import {
  ApiProperty,
  ApiPropertyOptional,
  OmitType,
  PartialType,
} from '@nestjs/swagger';
import {
  CustomFieldType,
  IssueLinkType,
  IssuePriority,
  ProjectRole,
  REACTIONS,
  SETTING_COLORS,
  StatusCategory,
  TYPE_ICONS,
} from '@task-stream/api/tracker/domain';
import { IssueSort } from '@task-stream/api/tracker/application';
import { Transform, Type } from 'class-transformer';
import {
  ArrayMaxSize,
  IsArray,
  IsBoolean,
  IsEnum,
  IsIn,
  IsInt,
  IsISO8601,
  IsObject,
  IsOptional,
  IsUUID,
  IsString,
  IsUrl,
  Matches,
  Max,
  MaxLength,
  Min,
  MinLength,
  ValidateIf,
  ValidateNested,
} from 'class-validator';

/* REST request bodies and query strings, validated like the GraphQL inputs. */

/** `?status=TODO&status=DONE` or `?status=TODO,DONE` → ['TODO', 'DONE']. */
const toList = ({ value }: { value: unknown }) =>
  value === undefined || value === ''
    ? undefined
    : ([] as unknown[])
        .concat(value)
        .flatMap((v) => String(v).split(','))
        .map((v) => v.trim())
        .filter(Boolean);

const toBoolean = ({ value }: { value: unknown }) =>
  value === undefined ? undefined : value === true || value === 'true';

/** Ids of statuses, types and areas (checked against the project's settings). */
const SETTING_ID = /^[A-Za-z][A-Za-z0-9_]{0,29}$/;

// ---- Projects ---------------------------------------------------------------

export class CreateProjectDto {
  @ApiProperty({
    example: 'WEB',
    description:
      '2-10 letters/digits starting with a letter → tickets WEB-1, WEB-2…',
  })
  @Matches(/^[A-Za-z][A-Za-z0-9]{1,9}$/)
  key!: string;

  @ApiProperty({ example: 'Checkout revamp', maxLength: 120 })
  @IsString()
  @MinLength(1)
  @MaxLength(120)
  name!: string;

  @ApiPropertyOptional({ type: String, nullable: true, maxLength: 5000 })
  @IsOptional()
  @IsString()
  @MaxLength(5000)
  description?: string | null;

  @ApiPropertyOptional({
    default: false,
    description:
      'Anyone can read it without signing in (board, tickets, comments, releases, activity, statistics)',
  })
  @IsOptional()
  @IsBoolean()
  isPublic?: boolean;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'API',
    description:
      'A project you own or administer (id or key) to start from: its statuses, transitions, types, areas, custom fields and automation rules are copied',
  })
  @IsOptional()
  @IsString()
  template?: string | null;
}

export class UpdateProjectDto extends PartialType(
  OmitType(CreateProjectDto, ['key', 'template'] as const),
) {
  @ApiPropertyOptional({
    description:
      'Take bug reports and ideas from anyone through the public form (while public)',
  })
  @IsOptional()
  @IsBoolean()
  acceptsProposals?: boolean;
}

export class DeleteProjectQueryDto {
  @ApiProperty({
    example: 'WEB',
    description: 'The project key, to confirm the deletion',
  })
  @IsString()
  confirm!: string;
}

export class AddMemberDto {
  @ApiProperty({ description: 'Pireon user id (see GET /users)' })
  @IsString()
  userId!: string;

  @ApiPropertyOptional({
    enum: ProjectRole,
    enumName: 'ProjectRole',
    default: ProjectRole.MEMBER,
  })
  @IsOptional()
  @IsEnum(ProjectRole)
  role: ProjectRole = ProjectRole.MEMBER;
}

// ---- Project settings -------------------------------------------------------

export class WorkflowStatusBodyDto {
  @ApiProperty({
    example: 'IN_REVIEW',
    description: 'Never change an existing id',
  })
  @Matches(SETTING_ID)
  id!: string;
  @ApiProperty({ example: 'En revisión', maxLength: 40 })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
  @ApiProperty({ enum: StatusCategory, enumName: 'StatusCategory' })
  @IsEnum(StatusCategory)
  category!: StatusCategory;
  @ApiProperty({ enum: SETTING_COLORS, enumName: 'SettingColor' })
  @IsIn(SETTING_COLORS)
  color!: string;
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  requiresReason = false;
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  archived = false;
  @ApiPropertyOptional({
    type: Number,
    nullable: true,
    minimum: 1,
    maximum: 999,
    description: 'Work-in-progress limit (null: none)',
  })
  @IsOptional()
  @IsInt()
  @Min(1)
  @Max(999)
  wipLimit?: number | null;
}

export class StatusTransitionsBodyDto {
  @ApiProperty({ example: 'IN_QA' }) @Matches(SETTING_ID) from!: string;
  @ApiProperty({ type: [String], example: ['DONE', 'QA_FAILED'] })
  @IsArray()
  @ArrayMaxSize(50)
  @Matches(SETTING_ID, { each: true })
  to!: string[];
}

