import { inject, Injectable } from '@angular/core';
import {
  CommandResult,
  CreateProjectInput,
  MemberInput,
  Project,
  ProjectAnalytics,
  ProjectInsights,
  PortfolioProject,
  Home,
  ProjectSettings,
  ProjectsGateway,
  ProjectStats,
  UpdateProjectInput,
} from '@task-stream/web/tracker/domain';
import { map, Observable } from 'rxjs';
import {
  AddProjectMemberDocument,
  ChangeProjectMemberRoleDocument,
  CreateProjectDocument,
  DeleteProjectDocument,
  ArchiveProjectDocument,
  UnarchiveProjectDocument,
  MyProjectsDocument,
  ProjectAnalyticsDocument,
  ProjectInsightsDocument,
  PortfolioDocument,
  MyHomeDocument,
  ProjectDocument,
  ProjectStatsDocument,
  PublicProjectsDocument,
  RemoveProjectMemberDocument,
  UpdateProjectDocument,
  UpdateProjectSettingsDocument,
} from '../graphql/generated';
import { GraphqlOperations } from './graphql-operations';
import {
  toCommandResult,
  toIssueSummary,
  toProject,
  toSettingsInput,
  toStats,
} from './mappers';

@Injectable()
export class GraphqlProjectsGateway extends ProjectsGateway {
  private readonly gql = inject(GraphqlOperations);

  myProjects(): Observable<Project[]> {
    return this.gql
      .query(MyProjectsDocument)
      .pipe(map((d) => d.myProjects.map(toProject)));
  }

  publicProjects(): Observable<Project[]> {
    return this.gql
      .query(PublicProjectsDocument)
      .pipe(map((d) => d.publicProjects.map(toProject)));
  }

  project(idOrKey: string): Observable<Project> {
    return this.gql
      .query(ProjectDocument, { idOrKey })
      .pipe(map((d) => toProject(d.project)));
  }

  stats(projectId: string): Observable<ProjectStats> {
    return this.gql
      .query(ProjectStatsDocument, { idOrKey: projectId })
      .pipe(map((d) => toStats(d.project.stats)));
  }

  myHome(): Observable<Home> {
    return this.gql
      .query(MyHomeDocument, {})
      .pipe(map((d) => d.myHome as Home));
  }

  portfolio(): Observable<PortfolioProject[]> {
    return this.gql.query(PortfolioDocument, {}).pipe(
      map((d) =>
        d.portfolio.map((p) => ({
          ...(p as unknown as PortfolioProject),
          epics: p.epics.map((e) => ({
            issue: toIssueSummary(e.issue),
            progress: { ...e.progress },
            links: [],
          })),
        })),
      ),
    );
  }

  insights(
    projectId: string,
    since: string | null,
  ): Observable<ProjectInsights> {
    return this.gql
      .query(ProjectInsightsDocument, { idOrKey: projectId, since })
      .pipe(map((d) => d.project.insights as ProjectInsights));
  }

  analytics(projectId: string, days: number): Observable<ProjectAnalytics> {
    return this.gql
      .query(ProjectAnalyticsDocument, { idOrKey: projectId, days })
      .pipe(map((d) => d.project.analytics));
  }

  updateSettings(
    projectId: string,
    settings: ProjectSettings,
  ): Observable<CommandResult> {
    return this.gql
      .mutate(UpdateProjectSettingsDocument, {
        projectId,
        settings: toSettingsInput(settings),
      })
      .pipe(map((d) => toCommandResult(d.updateProjectSettings)));
  }

  create(input: CreateProjectInput): Observable<CommandResult> {
    return this.gql
      .mutate(CreateProjectDocument, { input })
      .pipe(map((d) => toCommandResult(d.createProject)));
  }

  update(input: UpdateProjectInput): Observable<CommandResult> {
    return this.gql
      .mutate(UpdateProjectDocument, { input })
      .pipe(map((d) => toCommandResult(d.updateProject)));
  }

  setArchived(projectId: string, archived: boolean): Observable<CommandResult> {
    return archived
      ? this.gql
          .mutate(ArchiveProjectDocument, { projectId })
          .pipe(map((d) => toCommandResult(d.archiveProject)))
      : this.gql
          .mutate(UnarchiveProjectDocument, { projectId })
          .pipe(map((d) => toCommandResult(d.unarchiveProject)));
  }

  delete(projectId: string, confirmKey: string): Observable<CommandResult> {
    return this.gql
      .mutate(DeleteProjectDocument, { projectId, confirmKey })
      .pipe(map((d) => toCommandResult(d.deleteProject)));
  }

  addMember(input: MemberInput): Observable<CommandResult> {
    return this.gql
      .mutate(AddProjectMemberDocument, { input: input as never })
      .pipe(map((d) => toCommandResult(d.addProjectMember)));
  }

  changeMemberRole(input: MemberInput): Observable<CommandResult> {
    return this.gql
      .mutate(ChangeProjectMemberRoleDocument, { input: input as never })
      .pipe(map((d) => toCommandResult(d.changeProjectMemberRole)));
  }

  removeMember(projectId: string, userId: string): Observable<CommandResult> {
    return this.gql
      .mutate(RemoveProjectMemberDocument, { projectId, userId })
      .pipe(map((d) => toCommandResult(d.removeProjectMember)));
  }
}