// Copyright 2017 AJ Jordan, AGPLv3+

'use strict';

const parse = require('./parse'),

validate = require('./validate'),

labeler = require('./labeler'),

helptext = require('./helptext'),

_ = require('lodash');

module.exports = function(robot, alexa) {

return context => {

robot.log('Issue #' + context.payload.issue.number + ' created; responding.');

// Check if the "issue" is really a PR

// I can't really tell if GitHub will ever send us something like this, honestly... but bettter safe than sorry.

if (_.has(context.payload.issue, 'pull_request')) {

robot.log('Issue is a Pull Request; aborting.');

return;

}

const data = parse(context.payload.issue.body);

// Check if the data is problematic

if (data instanceof Error) {

// Dumb `switch` statement cases aren't technically blocks so saying `const params` in both of them causes redeclaration errors

let params;

switch (data.message) {

case 'invalid type':

params = context.issue({body: 'Hey there, I didn\'t understand the type of issue you specified. Please edit it and try again.' + helptext});

return context.github.issues.createComment(params);

case 'multiple types':

params = context.issue({body: 'Hello! You seem to have specified more than one type. Can you edit your issue and delete all but one of the types in your issue?' + helptext});

return context.github.issues.createComment(params);

case 'no type':

params = context.issue({body: 'Hey, I couldn\'t find the type of issue in your description. Can you edit your issue to add this information (perhaps referring to the [issue template](https://github.com/EFForg/https-everywhere/blob/master/.github/ISSUE_TEMPLATE.md)?)\n\nFor this to work I need `Type: <type>` on its own line in the issue body. For example, `Type: new ruleset`. There\'s a list of types I understand in the issue template.' + helptext});

return context.github.issues.createComment(params);

case 'null description':

params = context.issue({body: 'Hi! I can\'t find any text in your description - please edit it to use the [issue template](https://github.com/EFForg/https-everywhere/blob/master/.github/ISSUE_TEMPLATE.md).' + helptext});

return context.github.issues.createComment(params);

default:

throw data;

}

}

const problems = validate(data);

if (problems.length === 0) {

// User submission is OK

return labeler(context, data, alexa);

} else {

// Submit a comment telling them what the issues were

let comment = 'Thanks for your contribution to HTTPS Everywhere! ';

comment += 'Unfortunately, I wasn\'t able to understand your submission. ';

comment += 'Here are the problems I ran into:\n\n';

problems.forEach(problem => comment += ` * ${problem}\n`);

comment += '\nIf you edit your issue, I\'ll try again and report back if I have problems again.';

comment += helptext

const params = context.issue({body: comment});

return context.github.issues.createComment(params);

}

};

};