export class IssueTemplateBodyDto {
  @ApiPropertyOptional({ type: String, nullable: true, maxLength: 5000 })
  @IsOptional()
  @IsString()
  @MaxLength(5000)
  description?: string | null;
  @ApiPropertyOptional({ type: [String], maxItems: 20 })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(20)
  @IsString({ each: true })
  @MaxLength(300, { each: true })
  checklist?: string[];
}

export class IssueTypeOptionBodyDto {
  @ApiProperty({ example: 'SPIKE' }) @Matches(SETTING_ID) id!: string;
  @ApiProperty({ example: 'Spike', maxLength: 40 })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
  @ApiProperty({ enum: TYPE_ICONS, enumName: 'TypeIcon' })
  @IsIn(TYPE_ICONS)
  icon!: string;
  @ApiProperty({ enum: SETTING_COLORS, enumName: 'SettingColor' })
  @IsIn(SETTING_COLORS)
  color!: string;
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  archived = false;
  @ApiPropertyOptional({
    type: IssueTemplateBodyDto,
    nullable: true,
    description: 'What a new ticket of the type starts with',
  })
  @IsOptional()
  @ValidateNested()
  @Type(() => IssueTemplateBodyDto)
  template?: IssueTemplateBodyDto | null;
}

export class AreaOptionBodyDto {
  @ApiProperty({ example: 'DATA' }) @Matches(SETTING_ID) id!: string;
  @ApiProperty({ example: 'Datos', maxLength: 40 })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  archived = false;
}

export class TeamBodyDto {
  @ApiProperty({ example: 'FRONTEND' }) @Matches(SETTING_ID) id!: string;
  @ApiProperty({ example: 'Frontend', maxLength: 40 })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
  @ApiPropertyOptional({
    type: [String],
    description: 'Pireon user ids of project members (others are dropped)',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(200)
  @IsString({ each: true })
  memberIds: string[] = [];
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  archived = false;
}

export class CustomFieldDefinitionBodyDto {
  @ApiProperty({ example: 'BROWSER' }) @Matches(SETTING_ID) id!: string;
  @ApiProperty({ example: 'Navegador', maxLength: 40 })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
  @ApiProperty({
    enum: CustomFieldType,
    enumName: 'CustomFieldType',
    description: 'Cannot change once the field exists. DATE: YYYY-MM-DD',
  })
  @IsEnum(CustomFieldType)
  type!: CustomFieldType;
  @ApiPropertyOptional({
    type: [String],
    maxItems: 50,
    example: ['Chrome', 'Safari', 'Firefox'],
    description: 'The choices of a SELECT field',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(50)
  @IsString({ each: true })
  @MaxLength(60, { each: true })
  options: string[] = [];
  @ApiPropertyOptional({ type: Boolean, default: false })
  @IsOptional()
  @IsBoolean()
  archived = false;
}

export class ProjectSettingsBodyDto {
  @ApiProperty({
    type: [WorkflowStatusBodyDto],
    description:
      'In board order. Values cannot be removed: archive them instead.',
  })
  @IsArray()
  @ArrayMaxSize(50)
  @ValidateNested({ each: true })
  @Type(() => WorkflowStatusBodyDto)
  statuses!: WorkflowStatusBodyDto[];

  @ApiProperty({ type: [StatusTransitionsBodyDto] })
  @IsArray()
  @ArrayMaxSize(50)
  @ValidateNested({ each: true })
  @Type(() => StatusTransitionsBodyDto)
  transitions!: StatusTransitionsBodyDto[];

  @ApiProperty({ type: [IssueTypeOptionBodyDto] })
  @IsArray()
  @ArrayMaxSize(50)
  @ValidateNested({ each: true })
  @Type(() => IssueTypeOptionBodyDto)
  issueTypes!: IssueTypeOptionBodyDto[];

  @ApiProperty({ type: [AreaOptionBodyDto] })
  @IsArray()
  @ArrayMaxSize(50)
  @ValidateNested({ each: true })
  @Type(() => AreaOptionBodyDto)
  areas!: AreaOptionBodyDto[];

  @ApiPropertyOptional({
    type: [CustomFieldDefinitionBodyDto],
    description: 'Absent: unchanged. Fields cannot be removed: archive them.',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(30)
  @ValidateNested({ each: true })
  @Type(() => CustomFieldDefinitionBodyDto)
  customFields?: CustomFieldDefinitionBodyDto[];

  @ApiPropertyOptional({
    type: [TeamBodyDto],
    description: 'Absent: unchanged. Teams cannot be removed: archive them.',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(30)
  @ValidateNested({ each: true })
  @Type(() => TeamBodyDto)
  teams?: TeamBodyDto[];

