jsstats/server/joystream/lib/getters.ts

import { formatProposalMessage } from './announcements'
import fetch from 'node-fetch'

//types

import { Api, ProposalArray, ProposalDetail } from '../../types'
import {
  ChannelId,
  PostId,
  ProposalDetailsOf,
  ThreadId,
} from '@joystream/types/augment'
import { Category, CategoryId } from '@joystream/types/forum'
import { MemberId, Membership } from '@joystream/types/members'
import { Proposal } from '@joystream/types/proposals'
import { AccountId } from '@polkadot/types/interfaces'

// channel

export const currentChannelId = async (api: Api): Promise<number> => {
  const id: ChannelId = await api.query.contentWorkingGroup.nextChannelId()
  return Number(id) - 1
}

// members

export const membership = async (
  api: Api,
  id: MemberId | number
): Promise<Membership> => {
  return await api.query.members.membershipById(id)
}

export const memberHandle = async (api: Api, id: MemberId): Promise<string> => {
  const member: Membership = await membership(api, id)
  return member.handle.toJSON()
}

export const memberIdByAccount = async (
  api: Api,
  account: AccountId | string
): Promise<MemberId | number> => {
  const ids = await api.query.members.memberIdsByRootAccountId(account)
  return ids.length ? ids[0] : 0
}

export const memberHandleByAccount = async (
  api: Api,
  account: AccountId | string
): Promise<string> => {
  const id: MemberId = await api.query.members.memberIdsByRootAccountId(account)
  const handle: string = await memberHandle(api, id)
  return handle === 'joystream_storage_member' ? 'joystream' : handle
}

// forum

export const categoryById = async (api: Api, id: number): Promise<Category> => {
  const category: Category = await api.query.forum.categoryById(id)
  return category
}

export const currentPostId = async (api: Api): Promise<number> => {
  const postId: PostId = await api.query.forum.nextPostId()
  return Number(postId) - 1
}

export const currentThreadId = async (api: Api): Promise<number> => {
  const threadId: ThreadId = await api.query.forum.nextThreadId()
  return Number(threadId) - 1
}

export const currentCategoryId = async (api: Api): Promise<number> => {
  const categoryId: CategoryId = await api.query.forum.nextCategoryId()
  return Number(categoryId) - 1
}

// proposals

export const proposalCount = async (api: Api): Promise<number> => {
  const proposalCount: any = await api.query.proposalsEngine.proposalCount()
  return proposalCount.toJSON() || 0
}

export const activeProposalCount = async (api: Api): Promise<number> => {
  const proposalCount: number = await api.query.proposalsEngine.activeProposalCount()
  return proposalCount || 0
}

export const pendingProposals = async (api: Api): Promise<ProposalArray> => {
  const pending: ProposalArray = await api.query.proposalsEngine.pendingExecutionProposalIds(
    await activeProposalCount(api)
  )
  //const pending: ProposalArray = pendingProposals.toJSON();
  if (pending.length) console.debug('pending proposals', pending)
  return pending
}

export const activeProposals = async (api: Api): Promise<ProposalArray> => {
  const active: ProposalArray = await api.query.proposalsEngine.activeProposalIds(
    await activeProposalCount(api)
  )
  //const active: ProposalArray = result.toJSON();
  if (active.length) console.debug('active proposals', active)
  return active
}

const getProposalType = async (api: Api, id: number): Promise<string> => {
  const details: ProposalDetailsOf = await api.query.proposalsCodex.proposalDetailsByProposalId(
    id
  )
  const [type]: string[] = Object.getOwnPropertyNames(details.toJSON())
  return type
}

export const proposalDetail = async (
  api: Api,
  id: number
): Promise<ProposalDetail> => {
  const proposal: Proposal = await api.query.proposalsEngine.proposals(id)
  const status: { [key: string]: any } = proposal.status
  const stage: string = status.isActive ? 'Active' : 'Finalized'
  const { finalizedAt, proposalStatus } = status[`as${stage}`]
  const result: string = proposalStatus
    ? (proposalStatus.isApproved && 'Approved') ||
      (proposalStatus.isCanceled && 'Canceled') ||
      (proposalStatus.isExpired && 'Expired') ||
      (proposalStatus.isRejected && 'Rejected') ||
      (proposalStatus.isSlashed && 'Slashed') ||
      (proposalStatus.isVetoed && 'Vetoed')
    : 'Pending'
  const exec = proposalStatus ? proposalStatus['Approved'] : null

  const { description, parameters, proposerId, votingResults } = proposal
  const author: string = await memberHandle(api, proposerId)
  const title: string = proposal.title.toString()
  const type: string = await getProposalType(api, id)
  const args: string[] = [String(id), title, type, stage, result, author]
  const message: string = formatProposalMessage(args)
  const createdAt: number = Number(proposal.createdAt)

  return {
    id,
    title,
    createdAt,
    finalizedAt,
    parameters: JSON.stringify(parameters),
    message,
    stage,
    result,
    exec,
    description: description.toHuman(),
    votes: votingResults,
    type,
    author,
    authorId: Number(proposerId),
  }
}

// storage providers
export const providerStatus = async (domain: string): Promise<boolean> => {
  try {
    const res = await fetch(`https://${domain}:5001/api/v0/version`)
    return res.status >= 400 ? false : true
  } catch (e) {
    return false
  }
}

export const nextOpeningId = async (api: Api): Promise<number> => {
  const id = await api.query.storageWorkingGroup.nextOpeningId()
  return id.toJSON()
}

export const nextWorkerId = async (api: Api): Promise<number> => {
  const id = await api.query.storageWorkingGroup.nextWorkerId()
  return id.toJSON()
}