sanity-next-social-image-generator
Version:
Generate social images in Next.js with Sanity webhooks
128 lines (127 loc) • 7.27 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateImage = void 0;
var background_1 = require("../background");
var text_1 = require("../text");
var logo_1 = require("../logo");
var filters_1 = require("../filters");
var generateImage = function (_a) {
var _b = _a.width, width = _b === void 0 ? 1200 : _b, _c = _a.height, height = _c === void 0 ? 600 : _c, _d = _a.fontColor, fontColor = _d === void 0 ? 'white' : _d, _e = _a.fontSize, fontSize = _e === void 0 ? 50 : _e, _f = _a.backgroundFit, backgroundFit = _f === void 0 ? 'cover' : _f, backgroundImageUrl = _a.backgroundImageUrl, text = _a.text, _g = _a.fontName, fontName = _g === void 0 ? 'Helvetica' : _g, _h = _a.blur, blur = _h === void 0 ? 0 : _h, _j = _a.darken, darken = _j === void 0 ? 0 : _j, _k = _a.lighten, lighten = _k === void 0 ? 0 : _k, _l = _a.logo, logo = _l === void 0 ? '' : _l, _m = _a.logoPosition, logoPosition = _m === void 0 ? 'bottomRight' : _m, _o = _a.logoWidth, logoWidth = _o === void 0 ? 200 : _o, _p = _a.logoHeight, logoHeight = _p === void 0 ? null : _p, _q = _a.logoFit, logoFit = _q === void 0 ? 'cover' : _q, _r = _a.filterColor, filterColor = _r === void 0 ? '' : _r;
return __awaiter(void 0, void 0, void 0, function () {
var imageFile, image, composites, _s, _t, _u, _v, buffer, sharpLogo;
var _w, _x;
return __generator(this, function (_y) {
switch (_y.label) {
case 0: return [4 /*yield*/, (0, background_1.loadImage)(backgroundImageUrl)];
case 1:
imageFile = _y.sent();
return [4 /*yield*/, (0, background_1.resize)(imageFile, width, height, backgroundFit)];
case 2:
image = _y.sent();
composites = [];
if (!blur) return [3 /*break*/, 4];
return [4 /*yield*/, (0, filters_1.blurFilter)(blur, image)];
case 3:
_y.sent();
_y.label = 4;
case 4:
if (!darken) return [3 /*break*/, 6];
_t = (_s = composites).push;
_w = {};
return [4 /*yield*/, (0, filters_1.darkenFilter)(darken, width, height)];
case 5:
_t.apply(_s, [(_w.input = _y.sent(),
_w.left = 0,
_w.top = 0,
_w)]);
_y.label = 6;
case 6:
if (!filterColor) return [3 /*break*/, 8];
_v = (_u = composites).push;
_x = {};
return [4 /*yield*/, (0, filters_1.colorize)(filterColor, width, height)];
case 7:
_v.apply(_u, [(_x.input = _y.sent(),
_x.left = 0,
_x.top = 0,
_x)]);
_y.label = 8;
case 8:
if (!lighten) return [3 /*break*/, 10];
return [4 /*yield*/, (0, filters_1.brighten)(lighten, image)];
case 9:
_y.sent();
_y.label = 10;
case 10:
// Add text
if (text) {
buffer = (0, text_1.buildTextSVGBuffer)({
width: width,
height: height,
text: text,
color: fontColor,
fontSize: fontSize,
fontName: fontName,
});
composites.push({ input: buffer, left: 0, top: 0 });
}
if (!logo) return [3 /*break*/, 12];
return [4 /*yield*/, (0, logo_1.generateLogoPositioning)({
logo: logo,
logoWidth: logoWidth,
logoHeight: logoHeight,
logoFit: logoFit,
width: width,
height: height,
logoPosition: logoPosition,
})];
case 11:
sharpLogo = _y.sent();
composites.push(sharpLogo);
_y.label = 12;
case 12: return [4 /*yield*/, image.composite(composites)];
case 13:
_y.sent();
return [4 /*yield*/, image.toBuffer()];
case 14: return [2 /*return*/, _y.sent()];
}
});
});
};
exports.generateImage = generateImage;