From 2d6f6dc7ae936ca6c6bbc0b88821072fe6ea062a Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Mon, 13 May 2019 10:43:29 +0900
Subject: [PATCH] chart

---
 src/modules/chart/index.ts        | 45 ++++++++++++++++++++++---------
 src/modules/chart/render-chart.ts | 10 +++++++
 2 files changed, 43 insertions(+), 12 deletions(-)

diff --git a/src/modules/chart/index.ts b/src/modules/chart/index.ts
index 2d0869a..8fe75c9 100644
--- a/src/modules/chart/index.ts
+++ b/src/modules/chart/index.ts
@@ -47,7 +47,7 @@ export default class extends Module {
 			const data = await this.ai.api('charts/user/notes', {
 				span: 'day',
 				limit: 30,
-				userId: params.userId
+				userId: params.user.id
 			});
 
 			chart = {
@@ -59,6 +59,21 @@ export default class extends Module {
 					data: data.diffs.renote
 				}]
 			};
+		} else if (type === 'followers') {
+			const data = await this.ai.api('charts/user/following', {
+				span: 'day',
+				limit: 30,
+				userId: params.user.id
+			});
+
+			chart = {
+				title: `@${params.user.username}さんのフォロワー数`,
+				datasets: [{
+					data: data.local.followers.total
+				}, {
+					data: data.remote.followers.total
+				}]
+			};
 		} else if (type === 'notes') {
 			const data = await this.ai.api('charts/notes', {
 				span: 'day',
@@ -90,18 +105,24 @@ export default class extends Module {
 
 	@autobind
 	private async mentionHook(msg: Message) {
-		if (msg.includes(['チャート'])) {
-			this.log('Chart requested');
-			const file = await this.genChart('userNotes', {
-				userId: msg.userId
-			});
-			this.log('Replying...');
-			msg.replyWithFile(serifs.chart.foryou, file);
-			return {
-				reaction: 'like'
-			};
-		} else {
+		if (!msg.includes(['チャート'])) {
 			return false;
+		} else {
+			this.log('Chart requested');
 		}
+
+		let type = 'userNotes';
+		if (msg.includes(['フォロワー'])) type = 'followers';
+
+		const file = await this.genChart(type, {
+			user: msg.user
+		});
+
+		this.log('Replying...');
+		msg.replyWithFile(serifs.chart.foryou, file);
+
+		return {
+			reaction: 'like'
+		};
 	}
 }
diff --git a/src/modules/chart/render-chart.ts b/src/modules/chart/render-chart.ts
index c9d1b56..c4ff1f6 100644
--- a/src/modules/chart/render-chart.ts
+++ b/src/modules/chart/render-chart.ts
@@ -46,6 +46,14 @@ export function renderChart(chart: Chart) {
 	ctx.beginPath();
 	ctx.fillRect(0, 0, width, height);
 
+	// Draw title
+	if (chart.title) {
+		ctx.font = '35px CustomFont';
+		const t = ctx.measureText(chart.title);
+		ctx.fillStyle = colors.text;
+		ctx.fillText(chart.title, (width / 2) - (t.width / 2), 128);
+	}
+
 	const xAxisCount = chart.datasets[0].data.length;
 	const serieses = chart.datasets.length;
 
@@ -153,6 +161,8 @@ export function renderChart(chart: Chart) {
 // https://github.com/apexcharts/apexcharts.js/blob/master/src/modules/Scales.js
 // This routine creates the Y axis values for a graph.
 function niceScale(lowerBound: number, upperBound: number, ticks: number): number[] {
+	if (lowerBound === 0 && upperBound === 0) return [0];
+
 	// Calculate Min amd Max graphical labels and graph
 	// increments.  The number of ticks defaults to
 	// 10 which is the SUGGESTED value.  Any tick value