import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import {
  IssueLinkType,
  IssuePriority,
  NotificationKind,
  ProjectRole,
  ReleaseStatus,
  SprintStatus,
  SETTING_COLORS,
  StatusCategory,
  TYPE_ICONS,
} from '@task-stream/api/tracker/domain';

/*
 * REST response bodies. Same shapes as the GraphQL types (both are views of
 * the read models); here they only document the contract for OpenAPI.
 */

export class UserRefDto {
  @ApiProperty({ description: 'Pireon user id' }) id!: string;
  @ApiProperty() name!: string;
}

export class ProjectMemberDto {
  @ApiProperty({ type: UserRefDto }) user!: UserRefDto;
  @ApiProperty({ enum: ProjectRole, enumName: 'ProjectRole' })
  role!: ProjectRole;
}

export class WorkflowStatusDto {
  @ApiProperty({ example: 'IN_REVIEW', description: 'Stable id on tickets' })
  id!: string;
  @ApiProperty({ example: 'En revisión' }) name!: string;
  @ApiProperty({ enum: StatusCategory, enumName: 'StatusCategory' })
  category!: StatusCategory;
  @ApiProperty({ enum: SETTING_COLORS, enumName: 'SettingColor' })
  color!: string;
  @ApiProperty({ description: 'Entering it needs a reason' })
  requiresReason!: boolean;
  @ApiProperty({ description: 'No new tickets or transitions into it' })
  archived!: boolean;
}

export class StatusTransitionsDto {
  @ApiProperty({ example: 'IN_QA' }) from!: string;
  @ApiProperty({ type: [String], example: ['DONE', 'QA_FAILED'] })
  to!: string[];
}

export class IssueTypeOptionDto {
  @ApiProperty({ example: 'BUG' }) id!: string;
  @ApiProperty({ example: 'Bug' }) name!: string;
  @ApiProperty({ enum: TYPE_ICONS, enumName: 'TypeIcon' }) icon!: string;
  @ApiProperty({ enum: SETTING_COLORS, enumName: 'SettingColor' })
  color!: string;
  @ApiProperty() archived!: boolean;
}

export class AreaOptionDto {
  @ApiProperty({ example: 'FRONTEND' }) id!: string;
  @ApiProperty({ example: 'Frontend' }) name!: string;
  @ApiProperty() archived!: boolean;
}

export class ProjectSettingsDto {
  @ApiProperty({ type: [WorkflowStatusDto], description: 'In board order' })
  statuses!: WorkflowStatusDto[];
  @ApiProperty({ type: [StatusTransitionsDto] })
  transitions!: StatusTransitionsDto[];
  @ApiProperty({ type: [IssueTypeOptionDto] })
  issueTypes!: IssueTypeOptionDto[];
  @ApiProperty({ type: [AreaOptionDto] }) areas!: AreaOptionDto[];
}

export class ProjectDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'WEB', description: 'Prefix of the ticket keys' })
  key!: string;
  @ApiProperty({ example: 'Checkout revamp' }) name!: string;
  @ApiProperty({ type: String, nullable: true }) description!: string | null;
  @ApiProperty({ description: 'Readable by anyone, also without a token' })
  isPublic!: boolean;
  @ApiProperty({ type: UserRefDto }) owner!: UserRefDto;
  @ApiProperty({ type: [ProjectMemberDto] }) members!: ProjectMemberDto[];
  @ApiProperty({ type: ProjectSettingsDto })
  settings!: ProjectSettingsDto;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
  @ApiProperty({ format: 'date-time' }) updatedAt!: string;
  @ApiProperty({ description: 'Version of the aggregate (event count)' })
  version!: number;
}

export class IssueLinkDto {
  @ApiProperty({ enum: IssueLinkType, enumName: 'IssueLinkType' })
  type!: IssueLinkType;
  @ApiProperty({
    enum: ['OUTWARD', 'INWARD'],
    enumName: 'LinkDirection',
    description: 'OUTWARD: this issue → other. INWARD: other → this issue.',
  })
  direction!: 'OUTWARD' | 'INWARD';
  @ApiProperty({ format: 'uuid' }) issueId!: string;
  @ApiProperty({ example: 'WEB-3' }) issueKey!: string;
}