  @ApiPropertyOptional({
    description:
      'Definition of done: tickets reach a DONE status only with their checklist ticked (owners and admins may override). Absent: unchanged',
  })
  @IsOptional()
  @IsBoolean()
  checklistBeforeDone?: boolean;
}

export class AnalyticsQueryDto {
  @ApiPropertyOptional({ type: Number, default: 90, minimum: 7, maximum: 365 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(7)
  @Max(365)
  days = 90;
}

export class InsightsQueryDto {
  @ApiPropertyOptional({
    description:
      'ISO instant (e.g. your last visit): the answer also tells what changed after it',
    example: '2026-10-14T08:00:00Z',
  })
  @IsOptional()
  @IsISO8601()
  since?: string;
}

export class ChangeMemberRoleDto {
  @ApiProperty({ enum: ProjectRole, enumName: 'ProjectRole' })
  @IsEnum(ProjectRole)
  role!: ProjectRole;
}

export class BoardQueryDto {
  @ApiPropertyOptional({ format: 'uuid', description: 'Only this release' })
  @IsOptional()
  @IsString()
  releaseId?: string;

  @ApiPropertyOptional({ description: 'Only this person (Pireon user id)' })
  @IsOptional()
  @IsString()
  assigneeId?: string;

  @ApiPropertyOptional({ example: 'FRONTEND', description: 'An area id' })
  @IsOptional()
  @Matches(SETTING_ID)
  area?: string;

  @ApiPropertyOptional({ type: [String], description: 'Ticket type ids' })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  type?: string[];

  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  @IsOptional()
  @Transform(toList)
  @IsEnum(IssuePriority, { each: true })
  priority?: IssuePriority[];

  @ApiPropertyOptional({ type: [String] })
  @IsOptional()
  @Transform(toList)
  @IsString({ each: true })
  label?: string[];

  @ApiPropertyOptional({ description: 'Matches key, title or description' })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string;

  @ApiPropertyOptional({ description: 'Only tickets without assignee' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  unassigned?: boolean;

  @ApiPropertyOptional({ format: 'uuid', description: 'Only this sprint' })
  @IsOptional()
  @IsUUID()
  sprintId?: string;

  @ApiPropertyOptional({ type: Number, default: 50, minimum: 1, maximum: 200 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(200)
  perColumn = 50;
}

export class ActivityQueryDto {
  @ApiPropertyOptional({ format: 'uuid', description: 'Only this ticket' })
  @IsOptional()
  @IsString()
  issueId?: string;

  @ApiPropertyOptional({ type: Number, default: 50, minimum: 1, maximum: 200 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(200)
  limit = 50;

  @ApiPropertyOptional({
    format: 'date-time',
    description: 'Cursor: entries older than this date',
  })
  @IsOptional()
  @IsISO8601()
  before?: string;

  @ApiPropertyOptional({
    format: 'date-time',
    description:
      'Entries at or after this date (with before, a window such as a day)',
  })
  @IsOptional()
  @IsISO8601()
  after?: string;
}

export class PageQueryDto {
  @ApiPropertyOptional({ type: Number, default: 50, minimum: 1, maximum: 200 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(200)
  limit = 50;

  @ApiPropertyOptional({ type: Number, default: 0, minimum: 0 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(0)
  offset = 0;
}

export class DecisionsQueryDto {
  @ApiPropertyOptional({ description: 'Words in the decision' })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string;

  @ApiPropertyOptional({ type: Number, default: 20, minimum: 1, maximum: 100 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(100)
  limit = 20;
}

// ---- Issues -----------------------------------------------------------------

export class MyIssuesQueryDto extends PageQueryDto {
  @ApiPropertyOptional({
    type: Boolean,
    default: true,
    description:
      'true: tickets assigned to me. false: any ticket of my projects (e.g. ?assignedToMe=false&category=QA)',
  })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  assignedToMe = true;

  @ApiPropertyOptional({
    type: Boolean,
    description:
      'Only the tickets I follow (with assignedToMe=false, whoever they are assigned to)',
  })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  watching?: boolean;

  @ApiPropertyOptional({
    type: [String],
    description: 'Status ids. Repeat the parameter or separate with commas',
  })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  status?: string[];

  @ApiPropertyOptional({
    enum: StatusCategory,
    enumName: 'StatusCategory',
    isArray: true,
    description: 'Whatever each project calls its statuses',
  })
  @IsOptional()
  @Transform(toList)
  @IsEnum(StatusCategory, { each: true })
  category?: StatusCategory[];

  @ApiPropertyOptional({ description: 'Matches key, title or description' })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string;

  @ApiPropertyOptional({
    type: [String],
    description:
      'Only these of my projects (ids). Repeat or separate with commas',
  })
  @IsOptional()
  @Transform(toList)
  @IsUUID('all', { each: true })
  project?: string[];

  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  @IsOptional()
  @Transform(toList)
  @IsEnum(IssuePriority, { each: true })
  priority?: IssuePriority[];

  @ApiPropertyOptional({ description: 'Only types with the bug icon' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  bugsOnly?: boolean;

