From 7ec9357ab9f0db994b4b5513f85a3007cf825f57 Mon Sep 17 00:00:00 2001
From: Vladyslav Hrytsenko <vladgritsenko@gmail.com>
Date: Tue, 25 Jun 2024 10:22:27 +0300
Subject: [PATCH] added image action

---
 packages/nexrender-action-image/index.js     | 36 ++++++++
 packages/nexrender-action-image/package.json | 13 +++
 packages/nexrender-action-image/test.js      | 91 ++++++++++++++++++++
 packages/nexrender-core/package.json         |  1 +
 packages/nexrender-core/src/index.js         |  1 +
 5 files changed, 142 insertions(+)
 create mode 100644 packages/nexrender-action-image/index.js
 create mode 100644 packages/nexrender-action-image/package.json
 create mode 100644 packages/nexrender-action-image/test.js

diff --git a/packages/nexrender-action-image/index.js b/packages/nexrender-action-image/index.js
new file mode 100644
index 00000000..3a814df1
--- /dev/null
+++ b/packages/nexrender-action-image/index.js
@@ -0,0 +1,36 @@
+const jimp = require('jimp');
+
+module.exports = async (job, settings, { create, input, output, filters }) => {
+    if (!filters || !filters.length) {
+        throw new Error('No filters provided');
+    }
+
+    let image;
+
+    if (!input && !create) {
+        throw new Error('No input or create provided');
+    }
+
+    if (!output) {
+        throw new Error('No output provided');
+    }
+
+    if (!input && create) {
+        const [width, height] = create;
+        image = new jimp(width, height);
+    } else {
+        image = await jimp.read(input);
+    }
+
+    for (const filter of filters) {
+        const { name, args } = filter;
+
+        if (!image[name]) {
+            throw new Error(`Filter "${name}" does not exist`);
+        }
+
+        image[name](...args);
+    }
+
+    await image.writeAsync(output);
+}
diff --git a/packages/nexrender-action-image/package.json b/packages/nexrender-action-image/package.json
new file mode 100644
index 00000000..51a6f7dc
--- /dev/null
+++ b/packages/nexrender-action-image/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "@nexrender/action-image",
+  "homepage": "https://www.nexrender.com",
+  "author": "inlife",
+  "version": "1.49.4",
+  "main": "index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "jimp": "^0.22.12"
+  }
+}
diff --git a/packages/nexrender-action-image/test.js b/packages/nexrender-action-image/test.js
new file mode 100644
index 00000000..69c21b35
--- /dev/null
+++ b/packages/nexrender-action-image/test.js
@@ -0,0 +1,91 @@
+const action = require("./index.js");
+const assert = require("assert");
+const fs = require("fs");
+const path = require("path");
+
+describe("action/image", () => {
+    it("should throw an error if no filters are provided", async () => {
+        const job = {};
+        const settings = {};
+        const params = {
+            input: 'foobar',
+            output: 'foobar',
+        };
+
+        try {
+            await action(job, settings, params);
+        } catch (err) {
+            assert.equal(err.message, "No filters provided");
+        }
+    });
+
+    it("should throw an error if no input or create is provided", async () => {
+        const job = {};
+        const settings = {};
+        const { create, input, output, filters } = {filters: [{}]};
+
+        try {
+            await action(job, settings, { create, input, output, filters });
+        } catch (err) {
+            assert.equal(err.message, "No input or create provided");
+        }
+    });
+
+    it("should throw an error if no output is provided", async () => {
+        const job = {};
+        const settings = {};
+        const { create, input, output, filters } = {input: 'foobar', filters: [{}]};
+
+        try {
+            await action(job, settings, { create, input, output, filters });
+        } catch (err) {
+            assert.equal(err.message, "No output provided");
+        }
+    });
+
+    const imagePath = path.join(__dirname, "test.png");
+
+    it("should create a new image with the provided dimensions", async () => {
+        const job = {};
+        const settings = {};
+        const create = [21, 21];
+        const output = imagePath;
+        const filters = [
+            { name: "background", args: [0xFFFFFF] },
+            { name: "setPixelColor", args: [0xFF0000FF, 10, 10] },
+            { name: "setPixelColor", args: [0xFF0000FF, 9, 10] },
+            { name: "setPixelColor", args: [0xFF0000FF, 11, 10] },
+            { name: "setPixelColor", args: [0xFF0000FF, 10, 9] },
+            { name: "setPixelColor", args: [0xFF0000FF, 10, 10] },
+            { name: "setPixelColor", args: [0xFF0000FF, 10, 11] },
+        ];
+
+        await action(job, settings, { create, output, filters });
+
+        // assert that the image was created
+        assert.ok(fs.existsSync(output));
+    });
+
+    it("should apply filters to the input image", async () => {
+        const job = {};
+        const settings = {};
+
+        const input = imagePath;
+        const output = imagePath + ".jpg";
+
+        const filters = [
+            { name: "greyscale", args: [] },
+            { name: "invert", args: [] },
+        ];
+
+        await action(job, settings, { input, output, filters });
+
+        // assert that the image was created
+        assert.ok(fs.existsSync(output));
+    });
+
+    after(() => {
+        fs.unlinkSync(imagePath);
+        fs.unlinkSync(imagePath + ".jpg");
+    });
+})
diff --git a/packages/nexrender-core/package.json b/packages/nexrender-core/package.json
index d7d31364..c9a476f9 100644
--- a/packages/nexrender-core/package.json
+++ b/packages/nexrender-core/package.json
@@ -28,6 +28,7 @@
     "@nexrender/action-decompress": "^1.48.2",
     "@nexrender/action-encode": "^1.1.4",
     "@nexrender/action-upload": "^1.0.0",
+    "@nexrender/action-image": "^1.49.4",
     "@nexrender/provider-ftp": "^1.17.2",
     "@nexrender/provider-gs": "^1.21.3",
     "@nexrender/provider-nx": "^1.47.0",
diff --git a/packages/nexrender-core/src/index.js b/packages/nexrender-core/src/index.js
index c44766ed..addbe130 100644
--- a/packages/nexrender-core/src/index.js
+++ b/packages/nexrender-core/src/index.js
@@ -31,6 +31,7 @@ if (process.env.NEXRENDER_REQUIRE_PLUGINS) {
     require('@nexrender/action-encode');
     require('@nexrender/action-upload');
     require('@nexrender/action-decompress');
+    require('@nexrender/action-image');
 
     require('@nexrender/provider-s3');
     require('@nexrender/provider-ftp');