export class ReleaseRefDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'v1.4.0' }) name!: string;
}

export class AttachmentDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'captura-login.png' }) fileName!: string;
  @ApiProperty({ example: 'image/png' }) mimeType!: string;
  @ApiProperty({ description: 'Bytes', example: 48213 }) size!: number;
  @ApiProperty({ type: UserRefDto }) uploadedBy!: UserRefDto;
  @ApiProperty({ format: 'date-time' }) uploadedAt!: string;
  @ApiProperty({
    type: String,
    nullable: true,
    format: 'uuid',
    description: 'The comment it was attached to, if any',
  })
  commentId!: string | null;
}

export class ChecklistItemDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'Actualizar el changelog' }) text!: string;
  @ApiProperty() done!: boolean;
}

export class IssueParentDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'WEB-3' }) key!: string;
  @ApiProperty({ example: 'Pago con tarjeta' }) title!: string;
}

export class SprintRefDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ example: 'Sprint 14' }) name!: string;
}

export class IssueDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ example: 'WEB' }) projectKey!: string;
  @ApiProperty({ example: 12 }) number!: number;
  @ApiProperty({ example: 'WEB-12', description: 'Human key' }) key!: string;
  @ApiProperty({ example: 'BUG', description: 'A ticket type id' })
  type!: string;
  @ApiProperty({ type: String, nullable: true, example: 'FRONTEND' })
  area!: string | null;
  @ApiProperty() title!: string;
  @ApiProperty({ type: String, nullable: true }) description!: string | null;
  @ApiProperty({ example: 'IN_PROGRESS', description: 'A status id' })
  status!: string;
  @ApiProperty({ enum: StatusCategory, enumName: 'StatusCategory' })
  statusCategory!: StatusCategory;
  @ApiProperty({
    type: [String],
    description: "Statuses this ticket can move to next (project's workflow)",
  })
  allowedTransitions!: string[];
  @ApiProperty({ enum: IssuePriority, enumName: 'IssuePriority' })
  priority!: IssuePriority;
  @ApiProperty({ type: UserRefDto }) reporter!: UserRefDto;
  @ApiProperty({ type: UserRefDto, nullable: true })
  assignee!: UserRefDto | null;
  @ApiProperty({ type: ReleaseRefDto, nullable: true })
  release!: ReleaseRefDto | null;
  @ApiProperty({ type: SprintRefDto, nullable: true })
  sprint!: SprintRefDto | null;
  @ApiProperty({ type: [String] }) labels!: string[];
  @ApiProperty({ type: String, nullable: true, description: 'Figma frame' })
  figmaUrl!: string | null;
  @ApiProperty({ type: Number, nullable: true }) storyPoints!: number | null;
  @ApiProperty({ type: String, nullable: true, format: 'date' })
  dueDate!: string | null;
  @ApiProperty({ type: [IssueLinkDto] }) links!: IssueLinkDto[];
  @ApiProperty({ type: [AttachmentDto] }) attachments!: AttachmentDto[];
  @ApiProperty({ type: [UserRefDto], description: 'People following it' })
  watchers!: UserRefDto[];
  @ApiProperty({
    type: IssueParentDto,
    nullable: true,
    description: 'The epic or ticket this one breaks down',
  })
  parent!: IssueParentDto | null;
  @ApiProperty({
    description:
      'Place in the backlog and its board column (ascending, as text)',
  })
  rank!: string;
  @ApiProperty({ type: [ChecklistItemDto] }) checklist!: ChecklistItemDto[];
  @ApiProperty() commentCount!: number;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
  @ApiProperty({ format: 'date-time' }) updatedAt!: string;
  @ApiProperty() version!: number;
}

