptions(data)
+  let options
 
   // Fetch data on mount
   onMount(async () => {
-    if (!isEmpty(datasource)) {
-      const result = (await fetchData(datasource)).slice(0, 20)
-      data = sortBy(row => row[labelColumn])(result)
+    if (!datasource || !labelColumn || !valueColumns || !valueColumns.length) {
+      return
+    }
+
+    const result = (await fetchData(datasource)).slice(0, 100)
+    const data = sortBy(row => row[labelColumn])(result)
+    const schema = await fetchSchema(datasource.tableId)
+    if (!schema || !data || !data.length) {
+      return
+    }
+
+    // Check columns are valid
+    if (datasource.type !== "view") {
+      if (schema[labelColumn] == null) {
+        return
+      }
+      for (let i = 0; i < valueColumns.length; i++) {
+        if (schema[valueColumns[i]] == null) {
+          return
+        }
+      }
     }
-  })
 
-  function getChartOptions(rows = []) {
     // Initialise default chart
     let builder = new ApexOptionsBuilder()
       .title(title)
       .type(area ? "area" : "line")
-      // .color(color)
       .width(width)
       .height(height)
       .xLabel(xAxisLabel)
@@ -55,23 +69,31 @@
       .legend(legend)
       .yUnits(yAxisUnits)
 
-    // Add data if valid datasource
-    if (rows && rows.length) {
-      if (valueColumns && valueColumns.length) {
-        const series = valueColumns.map(column => ({
-          name: column,
-          data: rows.map(row => parseFloat(row[column])),
-        }))
-        builder = builder.series(series)
-      }
-      if (!isEmpty(rows[0][labelColumn])) {
-        builder = builder.categories(rows.map(row => row[labelColumn]))
-      }
+    // Add data
+    let useDates = false
+    if (datasource.type !== "view" && schema[labelColumn]) {
+      const labelFieldType = schema[labelColumn].type
+      builder = builder.xType(labelFieldType)
+      useDates = labelFieldType === "datetime"
+    }
+    const series = valueColumns.map(column => ({
+      name: column,
+      data: data.map(row => {
+        if (!useDates) {
+          return row[column]
+        } else {
+          return [row[labelColumn], row[column]]
+        }
+      }),
+    }))
+    builder = builder.series(series)
+    if (!useDates && schema[labelColumn]) {
+      builder = builder.categories(data.map(row => row[labelColumn]))
     }
 
     // Build chart options
-    return builder.getOptions()
-  }
+    options = builder.getOptions()
+  })
 </script>
 
 <ApexChart {options} />
diff --git a/packages/standard-components/src/fetchData.js b/packages/standard-components/src/fetchData.js
index 59b417a5c8..cd3e00e9e3 100644
--- a/packages/standard-components/src/fetchData.js
+++ b/packages/standard-components/src/fetchData.js
@@ -15,11 +15,11 @@ export default async function fetchData(datasource, store) {
 
     // Fetch table schema so we can check for linked rows
     if (rows && rows.length) {
-      const table = await fetchTable()
-      const keys = Object.keys(table.schema)
+      const schema = await fetchSchema(datasource.tableId)
+      const keys = Object.keys(schema)
       rows.forEach(row => {
         for (let key of keys) {
-          const type = table.schema[key].type
+          const type = schema[key].type
           if (type === "link") {
             row[`${key}_count`] = Array.isArray(row[key]) ? row[key].length : 0
           } else if (type === "attachment") {
@@ -38,12 +38,6 @@ export default async function fetchData(datasource, store) {
     return []
   }
 
-  async function fetchTable() {
-    const FETCH_TABLE_URL = `/api/tables/${datasource.tableId}`
-    const response = await api.get(FETCH_TABLE_URL)
-    return await response.json()
-  }
-
   async function fetchTableData() {
     if (!name.startsWith("all_")) {
       throw new Error("Incorrect table convention - must begin with all_")
@@ -85,3 +79,9 @@ export default async function fetchData(datasource, store) {
     return row[datasource.fieldName]
   }
 }
+
+export async function fetchSchema(id) {
+  const FETCH_TABLE_URL = `/api/tables/${id}`
+  const response = await api.get(FETCH_TABLE_URL)
+  return (await response.json()).schema
+}