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feat: add bottom up workflow traversal

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This commit is contained in:
RohitR311
2024-12-06 22:10:28 +05:30
parent bffe838988
commit 0ee50e1c26
1 changed files with 82 additions and 25 deletions
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107
maxun-core/src/interpret.ts
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@@ -121,27 +121,55 @@ export default class Interpreter extends EventEmitter {
}
}
private getPreviousSelectors(workflow: Workflow, actionId: number): string[] {
const selectors: string[] = [];
let index = actionId - 1;
// private getPreviousSelectors(workflow: Workflow, actionId: number): string[] {
// const selectors: string[] = [];
// let index = actionId - 1;
while (index >= 0) {
const previousSelectors = workflow[index]?.where?.selectors;
console.log("Previous Selectors:", previousSelectors);
if (previousSelectors && previousSelectors.length > 0) {
previousSelectors.forEach((selector) => {
// while (index >= 0) {
// const previousSelectors = workflow[index]?.where?.selectors;
// console.log("Previous Selectors:", previousSelectors);
// if (previousSelectors && previousSelectors.length > 0) {
// previousSelectors.forEach((selector) => {
// if (!selectors.includes(selector)) {
// selectors.push(selector); // Avoid duplicates
// }
// });
// break; // Exit the loop once valid selectors are found
// }
// index--; // Move further back in the workflow
// }
// return selectors;
// }
private getSelectors(workflow: Workflow, actionId: number): string[] {
const selectors: string[] = [];
// Validate actionId
if (actionId <= 0) {
console.log("No previous selectors to collect.");
return selectors; // Empty array as there are no previous steps
}
// Iterate from the start up to (but not including) actionId
for (let index = 0; index < actionId; index++) {
const currentSelectors = workflow[index]?.where?.selectors;
console.log(`Selectors at step ${index}:`, currentSelectors);
if (currentSelectors && currentSelectors.length > 0) {
currentSelectors.forEach((selector) => {
if (!selectors.includes(selector)) {
selectors.push(selector); // Avoid duplicates
}
});
break; // Exit the loop once valid selectors are found
}
index--; // Move further back in the workflow
}
console.log("Collected Selectors:", selectors);
return selectors;
}
/**
* Returns the context object from given Page and the current workflow.\
* \
@@ -167,8 +195,8 @@ export default class Interpreter extends EventEmitter {
const actionable = async (selector: string): Promise<boolean> => {
try {
const proms = [
page.isEnabled(selector, { timeout: 2000 }),
page.isVisible(selector, { timeout: 2000 }),
page.isEnabled(selector, { timeout: 500 }),
page.isVisible(selector, { timeout: 500 }),
];
return await Promise.all(proms).then((bools) => bools.every((x) => x));
@@ -198,7 +226,7 @@ export default class Interpreter extends EventEmitter {
...p,
[cookie.name]: cookie.value,
}), {}),
selectors: presentSelectors,
selectors: selectors,
};
}
@@ -570,11 +598,29 @@ export default class Interpreter extends EventEmitter {
return allResults;
}
private getMatchingActionId(workflow: Workflow, pageState: PageState, usedActions: string[]) {
for (let actionId = workflow.length - 1; actionId >= 0; actionId--) {
const step = workflow[actionId];
const isApplicable = this.applicable(step.where, pageState, usedActions);
console.log("-------------------------------------------------------------");
console.log(`Where:`, step.where);
console.log(`Page state:`, pageState);
console.log(`Match result: ${isApplicable}`);
console.log("-------------------------------------------------------------");
if (isApplicable) {
return actionId;
}
}
}
private async runLoop(p: Page, workflow: Workflow) {
const workflowCopy: Workflow = JSON.parse(JSON.stringify(workflow));
// apply ad-blocker to the current page
await this.applyAdBlocker(p);
const usedActions: string[] = [];
const selectors: string[] = [];
let selectors: string[] = [];
let lastAction = null;
let repeatCount = 0;
@@ -584,7 +630,7 @@ export default class Interpreter extends EventEmitter {
* e.g. via `enqueueLinks`.
*/
p.on('popup', (popup) => {
this.concurrency.addJob(() => this.runLoop(popup, workflow));
this.concurrency.addJob(() => this.runLoop(popup, workflowCopy));
});
/* eslint no-constant-condition: ["warn", { "checkLoops": false }] */
@@ -604,7 +650,8 @@ export default class Interpreter extends EventEmitter {
let pageState = {};
try {
pageState = await this.getState(p, workflow, selectors);
pageState = await this.getState(p, workflowCopy, selectors);
selectors = [];
} catch (e: any) {
this.log('The browser has been closed.');
return;
@@ -614,16 +661,22 @@ export default class Interpreter extends EventEmitter {
this.log(`Current state is: \n${JSON.stringify(pageState, null, 2)}`, Level.WARN);
}
const actionId = workflow.findIndex((step) => {
const isApplicable = this.applicable(step.where, pageState, usedActions);
console.log(`Where:`, step.where);
console.log(`Page state:`, pageState);
console.log(`Match result: ${isApplicable}`);
return isApplicable;
});
// const actionId = workflow.findIndex((step) => {
// const isApplicable = this.applicable(step.where, pageState, usedActions);
// console.log("-------------------------------------------------------------");
// console.log(`Where:`, step.where);
// console.log(`Page state:`, pageState);
// console.log(`Match result: ${isApplicable}`);
// console.log("-------------------------------------------------------------");
// return isApplicable;
// });
const action = workflow[actionId];
const actionId = this.getMatchingActionId(workflowCopy, pageState, usedActions);
const action = workflowCopy[actionId];
console.log("MATCHED ACTION:", action);
console.log("MATCHED ACTION ID:", actionId);
this.log(`Matched ${JSON.stringify(action?.where)}`, Level.LOG);
if (action) { // action is matched
@@ -643,8 +696,12 @@ export default class Interpreter extends EventEmitter {
console.log("Carrying out:", action.what);
await this.carryOutSteps(p, action.what);
usedActions.push(action.id ?? 'undefined');
workflowCopy.splice(actionId, 1);
console.log(`Action with ID ${action.id} removed from the workflow copy.`);
const newSelectors = this.getPreviousSelectors(workflow, actionId);
// const newSelectors = this.getPreviousSelectors(workflow, actionId);
const newSelectors = this.getSelectors(workflowCopy, actionId);
newSelectors.forEach(selector => {
if (!selectors.includes(selector)) {
selectors.push(selector);