  @ApiPropertyOptional({ description: 'Only open tickets past their due date' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  overdue?: boolean;
}

export class UpcomingReleasesQueryDto {
  @ApiPropertyOptional({ type: Number, default: 10, minimum: 1, maximum: 50 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(50)
  limit = 10;
}

export class IssueSearchQueryDto extends PageQueryDto {
  @ApiPropertyOptional({
    type: [String],
    description: 'Status ids. Repeat the parameter or separate with commas',
  })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  status?: string[];

  @ApiPropertyOptional({
    enum: StatusCategory,
    enumName: 'StatusCategory',
    isArray: true,
  })
  @IsOptional()
  @Transform(toList)
  @IsEnum(StatusCategory, { each: true })
  category?: StatusCategory[];

  @ApiPropertyOptional({ type: [String], description: 'Ticket type ids' })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  type?: string[];

  @ApiPropertyOptional({ type: [String], description: 'Area ids' })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  area?: string[];

  @ApiPropertyOptional({ type: [String], description: 'Team ids' })
  @IsOptional()
  @Transform(toList)
  @Matches(SETTING_ID, { each: true })
  team?: string[];

  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  @IsOptional()
  @Transform(toList)
  @IsEnum(IssuePriority, { each: true })
  priority?: IssuePriority[];

  @ApiPropertyOptional({ description: 'Pireon user id' })
  @IsOptional()
  @IsString()
  assigneeId?: string;

  @ApiPropertyOptional({ description: 'Only tickets without assignee' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  unassigned?: boolean;

  @ApiPropertyOptional({ format: 'uuid' })
  @IsOptional()
  @IsString()
  releaseId?: string;

  @ApiPropertyOptional({ type: [String] })
  @IsOptional()
  @Transform(toList)
  @IsString({ each: true })
  label?: string[];

  @ApiPropertyOptional({
    description: 'Only the tickets hanging from this one (id or key)',
    example: 'WEB-3',
  })
  @IsOptional()
  @IsString()
  parent?: string;

  @ApiPropertyOptional({ format: 'uuid', description: 'Only this sprint' })
  @IsOptional()
  @IsUUID()
  sprintId?: string;

  @ApiPropertyOptional({ description: 'Only tickets in no sprint' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  noSprint?: boolean;

  @ApiPropertyOptional({
    type: Boolean,
    description: 'Only the tickets I follow (none without a token)',
  })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  watching?: boolean;

  @ApiPropertyOptional({
    format: 'date',
    description: 'Due on or after this day',
  })
  @IsOptional()
  @Matches(/^\d{4}-\d{2}-\d{2}$/)
  dueFrom?: string;

  @ApiPropertyOptional({
    format: 'date',
    description: 'Due on or before this day',
  })
  @IsOptional()
  @Matches(/^\d{4}-\d{2}-\d{2}$/)
  dueTo?: string;

  @ApiPropertyOptional({ description: 'Only tickets nobody estimated' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  noEstimate?: boolean;

  @ApiPropertyOptional({ description: 'Only tickets with no area' })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  noArea?: boolean;

  @ApiPropertyOptional({
    description: 'Only tickets not updated since this instant (ISO)',
  })
  @IsOptional()
  @IsISO8601()
  updatedBefore?: string;

  @ApiPropertyOptional({
    type: [String],
    example: ['BROWSER:Safari'],
    description:
      'Custom values the tickets must hold, as FIELD:value. Repeat the parameter for several',
  })
  @IsOptional()
  @Transform(({ value }) =>
    value === undefined
      ? undefined
      : ([] as unknown[]).concat(value).map(String),
  )
  @IsArray()
  @ArrayMaxSize(30)
  @Matches(/^[A-Za-z][A-Za-z0-9_]{0,29}:[\s\S]+$/, { each: true })
  field?: string[];

  @ApiPropertyOptional({
    enum: IssueSort,
    enumName: 'IssueSort',
    description: 'RECENT (default): last updated first. RANK: backlog order.',
  })
  @IsOptional()
  @IsEnum(IssueSort)
  sort?: IssueSort;

  @ApiPropertyOptional({ description: 'Matches key, title or description' })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string;
}

class IssueFieldsDto {
  @ApiPropertyOptional({ type: String, nullable: true, maxLength: 50000 })
  @IsOptional()
  @IsString()
  @MaxLength(50000)
  description?: string | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'FRONTEND',
    description: "An area id of the project's settings",
  })
  @IsOptional()
  @Matches(SETTING_ID)
  area?: string | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'FRONTEND',
    description: "A team id of the project's settings",
  })
  @IsOptional()
  @Matches(SETTING_ID)
  team?: string | null;

  @ApiPropertyOptional({ enum: IssuePriority, enumName: 'IssuePriority' })
  @IsOptional()
  @IsEnum(IssuePriority)
  priority?: IssuePriority;

