import { normalizeNullableStringId, normalizeStringId } from './shared';

type ProjectStatusCode = Api.Project.ProjectStatusCode;
type ProjectStatusActionCode = Exclude<Api.Project.ProjectStatusActionCode, 'auto_start'>;

type StringIdResponse = string | number;

export type ProjectLocalDateValue = string | number[] | null;

export type LifecycleActionResponse<ActionCode extends string> = Partial<Api.Project.LifecycleAction<ActionCode>> & {
  actionCode: ActionCode;
};

export type ProjectExecutionResponse = Omit<
  Api.Project.ProjectExecution,
  | 'id'
  | 'projectId'
  | 'projectRequirementId'
  | 'ownerId'
  | 'availableActions'
  | 'plannedStartDate'
  | 'plannedEndDate'
  | 'actualStartDate'
  | 'actualEndDate'
  | 'progressRate'
> & {
  id: StringIdResponse;
  projectId: StringIdResponse;
  projectRequirementId?: StringIdResponse | null;
  ownerId: StringIdResponse;
  availableActions?: LifecycleActionResponse<Api.Project.ProjectExecutionActionCode>[] | null;
  plannedStartDate?: ProjectLocalDateValue;
  plannedEndDate?: ProjectLocalDateValue;
  actualStartDate?: ProjectLocalDateValue;
  actualEndDate?: ProjectLocalDateValue;
  progressRate?: number | null;
};

export type ExecutionMemberResponse = Omit<Api.Project.ExecutionMember, 'id' | 'executionId' | 'userId'> & {
  id: StringIdResponse;
  executionId: StringIdResponse;
  userId: StringIdResponse;
};

export type ExecutionMemberLogResponse = Omit<
  Api.Project.ExecutionMemberLog,
  'id' | 'executionId' | 'userId' | 'operatorUserId'
> & {
  id: StringIdResponse;
  executionId: StringIdResponse;
  userId: StringIdResponse;
  operatorUserId: StringIdResponse;
};

export type ProjectTaskResponse = Omit<
  Api.Project.ProjectTask,
  | 'id'
  | 'projectId'
  | 'executionId'
  | 'parentTaskId'
  | 'ownerId'
  | 'availableActions'
  | 'plannedStartDate'
  | 'plannedEndDate'
  | 'actualStartDate'
  | 'actualEndDate'
  | 'progressRate'
> & {
  id: StringIdResponse;
  projectId: StringIdResponse;
  executionId: StringIdResponse;
  parentTaskId?: StringIdResponse | null;
  ownerId: StringIdResponse;
  availableActions?: LifecycleActionResponse<Api.Project.ProjectTaskActionCode>[] | null;
  plannedStartDate?: ProjectLocalDateValue;
  plannedEndDate?: ProjectLocalDateValue;
  actualStartDate?: ProjectLocalDateValue;
  actualEndDate?: ProjectLocalDateValue;
  progressRate?: number | null;
};

export interface ProjectMemberResponse {
  id: string | number;
  userId: string | number;
  userNickname: string;
  roleId: string | number;
  roleName: string;
  roleCode: string;
  managerFlag: boolean;
  status: 0 | 1;
  joinedTime: string;
  leftTime?: string | null;
  remark?: string | null;
}

const projectLifecycleActionNameMap: Record<ProjectStatusActionCode, string> = {
  pause: '暂停项目',
  resume: '恢复项目',
  complete: '完成项目',
  cancel: '取消项目',
  reopen: '重新开启',
  archive: '归档项目'
};

const projectLifecycleActionReasonRequiredMap: Record<ProjectStatusActionCode, boolean> = {
  pause: true,
  resume: false,
  complete: true,
  cancel: true,
  reopen: true,
  archive: false
};

const projectLifecycleActionMap: Record<ProjectStatusCode, ProjectStatusActionCode[]> = {
  pending: ['cancel'],
  active: ['pause', 'complete', 'cancel'],
  paused: ['resume', 'cancel'],
  completed: ['reopen', 'archive'],
  cancelled: [],
  archived: []
};

export function getProjectLifecycleActions(statusCode: ProjectStatusCode): Api.Project.ProjectLifecycleAction[] {
  return projectLifecycleActionMap[statusCode].map(actionCode => ({
    actionCode,
    actionName: projectLifecycleActionNameMap[actionCode],
    needReason: projectLifecycleActionReasonRequiredMap[actionCode]
  }));
}

export function normalizeProjectLocalDate(value: ProjectLocalDateValue | undefined) {
  if (value === null || value === undefined || value === '') {
    return null;
  }