export class SavedFilterCriteriaResponseDto {
  @ApiPropertyOptional({ type: [String] }) types?: string[];
  @ApiPropertyOptional({ type: [String] }) areas?: string[];
  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  priorities?: IssuePriority[];
  @ApiPropertyOptional({ type: String, nullable: true })
  assigneeId?: string | null;
  @ApiPropertyOptional() unassigned?: boolean;
  @ApiPropertyOptional({ type: String, nullable: true, format: 'uuid' })
  releaseId?: string | null;
  @ApiPropertyOptional({ type: [String] }) labels?: string[];
  @ApiPropertyOptional({ type: String, nullable: true })
  search?: string | null;
}

export class SavedFilterDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ type: UserRefDto }) owner!: UserRefDto;
  @ApiProperty({ example: 'Bugs críticos de frontend' }) name!: string;
  @ApiProperty({ description: 'Visible to the whole project' })
  shared!: boolean;
  @ApiProperty({ type: SavedFilterCriteriaResponseDto })
  criteria!: SavedFilterCriteriaResponseDto;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
}

export class SavedFilterIdDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
}

export class IssuePageDto {
  @ApiProperty({ type: [IssueDto] }) items!: IssueDto[];
  @ApiProperty({ description: 'Total matches (for pagination)' })
  total!: number;
}

export class BoardColumnDto {
  @ApiProperty({ example: 'IN_PROGRESS' }) status!: string;
  @ApiProperty({ type: [IssueDto] }) issues!: IssueDto[];
  @ApiProperty({ description: 'Tickets in the column (may exceed `issues`)' })
  total!: number;
}

export class CommentDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ format: 'uuid' }) issueId!: string;
  @ApiProperty({ type: UserRefDto }) author!: UserRefDto;
  @ApiProperty() body!: string;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
  @ApiProperty({ type: String, nullable: true, format: 'date-time' })
  editedAt!: string | null;
  @ApiProperty() version!: number;
}

export class CommentPageDto {
  @ApiProperty({ type: [CommentDto] }) items!: CommentDto[];
  @ApiProperty() total!: number;
}

export class SprintDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ example: 'Sprint 14' }) name!: string;
  @ApiProperty({ type: String, nullable: true }) goal!: string | null;
  @ApiProperty({ format: 'date' }) startDate!: string;
  @ApiProperty({ format: 'date', description: 'Last day, included' })
  endDate!: string;
  @ApiProperty({ enum: SprintStatus, enumName: 'SprintStatus' })
  status!: SprintStatus;
  @ApiProperty({ type: String, nullable: true, format: 'date-time' })
  startedAt!: string | null;
  @ApiProperty({ type: String, nullable: true, format: 'date-time' })
  closedAt!: string | null;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
  @ApiProperty() version!: number;
}

export class SprintProgressDto {
  @ApiProperty() total!: number;
  @ApiProperty({ description: 'Done or cancelled' }) finished!: number;
  @ApiProperty({ minimum: 0, maximum: 100 }) percent!: number;
  @ApiProperty() storyPoints!: number;
  @ApiProperty() finishedStoryPoints!: number;
}

export class SprintBurndownDto {
  @ApiProperty({ format: 'uuid' }) sprintId!: string;
  @ApiProperty({ type: [String], format: 'date' }) dates!: string[];
  @ApiProperty({
    type: [Number],
    nullable: true,
    description: 'Tickets in the sprint (null: days to come)',
  })
  scope!: (number | null)[];
  @ApiProperty({ type: [Number], nullable: true }) remaining!: (
    | number
    | null
  )[];
  @ApiProperty({ type: [Number], nullable: true })
  remainingPoints!: (number | null)[];
  @ApiProperty({ type: [Number] }) ideal!: number[];
}