  @ApiPropertyOptional({ type: [String], maxItems: 20 })
  @IsOptional()
  @ArrayMaxSize(20)
  @IsString({ each: true })
  @MaxLength(40, { each: true })
  labels?: string[];

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description: 'Figma frame (https) for UI changes',
  })
  @IsOptional()
  @IsUrl({ protocols: ['https'] })
  figmaUrl?: string | null;

  @ApiPropertyOptional({
    type: Number,
    nullable: true,
    minimum: 0,
    maximum: 100,
  })
  @IsOptional()
  @IsInt()
  @Min(0)
  @Max(100)
  storyPoints?: number | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    format: 'date',
    description: 'When work should start (roadmap)',
  })
  @IsOptional()
  @IsISO8601()
  startDate?: string | null;

  @ApiPropertyOptional({ type: String, nullable: true, format: 'date' })
  @IsOptional()
  @IsISO8601()
  dueDate?: string | null;

  @ApiPropertyOptional({
    type: 'object',
    additionalProperties: { type: 'string', nullable: true },
    example: { BROWSER: 'Safari' },
    description:
      "Custom field id → value. Only the fields to change; null or '' clears one",
  })
  @IsOptional()
  @IsObject()
  customFields?: Record<string, string | number | null>;
}

export class CreateIssueDto extends IssueFieldsDto {
  @ApiProperty({
    example: 'BUG',
    description: "A ticket type id of the project's settings",
  })
  @Matches(SETTING_ID)
  type!: string;

  @ApiProperty({
    example: 'El botón de pagar no responde en Safari',
    maxLength: 255,
  })
  @IsString()
  @MinLength(1)
  @MaxLength(255)
  title!: string;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description: 'Pireon user id',
  })
  @IsOptional()
  @IsString()
  assigneeId?: string | null;

  @ApiPropertyOptional({ type: String, nullable: true, format: 'uuid' })
  @IsOptional()
  @IsString()
  releaseId?: string | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'WEB-3',
    description:
      'Epic or ticket of the same project the new one breaks down (id or key)',
  })
  @IsOptional()
  @IsString()
  parent?: string | null;
}

export class UpdateIssueDto extends IssueFieldsDto {
  @ApiPropertyOptional({ example: 'FEATURE', description: 'A ticket type id' })
  @IsOptional()
  @Matches(SETTING_ID)
  type?: string;

  @ApiPropertyOptional({ maxLength: 255 })
  @IsOptional()
  @IsString()
  @MinLength(1)
  @MaxLength(255)
  title?: string;
}

export class ChangeStatusDto {
  @ApiProperty({
    example: 'IN_REVIEW',
    description:
      "A status id of the project's settings, among the ticket's allowedTransitions",
  })
  @Matches(SETTING_ID)
  status!: string;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description: 'Required by statuses with requiresReason (e.g. QA_FAILED)',
  })
  @IsOptional()
  @IsString()
  @MaxLength(5000)
  reason?: string | null;
}

export class AssignIssueDto {
  @ApiProperty({
    type: String,
    nullable: true,
    description: 'Pireon user id of a project member, or null to unassign',
  })
  @ValidateIf((dto: AssignIssueDto) => dto.assigneeId !== null)
  @IsString()
  assigneeId!: string | null;
}

export class SetIssueReleaseDto {
  @ApiProperty({
    type: String,
    nullable: true,
    format: 'uuid',
    description: 'Planned release, or null to take the ticket out',
  })
  @ValidateIf((dto: SetIssueReleaseDto) => dto.releaseId !== null)
  @IsString()
  releaseId!: string | null;
}

export class SavedFilterCriteriaDto {
  @ApiPropertyOptional({ type: [String], description: 'Ticket type ids' })
  @IsOptional()
  @Matches(SETTING_ID, { each: true })
  types?: string[];

  @ApiPropertyOptional({ type: [String], description: 'Area ids' })
  @IsOptional()
  @Matches(SETTING_ID, { each: true })
  areas?: string[];

  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  @IsOptional()
  @IsEnum(IssuePriority, { each: true })
  priorities?: IssuePriority[];

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description: 'Pireon user id',
  })
  @IsOptional()
  @IsString()
  assigneeId?: string | null;

  @ApiPropertyOptional() @IsOptional() @IsBoolean() unassigned?: boolean;

  @ApiPropertyOptional({ type: String, nullable: true, format: 'uuid' })
  @IsOptional()
  @IsString()
  releaseId?: string | null;

  @ApiPropertyOptional({ type: [String] })
  @IsOptional()
  @ArrayMaxSize(20)
  @IsString({ each: true })
  labels?: string[];

