name: 'Repository Maintenance'

on:
  schedule:
    - cron: '0 3 * * *'
  workflow_dispatch:

permissions:
  issues: write
  pull-requests: write
  discussions: write

concurrency:
  group: lock

jobs:
  stale:
    name: 'Stale'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/stale@v9
        with:
          days-before-stale: 7
          days-before-close: 14
          stale-issue-label: stale
          stale-pr-label: stale
          stale-issue-message: >
            This issue has been automatically marked as stale because it has not had
            recent activity. It will be closed if no further activity occurs. Thank you
            for your contributions.
  lock-threads:
    name: 'Lock Old Threads'
    runs-on: ubuntu-latest
    steps:
      - uses: dessant/lock-threads@v5
        with:
          issue-inactive-days: '30'
          pr-inactive-days: '30'
          discussion-inactive-days: '30'
          log-output: true
          issue-comment: >
            This issue has been automatically locked since there
            has not been any recent activity after it was closed.
            Please open a new discussion for related concerns.
          pr-comment: >
            This pull request has been automatically locked since there
            has not been any recent activity after it was closed.
            Please open a new discussion for related concerns.
          discussion-comment: >
            This discussion has been automatically locked since there
            has not been any recent activity after it was closed.
            Please open a new discussion for related concerns.
  close-answered-discussions:
    name: 'Close Answered Discussions'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v7
        with:
          script: |
            function sleep(ms) {
              return new Promise(resolve => setTimeout(resolve, ms));
            }

            const query = `query($owner:String!, $name:String!) {
              repository(owner:$owner, name:$name){
                discussions(first:100, answered:true, states:[OPEN]) {
                  nodes {
                    id,
                    number
                  }
                }
              }
            }`;
            const variables = {
              owner: context.repo.owner,
              name: context.repo.repo,
            }
            const result = await github.graphql(query, variables)

            console.log(`Found ${result.repository.discussions.nodes.length} open answered discussions`)

            for (const discussion of result.repository.discussions.nodes) {
              console.log(`Closing discussion #${discussion.number} (${discussion.id})`)

              const addCommentMutation = `mutation($discussion:ID!, $body:String!) {
                addDiscussionComment(input:{discussionId:$discussion, body:$body}) {
                  clientMutationId
                }
              }`;
              const commentVariables = {
                discussion: discussion.id,
                body: 'This discussion has been automatically closed because it was marked as answered.',
              }
              await github.graphql(addCommentMutation, commentVariables)

              const closeDiscussionMutation = `mutation($discussion:ID!, $reason:DiscussionCloseReason!) {
                closeDiscussion(input:{discussionId:$discussion, reason:$reason}) {
                  clientMutationId
                }
              }`;
              const closeVariables = {
                discussion: discussion.id,
                reason: "RESOLVED",
              }
              await github.graphql(closeDiscussionMutation, closeVariables)

              await sleep(1000)
            }
  close-outdated-discussions:
    name: 'Close Outdated Discussions'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v7
        with:
          script: |
            function sleep(ms) {
              return new Promise(resolve => setTimeout(resolve, ms));
            }

            const CUTOFF_DAYS = 180;
            const cutoff = new Date();
            cutoff.setDate(cutoff.getDate() - CUTOFF_DAYS);

            const query = `query(
                $owner:String!,
                $name:String!,
                $supportCategory:ID!,
                $generalCategory:ID!,
              ) {
              supportDiscussions: repository(owner:$owner, name:$name){
                discussions(
                  categoryId:$supportCategory,
                  last:50,
                  answered:false,
                  states:[OPEN],
                ) {
                  nodes {
                    id,
                    number,
                    updatedAt
                  }
                },
              },
              generalDiscussions: repository(owner:$owner, name:$name){
                discussions(
                  categoryId:$generalCategory,
                  last:50,
                  states:[OPEN],
                ) {
                  nodes {
                    id,
                    number,
                    updatedAt
                  }
                }
              }
            }`;
            const variables = {
              owner: context.repo.owner,
              name: context.repo.repo,
              supportCategory: "DIC_kwDOH31rQM4CRErR",
              generalCategory: "DIC_kwDOH31rQM4CRErQ"
            }
            const result = await github.graphql(query, variables);
            const combinedDiscussions = [
              ...result.supportDiscussions.discussions.nodes,
              ...result.generalDiscussions.discussions.nodes,
            ]

