import { Body, Controller, Delete, Get, Inject, Param, Patch, Post, Query, Req } from "@nestjs/common";
import type { Request } from "express";
import { TasksService } from "./tasks.service.js";
import { ZodValidate } from "../../common/pipes/zod-validation.pipe.js";
import { requireActor } from "../../common/types.js";
import {
  CreateTaskDto,
  type CreateTaskInput,
  ListTasksQuery,
  type ListTasksQueryInput,
  UpdateTaskDto,
  type UpdateTaskInput
} from "./dto.js";

/**
 * T-159…T-161 — Task routes.
 *
 * Workspace-scoped: `GET/POST /workspaces/:workspaceId/tasks` (the inbox /
 * all list + create) and `GET/PATCH/DELETE /workspaces/:workspaceId/tasks/:id`.
 * These are 3–4 path segments, so they never collide with the workspaces
 * controller's 2-segment `@Get(":id")` (Express params match one segment).
 * A task's PAGE lives at `/pages/:id` (kind=task) — the task routes address
 * the sidecar's task id; the page routes address the page id.
 */
@Controller()
export class TasksController {
  constructor(@Inject(TasksService) private readonly tasks: TasksService) {}

  // ---------- list / create ----------

  @Get("workspaces/:workspaceId/tasks")
  list(
    @Param("workspaceId") workspaceId: string,
    @Query(ZodValidate(ListTasksQuery)) query: ListTasksQueryInput,
    @Req() req: Request
  ) {
    return this.tasks.list(
      workspaceId,
      requireActor(req),
      {
        scope: query.scope,
        status: query.status,
        dueBefore: query.dueBefore,
        dueAfter: query.dueAfter,
        month: query.month,
        overdue: query.overdue,
        cursor: query.cursor,
        limit: String(query.limit)
      }
    );
  }

  @Post("workspaces/:workspaceId/tasks")
  create(
    @Param("workspaceId") workspaceId: string,
    @Body(ZodValidate(CreateTaskDto)) body: CreateTaskInput,
    @Req() req: Request
  ) {
    return this.tasks.create(workspaceId, requireActor(req), body, req);
  }

  // ---------- single task ----------

  @Get("workspaces/:workspaceId/tasks/:id")
  get(@Param("workspaceId") workspaceId: string, @Param("id") id: string, @Req() req: Request) {
    return this.tasks.get(workspaceId, id, requireActor(req));
  }

  @Patch("workspaces/:workspaceId/tasks/:id")
  update(
    @Param("workspaceId") workspaceId: string,
    @Param("id") id: string,
    @Body(ZodValidate(UpdateTaskDto)) body: UpdateTaskInput,
    @Req() req: Request
  ) {
    return this.tasks.update(workspaceId, id, requireActor(req), body, req);
  }

  @Delete("workspaces/:workspaceId/tasks/:id")
  remove(@Param("workspaceId") workspaceId: string, @Param("id") id: string, @Req() req: Request) {
    return this.tasks.remove(workspaceId, id, requireActor(req), req);
  }
}