  @ApiPropertyOptional({ type: String, nullable: true, maxLength: 200 })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string | null;
}

export class MyViewCriteriaDto {
  @ApiPropertyOptional({
    type: [String],
    format: 'uuid',
    description: 'Only these of my projects (empty: all)',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(50)
  @IsUUID('all', { each: true })
  projectIds?: string[];
  @ApiPropertyOptional() @IsOptional() @IsBoolean() assignedToMe?: boolean;
  @ApiPropertyOptional({ description: 'Only the tickets I follow' })
  @IsOptional()
  @IsBoolean()
  watching?: boolean;
  @ApiPropertyOptional({
    enum: StatusCategory,
    enumName: 'StatusCategory',
    isArray: true,
  })
  @IsOptional()
  @IsEnum(StatusCategory, { each: true })
  categories?: StatusCategory[];
  @ApiPropertyOptional({
    enum: IssuePriority,
    enumName: 'IssuePriority',
    isArray: true,
  })
  @IsOptional()
  @IsEnum(IssuePriority, { each: true })
  priorities?: IssuePriority[];
  @ApiPropertyOptional({ description: 'Only types with the bug icon' })
  @IsOptional()
  @IsBoolean()
  bugsOnly?: boolean;
  @ApiPropertyOptional({ description: 'Only open tickets past due' })
  @IsOptional()
  @IsBoolean()
  overdue?: boolean;
  @ApiPropertyOptional({ maxLength: 200 })
  @IsOptional()
  @IsString()
  @MaxLength(200)
  search?: string;
}

export class SaveMyViewDto {
  @ApiProperty({
    example: 'Bugs críticos de todos mis proyectos',
    maxLength: 60,
  })
  @IsString()
  @MinLength(1)
  @MaxLength(60)
  name!: string;

  @ApiProperty({ type: MyViewCriteriaDto })
  @ValidateNested()
  @Type(() => MyViewCriteriaDto)
  criteria!: MyViewCriteriaDto;
}

export class SaveFilterDto {
  @ApiProperty({ example: 'Bugs críticos de frontend', maxLength: 60 })
  @IsString()
  @MinLength(1)
  @MaxLength(60)
  name!: string;

  @ApiPropertyOptional({
    default: false,
    description: 'Visible to the whole project (members, not viewers, share)',
  })
  @IsOptional()
  @IsBoolean()
  shared = false;

  @ApiProperty({ type: SavedFilterCriteriaDto })
  @ValidateNested()
  @Type(() => SavedFilterCriteriaDto)
  criteria!: SavedFilterCriteriaDto;
}

export class CreateWebhookDto {
  @ApiProperty({ example: 'https://chat.example.org/hooks/taskstream' })
  @IsUrl({ require_tld: false, require_protocol: true })
  url!: string;

  @ApiProperty({
    type: [String],
    example: ['issue.status_changed', 'release.*'],
    description: 'Event names (GET /api/webhook-events), family.* or *',
  })
  @IsArray()
  @ArrayMaxSize(50)
  @IsString({ each: true })
  events!: string[];
}

export class UpdateWebhookDto extends PartialType(CreateWebhookDto) {
  @ApiPropertyOptional({ description: 'Paused webhooks get nothing' })
  @IsOptional()
  @IsBoolean()
  active?: boolean;
}

export class ImportQueryDto {
  @ApiPropertyOptional({
    type: Boolean,
    default: false,
    description: 'Only tell what would be created',
  })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  dryRun = false;
}

export class BulkUpdateIssuesDto {
  @ApiProperty({ type: [String], format: 'uuid', maxItems: 100 })
  @IsArray()
  @ArrayMaxSize(100)
  @IsUUID('all', { each: true })
  issueIds!: string[];
  @ApiPropertyOptional({ example: 'IN_PROGRESS' })
  @IsOptional()
  @Matches(SETTING_ID)
  status?: string;
  @ApiPropertyOptional({ description: 'Unassign everything' })
  @IsOptional()
  @IsBoolean()
  unassign?: boolean;
  @ApiPropertyOptional({ description: 'Pireon user id of a member' })
  @IsOptional()
  @IsString()
  assigneeId?: string;
  @ApiPropertyOptional({ description: 'Back to the backlog' })
  @IsOptional()
  @IsBoolean()
  noSprint?: boolean;
  @ApiPropertyOptional({ format: 'uuid' })
  @IsOptional()
  @IsUUID()
  sprintId?: string;
  @ApiPropertyOptional({ description: 'Out of their release' })
  @IsOptional()
  @IsBoolean()
  noRelease?: boolean;
  @ApiPropertyOptional({ format: 'uuid' })
  @IsOptional()
  @IsUUID()
  releaseId?: string;
  @ApiPropertyOptional({ enum: IssuePriority, enumName: 'IssuePriority' })
  @IsOptional()
  @IsEnum(IssuePriority)
  priority?: IssuePriority;
  @ApiPropertyOptional({ type: [String] })
  @IsOptional()
  @ArrayMaxSize(10)
  @IsString({ each: true })
  addLabels?: string[];
}

export class RankIssueDto {
  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'WEB-4',
    description:
      'The ticket that ends up right above (id or key; null: the top)',
  })
  @IsOptional()
  @IsString()
  above?: string | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    example: 'WEB-9',
    description:
      'The ticket that ends up right below (id or key; null: the bottom)',
  })
  @IsOptional()
  @IsString()
  below?: string | null;
}

