import {
  NotificationKind,
  IssueLinkType,
  IssuePriority,
  ProjectRole,
  ReleaseStatus,
  SprintStatus,
  StatusCategory,
} from './enums';
import { ProjectSettings } from './workflow';

export interface UserRef {
  id: string;
  name: string;
}

export interface ProjectMember {
  user: UserRef;
  role: ProjectRole;
}

export interface Project {
  id: string;
  key: string;
  name: string;
  description: string | null;
  /** Anyone can read it, also without signing in. */
  isPublic: boolean;
  owner: UserRef;
  members: ProjectMember[];
  settings: ProjectSettings;
  updatedAt: string;
  version: number;
}

export interface IssueLink {
  type: IssueLinkType;
  /** OUTWARD: this issue → other. INWARD: other → this issue. */
  direction: 'OUTWARD' | 'INWARD';
  issueId: string;
  issueKey: string;
}

/** The ticket another one hangs from. */
export interface IssueParent {
  id: string;
  key: string;
  title: string;
}

/** A step inside a ticket that does not deserve a ticket of its own. */
export interface ChecklistItem {
  id: string;
  text: string;
  done: boolean;
}

/** How far the tickets hanging from one have got. */
export interface ChildProgress {
  total: number;
  /** Done or cancelled. */
  finished: number;
  percent: number;
  storyPoints: number;
  finishedStoryPoints: number;
}

/** A top-level ticket that groups others. */
export interface Epic {
  issue: IssueSummary;
  progress: ChildProgress;
}

/** What a saved view narrows the board to; empty: everything. */
export interface SavedFilterCriteria {
  types?: string[] | null;
  areas?: string[] | null;
  priorities?: IssuePriority[] | null;
  assigneeId?: string | null;
  unassigned?: boolean | null;
  releaseId?: string | null;
  labels?: string[] | null;
  search?: string | null;
}

/** A named view of the board: private, or shared with the project. */
export interface SavedFilter {
  id: string;
  projectId: string;
  owner: UserRef;
  name: string;
  shared: boolean;
  criteria: SavedFilterCriteria;
  createdAt: string;
}

/** What boards and lists show. */
export interface IssueSummary {
  id: string;
  projectId: string;
  key: string;
  /** Ids of the project's settings. */
  type: string;
  area: string | null;
  title: string;
  status: string;
  statusCategory: StatusCategory;
  priority: IssuePriority;
  assignee: UserRef | null;
  release: { id: string; name: string } | null;
  sprint: { id: string; name: string } | null;
  labels: string[];
  /** The epic or ticket this one breaks down. */
  parent: IssueParent | null;
  /** Place in the backlog and in its board column (ascending, as text). */
  rank: string;
  /** Estimate; null when nobody estimated it. */
  storyPoints: number | null;
  /** Planned start and end (`YYYY-MM-DD`), for the roadmap. */
  startDate: string | null;
  dueDate: string | null;
  commentCount: number;
  updatedAt: string;
  version: number;
}

/** A page of tickets: the ones returned and how many match in total. */
export interface IssuePage {
  items: IssueSummary[];
  total: number;
}

/** A file on a ticket (or under one of its comments). */
export interface Attachment {
  id: string;
  fileName: string;
  mimeType: string;
  /** Bytes. */
  size: number;
  uploadedBy: UserRef;
  uploadedAt: string;
  commentId: string | null;
}

export interface Issue extends IssueSummary {
  description: string | null;
  reporter: UserRef;
  figmaUrl: string | null;
  links: IssueLink[];
  attachments: Attachment[];
  /** People following the ticket. */
  watchers: UserRef[];
  checklist: ChecklistItem[];
  /** Commits, branches and pull requests that mention it. */
  devLinks: DevLink[];
  allowedTransitions: string[];
  createdAt: string;
}

/** A commit, branch or pull request that mentions a ticket. */
export interface DevLink {
  kind: 'COMMIT' | 'BRANCH' | 'PULL_REQUEST';
  url: string;
  title: string;
  /** Short SHA, branch or PR number. */
  ref: string;
  state: 'OPEN' | 'MERGED' | 'CLOSED' | null;
  provider: string;
  author: string | null;
  at: string;
}

export interface WebhookDelivery {
  at: string;
  event: string;
  /** HTTP status, null when it never answered. */
  status: number | null;
  ok: boolean;
  error: string | null;
}

