1 | "use strict";
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9 | Object.defineProperty(exports, "__esModule", { value: true });
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10 | exports.SimpleSinkBase = void 0;
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11 | const rxjs_1 = require("rxjs");
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12 | const operators_1 = require("rxjs/operators");
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13 | const exception_1 = require("../exception/exception");
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14 | const action_1 = require("../tree/action");
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15 | const Noop = function () { };
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16 | class SimpleSinkBase {
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17 | constructor() {
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18 | this.preCommitAction = Noop;
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19 | this.postCommitAction = Noop;
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20 | this.preCommit = Noop;
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21 | this.postCommit = Noop;
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22 | }
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23 | _fileAlreadyExistException(path) {
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24 | throw new exception_1.FileAlreadyExistException(path);
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25 | }
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26 | _fileDoesNotExistException(path) {
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27 | throw new exception_1.FileDoesNotExistException(path);
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28 | }
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29 | _validateOverwriteAction(action) {
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30 | return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
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31 | if (!b) {
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32 | this._fileDoesNotExistException(action.path);
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33 | }
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34 | }));
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35 | }
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36 | _validateCreateAction(action) {
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37 | return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
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38 | if (b) {
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39 | this._fileAlreadyExistException(action.path);
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40 | }
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41 | }));
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42 | }
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43 | _validateRenameAction(action) {
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44 | return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
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45 | if (!b) {
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46 | this._fileDoesNotExistException(action.path);
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47 | }
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48 | }), (0, operators_1.mergeMap)(() => this._validateFileExists(action.to)), (0, operators_1.map)((b) => {
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49 | if (b) {
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50 | this._fileAlreadyExistException(action.to);
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51 | }
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52 | }));
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53 | }
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54 | _validateDeleteAction(action) {
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55 | return this._validateFileExists(action.path).pipe((0, operators_1.map)((b) => {
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56 | if (!b) {
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57 | this._fileDoesNotExistException(action.path);
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58 | }
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59 | }));
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60 | }
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61 | validateSingleAction(action) {
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62 | switch (action.kind) {
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63 | case 'o':
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64 | return this._validateOverwriteAction(action);
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65 | case 'c':
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66 | return this._validateCreateAction(action);
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67 | case 'r':
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68 | return this._validateRenameAction(action);
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69 | case 'd':
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70 | return this._validateDeleteAction(action);
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71 | default:
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72 | throw new action_1.UnknownActionException(action);
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73 | }
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74 | }
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75 | commitSingleAction(action) {
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76 | return (0, rxjs_1.concat)(this.validateSingleAction(action), new rxjs_1.Observable((observer) => {
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77 | let committed = null;
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78 | switch (action.kind) {
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79 | case 'o':
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80 | committed = this._overwriteFile(action.path, action.content);
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81 | break;
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82 | case 'c':
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83 | committed = this._createFile(action.path, action.content);
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84 | break;
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85 | case 'r':
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86 | committed = this._renameFile(action.path, action.to);
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87 | break;
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88 | case 'd':
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89 | committed = this._deleteFile(action.path);
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90 | break;
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91 | }
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92 | if (committed) {
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93 | committed.subscribe(observer);
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94 | }
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95 | else {
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96 | observer.complete();
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97 | }
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98 | })).pipe((0, operators_1.ignoreElements)());
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99 | }
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100 | commit(tree) {
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101 | const actions = (0, rxjs_1.from)(tree.actions);
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102 | return (0, rxjs_1.concat)(this.preCommit() || (0, rxjs_1.of)(null), (0, rxjs_1.defer)(() => actions).pipe((0, operators_1.concatMap)((action) => {
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103 | const maybeAction = this.preCommitAction(action);
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104 | if ((0, rxjs_1.isObservable)(maybeAction) || isPromiseLike(maybeAction)) {
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105 | return maybeAction;
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106 | }
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107 | return (0, rxjs_1.of)(maybeAction || action);
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108 | }), (0, operators_1.concatMap)((action) => {
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109 | return (0, rxjs_1.concat)(this.commitSingleAction(action).pipe((0, operators_1.ignoreElements)()), (0, rxjs_1.of)(action));
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110 | }), (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)());
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111 | }
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112 | }
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113 | exports.SimpleSinkBase = SimpleSinkBase;
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114 | function isPromiseLike(value) {
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115 | return !!value && typeof value.then === 'function';
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116 | }
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