export class SetIssueParentDto {
  @ApiProperty({
    type: String,
    nullable: true,
    example: 'WEB-3',
    description:
      'Epic or ticket of the same project (id or key), or null to take it back to the top',
  })
  @ValidateIf((dto: SetIssueParentDto) => dto.parent !== null)
  @IsString()
  parent!: string | null;
}

export class PresenceBodyDto {
  @ApiPropertyOptional({
    default: false,
    description: 'Editing the ticket or writing a comment',
  })
  @IsOptional()
  @IsBoolean()
  editing = false;
}

export class ChecklistItemBodyDto {
  @ApiProperty({ example: 'Actualizar el changelog', maxLength: 300 })
  @IsString()
  @MinLength(1)
  @MaxLength(300)
  text!: string;
}

export class UpdateChecklistItemDto {
  @ApiPropertyOptional({ maxLength: 300 })
  @IsOptional()
  @IsString()
  @MinLength(1)
  @MaxLength(300)
  text?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsBoolean()
  done?: boolean;
}

export class LinkIssueDto {
  @ApiProperty({ enum: IssueLinkType, enumName: 'IssueLinkType' })
  @IsEnum(IssueLinkType)
  type!: IssueLinkType;

  @ApiProperty({ example: 'API-3', description: 'Other ticket: id or key' })
  @IsString()
  @MinLength(1)
  targetIssue!: string;
}

export class LinkTypeParamDto {
  @ApiProperty({ enum: IssueLinkType, enumName: 'IssueLinkType' })
  @IsIn(Object.values(IssueLinkType))
  type!: IssueLinkType;
}

/** Multipart body of an upload; the file itself travels as `file`. */
export class AttachFileDto {
  @ApiProperty({ type: 'string', format: 'binary', description: 'The file' })
  file?: unknown;

  @ApiPropertyOptional({
    format: 'uuid',
    description: "One of the ticket's comments, to show the file under it",
  })
  @IsOptional()
  @IsUUID()
  commentId?: string;
}

export class CommentBodyDto {
  @ApiProperty({ example: 'Reproducido en Safari 17.', maxLength: 20000 })
  @IsString()
  @MinLength(1)
  @MaxLength(20000)
  body!: string;
}

export class AddCommentDto extends CommentBodyDto {
  @ApiPropertyOptional({
    format: 'uuid',
    description:
      'Comment it answers (one level: answering a reply joins its thread)',
  })
  @IsOptional()
  @IsUUID()
  replyTo?: string;
}

export class ReactToCommentDto {
  @ApiProperty({ enum: REACTIONS, example: '👍' })
  @IsIn(REACTIONS)
  emoji!: string;

  @ApiProperty({ description: 'true adds the reaction, false takes it back' })
  @IsBoolean()
  on!: boolean;
}

// ---- Public proposals -------------------------------------------------------

export class ProposalDto {
  @ApiProperty({
    enum: ['BUG', 'IDEA'],
    description: 'A bug report or an idea',
  })
  @IsIn(['BUG', 'IDEA'])
  kind!: 'BUG' | 'IDEA';

  @ApiProperty({ minLength: 3, maxLength: 150 })
  @IsString()
  @MinLength(3)
  @MaxLength(150)
  title!: string;

  @ApiPropertyOptional({
    maxLength: 5000,
    description: 'What happens, or what they would like (Markdown)',
  })
  @IsOptional()
  @IsString()
  @MaxLength(5000)
  description?: string;

  @ApiPropertyOptional({
    maxLength: 80,
    description:
      'How they sign it; shown in the ticket (no e-mail: it would be public)',
  })
  @IsOptional()
  @IsString()
  @MaxLength(80)
  author?: string;

  @ApiPropertyOptional({
    description: 'Leave empty: a field only bots fill in',
  })
  @IsOptional()
  @IsString()
  website?: string;
}

// ---- Releases ---------------------------------------------------------------

export class CreateReleaseDto {
  @ApiProperty({ example: 'v1.4.0', maxLength: 60 })
  @IsString()
  @MinLength(1)
  @MaxLength(60)
  name!: string;

  @ApiPropertyOptional({ type: String, nullable: true, maxLength: 5000 })
  @IsOptional()
  @IsString()
  @MaxLength(5000)
  description?: string | null;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    format: 'date',
    example: '2026-11-14',
  })
  @IsOptional()
  @IsISO8601()
  targetDate?: string | null;
}

export class UpdateReleaseDto extends PartialType(CreateReleaseDto) {}

export class ReleaseNotesDto {
  @ApiProperty({
    type: String,
    nullable: true,
    maxLength: 20000,
    description: 'Markdown; null removes the notes',
  })
  @ValidateIf((dto: ReleaseNotesDto) => dto.notes !== null)
  @IsString()
  @MaxLength(20000)
  notes!: string | null;
}

const DAY = /^\d{4}-\d{2}-\d{2}$/;

export class CreateSprintDto {
  @ApiProperty({ example: 'Sprint 14', maxLength: 80 })
  @IsString()
  @MinLength(1)
  @MaxLength(80)
  name!: string;

