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"use strict";
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.SimpleSinkBase = void 0;
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const exception_1 = require("../exception/exception");
const action_1 = require("../tree/action");
const Noop = function () { };
class SimpleSinkBase {
constructor() {
this.preCommitAction = Noop;
this.postCommitAction = Noop;
this.preCommit = Noop;
this.postCommit = Noop;
}
_fileAlreadyExistException(path) {
throw new exception_1.FileAlreadyExistException(path);
}
_fileDoesNotExistException(path) {
throw new exception_1.FileDoesNotExistException(path);
}
_validateOverwriteAction(action) {
return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
if (!b) {
this._fileDoesNotExistException(action.path);
}
}));
}
_validateCreateAction(action) {
return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
if (b) {
this._fileAlreadyExistException(action.path);
}
}));
}
_validateRenameAction(action) {
return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
if (!b) {
this._fileDoesNotExistException(action.path);
}
}), (0, operators_1.mergeMap)(() => this._validateFileExists(action.to)), (0, operators_1.map)((b) => {
if (b) {
this._fileAlreadyExistException(action.to);
}
}));
}
_validateDeleteAction(action) {
return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
if (!b) {
this._fileDoesNotExistException(action.path);
}
}));
}
validateSingleAction(action) {
switch (action.kind) {
case 'o':
return this._validateOverwriteAction(action);
case 'c':
return this._validateCreateAction(action);
case 'r':
return this._validateRenameAction(action);
case 'd':
return this._validateDeleteAction(action);
default:
throw new action_1.UnknownActionException(action);
}
}
commitSingleAction(action) {
return (0, rxjs_1.concat)(this.validateSingleAction(action), new rxjs_1.Observable((observer) => {
let committed = null;
switch (action.kind) {
case 'o':
committed = this._overwriteFile(action.path, action.content);
break;
case 'c':
committed = this._createFile(action.path, action.content);
break;
case 'r':
committed = this._renameFile(action.path, action.to);
break;
case 'd':
committed = this._deleteFile(action.path);
break;
}
if (committed) {
committed.subscribe(observer);
}
else {
observer.complete();
}
})).pipe((0, operators_1.ignoreElements)());
}
commit(tree) {
const actions = (0, rxjs_1.from)(tree.actions);
return (0, rxjs_1.concat)(this.preCommit() || (0, rxjs_1.of)(null), (0, rxjs_1.defer)(() => actions).pipe((0, operators_1.concatMap)((action) => {
const maybeAction = this.preCommitAction(action);
if ((0, rxjs_1.isObservable)(maybeAction) || isPromiseLike(maybeAction)) {
return maybeAction;
}
return (0, rxjs_1.of)(maybeAction || action);
}), (0, operators_1.concatMap)((action) => {
return (0, rxjs_1.concat)(this.commitSingleAction(action).pipe((0, operators_1.ignoreElements)()), (0, rxjs_1.of)(action));
}), (0, operators_1.concatMap)((action) => this.postCommitAction(action) || (0, rxjs_1.of)(null))), (0, rxjs_1.defer)(() => this._done()), (0, rxjs_1.defer)(() => this.postCommit() || (0, rxjs_1.of)(null))).pipe((0, operators_1.ignoreElements)());
}
}
exports.SimpleSinkBase = SimpleSinkBase;
function isPromiseLike(value) {
return !!value && typeof value.then === 'function';
}