export class ReleaseDto {
  @ApiProperty({ format: 'uuid' }) id!: string;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ example: 'v1.4.0' }) name!: string;
  @ApiProperty({ type: String, nullable: true }) description!: string | null;
  @ApiProperty({ type: String, nullable: true, format: 'date' })
  targetDate!: string | null;
  @ApiProperty({ enum: ReleaseStatus, enumName: 'ReleaseStatus' })
  status!: ReleaseStatus;
  @ApiProperty({ type: String, nullable: true, format: 'date-time' })
  releasedAt!: string | null;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
  @ApiProperty() version!: number;
}

export class CountByStatusDto {
  @ApiProperty({ example: 'IN_PROGRESS', description: 'Status id' })
  key!: string;
  @ApiProperty() count!: number;
}

export class CountByKeyDto {
  @ApiProperty({ description: 'Type, priority or area ("NONE" = unset)' })
  key!: string;
  @ApiProperty() count!: number;
}

export class CountByAssigneeDto {
  @ApiProperty({
    type: UserRefDto,
    nullable: true,
    description: 'Null = unassigned',
  })
  user!: UserRefDto | null;
  @ApiProperty() count!: number;
}

export class ChildProgressDto {
  @ApiProperty() total!: number;
  @ApiProperty({ description: 'Done or cancelled' }) finished!: number;
  @ApiProperty({ minimum: 0, maximum: 100 }) percent!: number;
  @ApiProperty() storyPoints!: number;
  @ApiProperty() finishedStoryPoints!: number;
}

export class EpicDto {
  @ApiProperty({ type: IssueDto }) issue!: IssueDto;
  @ApiProperty({ type: ChildProgressDto }) progress!: ChildProgressDto;
}

export class ReleaseProgressDto {
  @ApiProperty() total!: number;
  @ApiProperty() finished!: number;
  @ApiProperty({ minimum: 0, maximum: 100 }) percent!: number;
  @ApiProperty({ type: [CountByStatusDto] }) byStatus!: CountByStatusDto[];
}

export class ProjectStatsDto {
  @ApiProperty() total!: number;
  @ApiProperty({ description: 'Not done nor cancelled' }) open!: number;
  @ApiProperty({ type: [CountByStatusDto] }) byStatus!: CountByStatusDto[];
  @ApiProperty({ type: [CountByKeyDto] }) byType!: CountByKeyDto[];
  @ApiProperty({ type: [CountByKeyDto] }) byPriority!: CountByKeyDto[];
  @ApiProperty({ type: [CountByKeyDto] }) byArea!: CountByKeyDto[];
  @ApiProperty({
    type: [CountByAssigneeDto],
    description: 'Open tickets per person',
  })
  byAssignee!: CountByAssigneeDto[];
}

export class ActivityDto {
  @ApiProperty() id!: string;
  @ApiProperty({ example: 'IssueStatusChanged' }) type!: string;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ type: String, nullable: true }) issueId!: string | null;
  @ApiProperty({ type: String, nullable: true, example: 'WEB-12' })
  issueKey!: string | null;
  @ApiProperty({ type: UserRefDto }) actor!: UserRefDto;
  @ApiProperty({ example: 'Ana movió WEB-12 de En curso a En revisión' })
  summary!: string;
  @ApiProperty({ format: 'date-time' }) occurredAt!: string;
}

export class CommandResultDto {
  @ApiProperty({ description: 'Id of the aggregate written' }) id!: string;
  @ApiPropertyOptional({
    description: 'Human key when one was assigned (project or issue)',
    example: 'WEB-13',
  })
  key?: string;
  @ApiProperty({
    description:
      'Version after the write. Writes are acknowledged at once and the read ' +
      'model catches up asynchronously: a GET may briefly return the previous ' +
      'version (or 404 right after a create).',
  })
  version!: number;
}