  @ApiPropertyOptional({
    type: String,
    nullable: true,
    maxLength: 500,
    example: 'Pagos con tarjeta en producción',
  })
  @IsOptional()
  @IsString()
  @MaxLength(500)
  goal?: string | null;

  @ApiProperty({ format: 'date', example: '2026-10-12' })
  @Matches(DAY)
  startDate!: string;

  @ApiProperty({
    format: 'date',
    example: '2026-10-23',
    description: 'Last day, included',
  })
  @Matches(DAY)
  endDate!: string;
}

export class UpdateSprintDto extends PartialType(CreateSprintDto) {}

export class CloseSprintDto {
  @ApiPropertyOptional({
    type: String,
    nullable: true,
    format: 'uuid',
    description:
      'Open sprint of the same project that takes the unfinished tickets; null or absent: back to the backlog',
  })
  @IsOptional()
  @IsUUID()
  carryOverTo?: string | null;
}

export class SetIssueSprintDto {
  @ApiProperty({
    type: String,
    nullable: true,
    format: 'uuid',
    description: 'Open sprint of the project, or null for the backlog',
  })
  @ValidateIf((dto: SetIssueSprintDto) => dto.sprintId !== null)
  @IsUUID()
  sprintId!: string | null;
}

export class ArchiveReleaseDto {
  @ApiPropertyOptional({
    type: String,
    nullable: true,
    format: 'uuid',
    description:
      'Open release of the same project that takes its unfinished tickets; null or absent: they leave it',
  })
  @IsOptional()
  @IsUUID()
  moveTo?: string | null;
}

export class PublishReleaseDto {
  @ApiPropertyOptional({
    type: Boolean,
    default: false,
    description: 'Publish even with unfinished tickets',
  })
  @IsOptional()
  @IsBoolean()
  force = false;
}

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

export class MyNotificationsQueryDto {
  @ApiPropertyOptional({
    type: Boolean,
    default: false,
    description: 'Only unread ones',
  })
  @IsOptional()
  @Transform(toBoolean)
  @IsBoolean()
  unreadOnly = false;

  @ApiPropertyOptional({ type: Number, default: 30, minimum: 1, maximum: 100 })
  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(1)
  @Max(100)
  limit = 30;
}

export class MarkNotificationsReadDto {
  @ApiPropertyOptional({
    type: [String],
    description: 'Omit to mark all of them',
  })
  @IsOptional()
  @IsArray()
  @ArrayMaxSize(200)
  @IsString({ each: true })
  ids?: string[];
}

export class NotificationSettingsDto {
  @ApiProperty({ description: 'Copies by e-mail' })
  @IsBoolean()
  email!: boolean;
}

export class PushSubscriptionDto {
  @ApiProperty({
    description: 'The push service URL (PushSubscription.endpoint)',
  })
  @IsUrl({ protocols: ['https'], require_tld: false })
  endpoint!: string;

  @ApiProperty({ description: 'keys.p256dh of the subscription' })
  @IsString()
  @MaxLength(200)
  p256dh!: string;

  @ApiProperty({ description: 'keys.auth of the subscription' })
  @IsString()
  @MaxLength(100)
  auth!: string;
}

export class PushEndpointDto {
  @ApiProperty({ description: 'The endpoint of the device to turn off' })
  @IsString()
  @MaxLength(2000)
  endpoint!: string;
}

// ---- Alerts → bugs ----------------------------------------------------------

export class AlertSettingsDto {
  @ApiPropertyOptional({
    type: String,
    nullable: true,
    description: "Ticket type to open; null: the project's first bug type",
  })
  @IsOptional()
  @IsString()
  typeId?: string | null;

  @ApiPropertyOptional({ enum: IssuePriority, enumName: 'IssuePriority' })
  @IsOptional()
  @IsEnum(IssuePriority)
  priority?: IssuePriority;
}

// ---- Git --------------------------------------------------------------------

export class AddGitRepositoryDto {
  @ApiProperty({
    example: 'api',
    maxLength: 40,
    description: "The project's name for it (api, web, admin…); unique",
  })
  @IsString()
  @MinLength(1)
  @MaxLength(40)
  name!: string;
}

export class ShareDashboardDto {
  @ApiProperty({
    type: [String],
    example: ['flow', 'sprint', 'releases'],
    description: 'Blocks to show: flow, sprint, releases, epics, activity',
  })
  @IsArray()
  @ArrayMaxSize(10)
  @IsString({ each: true })
  blocks!: string[];

  @ApiPropertyOptional({
    description: 'A new secret: the old link stops working',
  })
  @IsOptional()
  @IsBoolean()
  renew?: boolean;
}