feat: Add APIs for linear integration (#9346)

lib/linear/mutations.rb

@@ -0,0 +1,56 @@
+module Linear::Mutations
+  def self.graphql_value(value)
+    case value
+    when String
+      # Strings must be enclosed in double quotes
+      "\"#{value}\""
+    when Array
+      # Arrays need to be recursively converted
+      "[#{value.map { |v| graphql_value(v) }.join(', ')}]"
+    else
+      # Other types (numbers, booleans) can be directly converted to strings
+      value.to_s
+    end
+  end
+
+  def self.graphql_input(input)
+    input.map { |key, value| "#{key}: #{graphql_value(value)}" }.join(', ')
+  end
+
+  def self.issue_create(input)
+    <<~GRAPHQL
+      mutation {
+        issueCreate(input: { #{graphql_input(input)} }) {
+          success
+          issue {
+            id
+            title
+          }
+        }
+      }
+    GRAPHQL
+  end
+
+  def self.issue_link(issue_id, link, title)
+    <<~GRAPHQL
+      mutation {
+        attachmentLinkURL(url: "#{link}", issueId: "#{issue_id}", title: "#{title}") {
+          success
+          attachment {
+            id
+          }
+        }
+      }
+    GRAPHQL
+  end
+
+  def self.unlink_issue(link_id)
+    <<~GRAPHQL
+      mutation {
+        attachmentDelete(id: "#{link_id}") {
+          success
+        }
+      }
+    GRAPHQL
+  end
+end

lib/linear/queries.rb

@@ -0,0 +1,100 @@
+module Linear::Queries
+  TEAMS_QUERY = <<~GRAPHQL.freeze
+    query {
+      teams {
+        nodes {
+          id
+          name
+        }
+      }
+    }
+  GRAPHQL
+
+  def self.team_entities_query(team_id)
+    <<~GRAPHQL
+      query {
+        users {
+          nodes {
+            id
+            name
+          }
+        }
+        projects {
+          nodes {
+            id
+            name
+          }
+        }
+        workflowStates(
+          filter: { team: { id: { eq: "#{team_id}" } } }
+        ) {
+          nodes {
+            id
+            name
+          }
+        }
+        issueLabels(
+          filter: { team: { id: { eq: "#{team_id}" } } }
+        ) {
+          nodes {
+            id
+            name
+          }
+        }
+      }
+    GRAPHQL
+  end
+
+  def self.search_issue(term)
+    <<~GRAPHQL
+      query {
+        searchIssues(term: "#{term}") {
+          nodes {
+            id
+            title
+            description
+            identifier
+          }
+        }
+      }
+    GRAPHQL
+  end
+
+  def self.linked_issues(url)
+    <<~GRAPHQL
+      query {
+        attachmentsForURL(url: "#{url}") {
+          nodes {
+            id
+            title
+            issue {
+              id
+              identifier
+              title
+              description
+              priority
+              createdAt
+              url
+              assignee {
+                name
+                avatarUrl
+              }
+              state {
+                name
+                color
+              }
+              labels {
+                nodes{
+                  id
+                  name
+                  color
+                  description
+                }
+              }
+            }
+          }
+        }
+      }
+    GRAPHQL
+  end
+end