/** Where the project tells another system what happened. */
export interface Webhook {
  id: string;
  url: string;
  /** Event names, `family.*` or `*`. */
  events: string[];
  active: boolean;
  createdBy: UserRef;
  createdAt: string;
  lastDelivery: WebhookDelivery | null;
}

/** What an import did (or, as a preview, would do). */
export interface ImportReport {
  format: 'taskstream' | 'jira';
  dryRun: boolean;
  rows: number;
  created: number;
  keys: string[];
  skipped: { line: number; reason?: string }[];
  warnings: { line: number; message?: string }[];
}

/** The project's webhook for GitHub, Gitea or GitLab. */
export interface GitIntegration {
  enabled: boolean;
  /** Only for owners and admins. */
  secret: string | null;
  webhookPath: string;
}

export interface Comment {
  id: string;
  issueId: string;
  author: UserRef;
  body: string;
  createdAt: string;
  editedAt: string | null;
}

export interface SprintProgress {
  total: number;
  /** Done or cancelled. */
  finished: number;
  percent: number;
  storyPoints: number;
  finishedStoryPoints: number;
}

/** A time-boxed iteration of a project. */
export interface Sprint {
  id: string;
  projectId: string;
  name: string;
  goal: string | null;
  /** `YYYY-MM-DD`, both included. */
  startDate: string;
  endDate: string;
  status: SprintStatus;
  startedAt: string | null;
  closedAt: string | null;
  progress: SprintProgress;
}

/** Per day of a sprint; null for the days to come. */
export interface SprintBurndown {
  sprintId: string;
  dates: string[];
  scope: (number | null)[];
  remaining: (number | null)[];
  remainingPoints: (number | null)[];
  ideal: number[];
}

export interface Release {
  id: string;
  projectId: string;
  name: string;
  description: string | null;
  targetDate: string | null;
  status: ReleaseStatus;
  releasedAt: string | null;
  /** What shipped, told for people (Markdown). */
  notes: string | null;
  progress: { total: number; finished: number; percent: number };
}

export interface Activity {
  id: string;
  type: string;
  issueId: string | null;
  issueKey: string | null;
  actor: UserRef;
  summary: string;
  occurredAt: string;
}

export interface CountBy<T = string> {
  key: T;
  count: number;
}

export interface ProjectStats {
  total: number;
  open: number;
  byStatus: CountBy[];
  byType: CountBy[];
  byPriority: CountBy[];
  byArea: CountBy[];
  byAssignee: { user: UserRef | null; count: number }[];
}

export interface BoardColumn {
  status: string;
  issues: IssueSummary[];
  total: number;
}

export interface DurationStats {
  count: number;
  averageDays: number | null;
  /** 85% of tickets take at most this long. */
  p85Days: number | null;
}

/** Statistics of a project over the last days. */
export interface ProjectAnalytics {
  from: string;
  to: string;
  /** Per week (Monday, YYYY-MM-DD). */
  createdVsResolved: { week: string; created: number; resolved: number }[];
  /** Tickets in each status at the end of every day. */
  cumulativeFlow: {
    dates: string[];
    series: { status: string; counts: number[] }[];
  };
  /** Start of work → done. */
  cycleTime: DurationStats;
  /** Creation → done. */
  leadTime: DurationStats;
  throughput: { week: string; user: UserRef | null; count: number }[];
  qa: { passed: number; failed: number; failureRate: number | null };
}

/** Scope vs finished tickets of a release, day by day. */
export interface ReleaseBurnup {
  releaseId: string;
  targetDate: string | null;
  dates: string[];
  scope: number[];
  done: number[];
}

export interface UserDirectoryEntry {
  id: string;
  name: string;
  email: string;
}

/** Ack of a command: the read model catches up asynchronously. */
export interface CommandResult {
  id: string;
  key?: string | null;
  version: number;
}

/** Something the signed-in person should know. */
export interface Notification {
  id: string;
  kind: NotificationKind;
  projectId: string;
  projectKey: string;
  issueId: string | null;
  issueKey: string | null;
  actor: UserRef;
  summary: string;
  /** Null: unread. */
  readAt: string | null;
  createdAt: string;
}

export interface NotificationSettings {
  /** Copies by e-mail. */
  email: boolean;
  /** Whether this installation can send e-mail at all. */
  emailAvailable: boolean;
}