@mtucourses/thumbor/dist/index.js

👍 a URL builder for Thumbor

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Thumbor = exports.HORIZONTAL_POSITION = exports.VERTICAL_POSITION = exports.FIT_IN_TYPE = void 0;
const crypto_1 = __importDefault(require("crypto"));
const utils_1 = require("./utils");
var FIT_IN_TYPE;
(function (FIT_IN_TYPE) {
    FIT_IN_TYPE["DEFAULT"] = "DEFAULT";
    FIT_IN_TYPE["FULL"] = "FULL";
    FIT_IN_TYPE["ADAPTIVE"] = "ADAPTIVE";
})(FIT_IN_TYPE = exports.FIT_IN_TYPE || (exports.FIT_IN_TYPE = {}));
var VERTICAL_POSITION;
(function (VERTICAL_POSITION) {
    VERTICAL_POSITION["TOP"] = "TOP";
    VERTICAL_POSITION["MIDDLE"] = "MIDDLE";
    VERTICAL_POSITION["BOTTOM"] = "BOTTOM";
})(VERTICAL_POSITION = exports.VERTICAL_POSITION || (exports.VERTICAL_POSITION = {}));
var HORIZONTAL_POSITION;
(function (HORIZONTAL_POSITION) {
    HORIZONTAL_POSITION["LEFT"] = "LEFT";
    HORIZONTAL_POSITION["CENTER"] = "CENTER";
    HORIZONTAL_POSITION["RIGHT"] = "RIGHT";
})(HORIZONTAL_POSITION = exports.HORIZONTAL_POSITION || (exports.HORIZONTAL_POSITION = {}));
const defaultParametersFactory = () => ({
    imagePath: '',
    width: 0,
    height: 0,
    smart: false,
    trimFlag: false,
    withFlipHorizontally: false,
    withFlipVertically: false,
    filtersCalls: []
});
class Thumbor {
    constructor({ url, key }) {
        this.parameters = defaultParametersFactory();
        this.url = url;
        this.key = key;
    }
    setPath(path) {
        this.parameters.imagePath = (path.startsWith('/')) ? path.slice(1, path.length) : path;
        return this;
    }
    resize(width, height) {
        this.parameters.width = width;
        this.parameters.height = height;
        this.parameters.fitInType = undefined;
        return this;
    }
    smartCrop(smartCrop) {
        this.parameters.smart = smartCrop;
        return this;
    }
    trim() {
        this.parameters.trimFlag = true;
        return this;
    }
    fitIn(width, height, type = FIT_IN_TYPE.DEFAULT) {
        this.parameters.width = width;
        this.parameters.height = height;
        this.parameters.fitInType = type;
        return this;
    }
    flipHorizontally() {
        this.parameters.withFlipHorizontally = true;
        return this;
    }
    flipVertically() {
        this.parameters.withFlipVertically = true;
        return this;
    }
    halign(halign) {
        this.parameters.halignValue = halign;
        return this;
    }
    valign(valign) {
        this.parameters.valignValue = valign;
        return this;
    }
    filter(filterCall) {
        this.parameters.filtersCalls.push(filterCall);
        return this;
    }
    crop(crop) {
        this.parameters.cropValues = crop;
        return this;
    }
    buildURL() {
        const operation = this.getOperationPath();
        const dataToEncrypt = operation + '/' + this.parameters.imagePath;
        if (this.key) {
            const digest = crypto_1.default
                .createHmac('sha1', this.key)
                .update(dataToEncrypt)
                .digest('base64')
                .replace(/\+/g, '-').replace(/\//g, '_');
            this.parameters = defaultParametersFactory();
            return this.url + '/' + digest + '/' + dataToEncrypt;
        }
        this.parameters = defaultParametersFactory();
        return this.url + '/unsafe/' + dataToEncrypt;
    }
    getURLParts() {
        const parts = [];
        if (this.parameters.trimFlag) {
            parts.push('trim');
        }
        if (this.parameters.cropValues) {
            parts.push(this.parameters.cropValues.left.toString() +
                'x' + this.parameters.cropValues.top.toString() +
                ':' + this.parameters.cropValues.right.toString() +
                'x' + this.parameters.cropValues.bottom.toString());
        }
        switch (this.parameters.fitInType) {
            case FIT_IN_TYPE.DEFAULT:
                parts.push('fit-in');
                break;
            case FIT_IN_TYPE.FULL:
                parts.push('full-fit-in');
                break;
            case FIT_IN_TYPE.ADAPTIVE:
                parts.push('adaptative-fit-in');
                break;
            default:
                break;
        }
        if (utils_1.isDefined(this.parameters.width) ||
            utils_1.isDefined(this.parameters.height) ||
            this.parameters.withFlipHorizontally ||
            this.parameters.withFlipVertically) {
            let sizeString = '';
            if (this.parameters.withFlipHorizontally) {
                sizeString += '-';
            }
            sizeString += this.parameters.width;
            sizeString += 'x';
            if (this.parameters.withFlipVertically) {
                sizeString += '-';
            }
            sizeString += this.parameters.height;
            parts.push(sizeString);
        }
        if (this.parameters.halignValue) {
            parts.push(this.parameters.halignValue);
        }
        if (this.parameters.valignValue) {
            parts.push(this.parameters.valignValue);
        }
        if (this.parameters.smart) {
            parts.push('smart');
        }
        if (this.parameters.filtersCalls.length > 0) {
            parts.push('filters:' + this.parameters.filtersCalls.join(':'));
        }
        return parts;
    }
    getOperationPath() {
        const parts = this.getURLParts();
        if (parts.length === 0) {
            return '';
        }
        return parts.join('/');
    }
}
exports.Thumbor = Thumbor;
//# sourceMappingURL=index.js.map