  if (Array.isArray(value)) {
    const [year, month, day] = value;

    if (!year || !month || !day) {
      return null;
    }

    return [year, month, day].map(item => String(item).padStart(2, '0')).join('-');
  }

  return String(value);
}

export function normalizeLifecycleActions<ActionCode extends string>(
  actions: LifecycleActionResponse<ActionCode>[] | null | undefined
): Api.Project.LifecycleAction<ActionCode>[] {
  return (actions ?? []).map(action => ({
    actionCode: action.actionCode,
    actionName: action.actionName ?? '',
    needReason: Boolean(action.needReason)
  }));
}

export function normalizeProjectMember(response: ProjectMemberResponse): Api.Project.ProjectMember {
  return {
    id: normalizeStringId(response.id),
    userId: normalizeStringId(response.userId),
    userNickname: response.userNickname || '',
    roleId: normalizeStringId(response.roleId),
    roleName: response.roleName || '',
    roleCode: response.roleCode || '',
    managerFlag: Boolean(response.managerFlag),
    status: response.status,
    joinedTime: response.joinedTime,
    leftTime: response.leftTime ?? null,
    remark: response.remark ?? null
  };
}

export function normalizeProjectExecution(response: ProjectExecutionResponse): Api.Project.ProjectExecution {
  return {
    ...response,
    id: normalizeStringId(response.id),
    projectId: normalizeStringId(response.projectId),
    projectRequirementId: normalizeNullableStringId(response.projectRequirementId),
    ownerId: normalizeStringId(response.ownerId),
    ownerNickname: response.ownerNickname ?? null,
    statusName: response.statusName ?? null,
    terminal: Boolean(response.terminal),
    allowEdit: Boolean(response.allowEdit),
    availableActions: normalizeLifecycleActions(response.availableActions),
    plannedStartDate: normalizeProjectLocalDate(response.plannedStartDate),
    plannedEndDate: normalizeProjectLocalDate(response.plannedEndDate),
    actualStartDate: normalizeProjectLocalDate(response.actualStartDate),
    actualEndDate: normalizeProjectLocalDate(response.actualEndDate),
    progressRate: typeof response.progressRate === 'number' ? response.progressRate : 0,
    executionDesc: response.executionDesc ?? null,
    lastStatusReason: response.lastStatusReason ?? null
  };
}

export function normalizeExecutionMember(response: ExecutionMemberResponse): Api.Project.ExecutionMember {
  return {
    ...response,
    id: normalizeStringId(response.id),
    executionId: normalizeStringId(response.executionId),
    userId: normalizeStringId(response.userId),
    userNickname: response.userNickname ?? null,
    joinedAt: response.joinedAt ?? null,
    removedAt: response.removedAt ?? null,
    removedReason: response.removedReason ?? null
  };
}

export function normalizeExecutionMemberLog(response: ExecutionMemberLogResponse): Api.Project.ExecutionMemberLog {
  return {
    ...response,
    id: normalizeStringId(response.id),
    executionId: normalizeStringId(response.executionId),
    userId: normalizeStringId(response.userId),
    operatorUserId: normalizeStringId(response.operatorUserId),
    userNicknameSnapshot: response.userNicknameSnapshot ?? null,
    operatorNicknameSnapshot: response.operatorNicknameSnapshot ?? null,
    reason: response.reason ?? null
  };
}

export function normalizeProjectTask(response: ProjectTaskResponse): Api.Project.ProjectTask {
  return {
    ...response,
    id: normalizeStringId(response.id),
    projectId: normalizeStringId(response.projectId),
    executionId: normalizeStringId(response.executionId),
    parentTaskId: normalizeNullableStringId(response.parentTaskId),
    ownerId: normalizeStringId(response.ownerId),
    ownerNickname: response.ownerNickname ?? null,
    statusName: response.statusName ?? null,
    terminal: Boolean(response.terminal),
    allowEdit: Boolean(response.allowEdit),
    availableActions: normalizeLifecycleActions(response.availableActions),
    progressRate: typeof response.progressRate === 'number' ? response.progressRate : 0,
    plannedStartDate: normalizeProjectLocalDate(response.plannedStartDate),
    plannedEndDate: normalizeProjectLocalDate(response.plannedEndDate),
    actualStartDate: normalizeProjectLocalDate(response.actualStartDate),
    actualEndDate: normalizeProjectLocalDate(response.actualEndDate),
    taskDesc: response.taskDesc ?? null,
    lastStatusReason: response.lastStatusReason ?? null
  };
}