Handle submitting multiple messages (cooccurrences) at once

[MrOrz]

Feature

This PR implements the items with yellow highlight. We should probably ignore Items with red highlight in the future.

Implement askingCooccurrences handler and connect to processBatch

• Design doc: https://g0v.hackmd.io/@cofacts/rd/%2Ff_Ze19PhQuqx_fzOAOkohQ
• processBatch asks if messages were sent together by the same person
• askingCooccurrences handler handles the user's response.
• Includes translation
• No tests yet

Refactors

Change askingArticleSubmissionConsent's input from Yes/No to an array of index

• ranges from 0 ~ context.msgs.length - 1
• indicates the context.msgs that does not in DB and is asking for user's consent for submission
• If the user rejects, input of askingArticleSubmissionConsent is an empty array
• updates snapshots of action inputs and related logic

Revamp logic of askingArticleSubmissionConsent

• Before this PR, the handler only processes the first message in context.msgs
• The new logic would
  1. submits multiple messages to database according to the input
  2. create UserArticleLink for newly created messages
     • For existing messages, the user article link will be created when the user selects the message in search results
  3. if multiple messages, set cooccurrences and show search results; otherwise, show creation results

[MrOrz]

Current dependencies on/for this PR:

• master
  • PR #378
  • PR #379 👈

This stack of pull requests is managed by Graphite.

[coveralls]

Pull Request Test Coverage Report for Build 7465454274

Warning: This coverage report may be inaccurate.

We've detected an issue with your CI configuration that might affect the accuracy of this pull request's coverage report. To ensure accuracy in future PRs, please see these guidelines. A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-4.1%) to 87.795%

---

Totals
Change from base Build 7465452571:	-4.1%
Covered Lines:	1027
Relevant Lines:	1129

---

💛 - Coveralls

[MrOrz]

Merge activity

• Jan 9, 1:38 PM: @MrOrz started a stack merge that includes this pull request via Graphite.
• Jan 9, 1:39 PM: Graphite rebased this pull request as part of a merge.
• Jan 9, 1:40 PM: @MrOrz merged this pull request with Graphite.