            console.log(`Checking ${combinedDiscussions.length} open discussions`);

            for (const discussion of combinedDiscussions) {
              if (new Date(discussion.updatedAt) < cutoff) {
                console.log(`Closing outdated discussion #${discussion.number} (${discussion.id}), last updated at ${discussion.updatedAt}`);
                const addCommentMutation = `mutation($discussion:ID!, $body:String!) {
                  addDiscussionComment(input:{discussionId:$discussion, body:$body}) {
                    clientMutationId
                  }
                }`;
                const commentVariables = {
                  discussion: discussion.id,
                  body: 'This discussion has been automatically closed due to inactivity.',
                }
                await github.graphql(addCommentMutation, commentVariables);

                const closeDiscussionMutation = `mutation($discussion:ID!, $reason:DiscussionCloseReason!) {
                  closeDiscussion(input:{discussionId:$discussion, reason:$reason}) {
                    clientMutationId
                  }
                }`;
                const closeVariables = {
                  discussion: discussion.id,
                  reason: "OUTDATED",
                }
                await github.graphql(closeDiscussionMutation, closeVariables);

                await sleep(1000);
              }
            }
  close-unsupported-feature-requests:
    name: 'Close Unsupported Feature Requests'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v7
        with:
          script: |
            function sleep(ms) {
              return new Promise(resolve => setTimeout(resolve, ms));
            }

            const CUTOFF_1_DAYS = 180;
            const CUTOFF_1_COUNT = 5;
            const CUTOFF_2_DAYS = 365;
            const CUTOFF_2_COUNT = 10;

            const cutoff1Date = new Date();
            cutoff1Date.setDate(cutoff1Date.getDate() - CUTOFF_1_DAYS);
            const cutoff2Date = new Date();
            cutoff2Date.setDate(cutoff2Date.getDate() - CUTOFF_2_DAYS);

            const query = `query(
                $owner:String!,
                $name:String!,
                $featureRequestsCategory:ID!,
              ) {
              repository(owner:$owner, name:$name){
                discussions(
                  categoryId:$featureRequestsCategory,
                  last:100,
                  states:[OPEN],
                ) {
                  nodes {
                    id,
                    number,
                    updatedAt,
                    upvoteCount,
                  }
                },
              }
            }`;
            const variables = {
              owner: context.repo.owner,
              name: context.repo.repo,
              featureRequestsCategory: "DIC_kwDOH31rQM4CRErS"
            }
            const result = await github.graphql(query, variables);

            for (const discussion of result.repository.discussions.nodes) {
              const discussionDate = new Date(discussion.updatedAt);
              if ((discussionDate < cutoff1Date && discussion.upvoteCount < CUTOFF_1_COUNT) ||
                  (discussionDate < cutoff2Date && discussion.upvoteCount < CUTOFF_2_COUNT)) {
                console.log(`Closing discussion #${discussion.number} (${discussion.id}), last updated at ${discussion.updatedAt} with votes ${discussion.upvoteCount}`);
                const addCommentMutation = `mutation($discussion:ID!, $body:String!) {
                  addDiscussionComment(input:{discussionId:$discussion, body:$body}) {
                    clientMutationId
                  }
                }`;
                const commentVariables = {
                  discussion: discussion.id,
                  body: 'This discussion has been automatically closed due to lack of community interest.',
                }
                await github.graphql(addCommentMutation, commentVariables);

                const closeDiscussionMutation = `mutation($discussion:ID!, $reason:DiscussionCloseReason!) {
                  closeDiscussion(input:{discussionId:$discussion, reason:$reason}) {
                    clientMutationId
                  }
                }`;
                const closeVariables = {
                  discussion: discussion.id,
                  reason: "OUTDATED",
                }
                await github.graphql(closeDiscussionMutation, closeVariables);

                await sleep(1000);
              }
            }