From 76328dc81e3d31f4eb73db6c6c82054408db4fca Mon Sep 17 00:00:00 2001
From: cmack <conoramck@gmail.com>
Date: Mon, 6 Jul 2020 16:58:33 +0100
Subject: [PATCH] WIP : Chart component for rendering Britecharts

---
 .../src/components/userInterface/Chart.svelte | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 packages/builder/src/components/userInterface/Chart.svelte

diff --git a/packages/builder/src/components/userInterface/Chart.svelte b/packages/builder/src/components/userInterface/Chart.svelte
new file mode 100644
index 0000000000..45db995efe
--- /dev/null
+++ b/packages/builder/src/components/userInterface/Chart.svelte
@@ -0,0 +1,65 @@
+<script>
+  import { onMount } from "svelte";
+
+  //expose chart types for use or reference outside compnent
+  export const chartTypes = britecharts ? Object.keys(britecharts) : null;
+
+  //TODO: How do I access this from outside the component?
+  //expose chart color schemas for use or reference outside compnent
+  export const colorSchemas = britecharts
+    ? britecharts.colors.colorSchemas
+    : null;
+
+  export const colorGradients = britecharts
+    ? britecharts.colors.colorGradients
+    : null;
+
+  export let type = "bar";
+  export let data = [];
+
+  export let colors = britecharts
+    ? britecharts.colors.colorSchemas.britecharts
+    : null;
+
+  let chartElement = null;
+  let chartContainer = null;
+
+  let chart = chartTypes.includes(type) ? britecharts[type]() : null;
+
+  onMount(() => {
+    //TODO: Error handling if can't find britecharts or d3Selection
+    if (chart) {
+      chartContainer = d3.select(chartElement);
+      bindChartColors();
+      bindChartUIProps();
+      chartContainer.datum(data).call(chart);
+    }
+  });
+
+  function bindChartColors() {
+    /* 
+    TODO: some charts support gradients, others support colours.Find out and cater for this here
+        Can a chart support support both color and gradient schemas?
+        Can a chart support no colors or gradients
+        Can a user define there own color schema? 
+    */
+    if (chart.colorSchema) {
+      chart.colorSchema(colors);
+    }
+  }
+
+  //TODO: Ability to match height and width of container (similar to how this is done in docs). Maybe default this if no width or height
+  function bindChartUIProps() {
+    const props = Object.entries($$props);
+
+    for (let [prop, value] of props) {
+      if (validChartProps.includes(prop)) {
+        chart[prop](value);
+      }
+    }
+  }
+
+  $: validChartProps = chart ? Object.getOwnPropertyNames(chart) : null;
+</script>
+
+<div bind:this={chartElement} class="chart-container" />