// ---- Statistics ---------------------------------------------------------------

export class CreatedResolvedDto {
  @ApiProperty({ format: 'date', description: 'Monday of the week' })
  week!: string;
  @ApiProperty() created!: number;
  @ApiProperty() resolved!: number;
}

export class FlowSeriesDto {
  @ApiProperty({ example: 'IN_PROGRESS' }) status!: string;
  @ApiProperty({ type: [Number], description: 'One value per date' })
  counts!: number[];
}

export class CumulativeFlowDto {
  @ApiProperty({ type: [String], format: 'date' }) dates!: string[];
  @ApiProperty({ type: [FlowSeriesDto] }) series!: FlowSeriesDto[];
}

export class DurationStatsDto {
  @ApiProperty() count!: number;
  @ApiProperty({ type: Number, nullable: true }) averageDays!: number | null;
  @ApiProperty({
    type: Number,
    nullable: true,
    description: '85% of tickets take at most this long',
  })
  p85Days!: number | null;
}

export class ThroughputDto {
  @ApiProperty({ format: 'date' }) week!: string;
  @ApiProperty({ type: UserRefDto, nullable: true }) user!: UserRefDto | null;
  @ApiProperty() count!: number;
}

export class QaStatsDto {
  @ApiProperty({ description: 'Left QA to a done status' }) passed!: number;
  @ApiProperty({ description: 'Left QA back to work' }) failed!: number;
  @ApiProperty({ type: Number, nullable: true, minimum: 0, maximum: 1 })
  failureRate!: number | null;
}

export class ProjectAnalyticsDto {
  @ApiProperty({ format: 'date-time' }) from!: string;
  @ApiProperty({ format: 'date-time' }) to!: string;
  @ApiProperty({ type: [CreatedResolvedDto] })
  createdVsResolved!: CreatedResolvedDto[];
  @ApiProperty({
    type: CumulativeFlowDto,
    description: 'Tickets in each status at the end of every day',
  })
  cumulativeFlow!: CumulativeFlowDto;
  @ApiProperty({ type: DurationStatsDto, description: 'Start of work → done' })
  cycleTime!: DurationStatsDto;
  @ApiProperty({ type: DurationStatsDto, description: 'Creation → done' })
  leadTime!: DurationStatsDto;
  @ApiProperty({ type: [ThroughputDto] }) throughput!: ThroughputDto[];
  @ApiProperty({ type: QaStatsDto }) qa!: QaStatsDto;
}

export class ReleaseBurnupDto {
  @ApiProperty({ format: 'uuid' }) releaseId!: string;
  @ApiProperty({ type: String, nullable: true, format: 'date' })
  targetDate!: string | null;
  @ApiProperty({ type: [String], format: 'date' }) dates!: string[];
  @ApiProperty({
    type: [Number],
    description: 'Tickets in the release (not cancelled)',
  })
  scope!: number[];
  @ApiProperty({ type: [Number] }) done!: number[];
}

// ---- Notifications ----------------------------------------------------------

export class NotificationDto {
  @ApiProperty() id!: string;
  @ApiProperty({ enum: NotificationKind, enumName: 'NotificationKind' })
  kind!: NotificationKind;
  @ApiProperty({ format: 'uuid' }) projectId!: string;
  @ApiProperty({ example: 'WEB' }) projectKey!: string;
  @ApiProperty({ type: String, nullable: true, format: 'uuid' })
  issueId!: string | null;
  @ApiProperty({ type: String, nullable: true, example: 'WEB-12' })
  issueKey!: string | null;
  @ApiProperty({ type: UserRefDto }) actor!: UserRefDto;
  @ApiProperty({ example: 'Ana te asignó WEB-12: Login roto en Safari' })
  summary!: string;
  @ApiProperty({
    type: String,
    nullable: true,
    format: 'date-time',
    description: 'Null: unread',
  })
  readAt!: string | null;
  @ApiProperty({ format: 'date-time' }) createdAt!: string;
}

export class MyNotificationsDto {
  @ApiProperty({ type: [NotificationDto] }) items!: NotificationDto[];
  @ApiProperty({ description: 'All my unread ones, not just these' })
  unread!: number;
}

export class NotificationSettingsResponseDto {
  @ApiProperty({ description: 'Copies by e-mail' }) email!: boolean;
  @ApiProperty({ description: 'Whether this installation can send e-mail' })
  emailAvailable!: boolean;
}