import type { Request, Response } from "express";
import {
  createProjectFloorDeleteProjectCommand,
  createProjectFloorInsertProjectCommand,
  createProjectFloorSnapshot,
  createProjectFloorUpdateProjectCommand,
} from "../../domain/models/project-location-structure-project-command.model.js";
import {
  createFloorSchema,
  deleteProjectLocationSchema,
  updateFloorSchema,
} from "../../shared/validation/project-structure.schemas.js";
import { projectCommandService } from "../composition/project-command-stores.js";
import { floorRepository } from "../composition/application-repositories.js";
import { respondWithProjectCommandError } from "./project-command.controller.js";

export async function listFloorsByProject(req: Request, res: Response) {
  const { projectId } = req.params;
  if (typeof projectId !== "string") {
    return res.status(400).json({ error: "Invalid projectId" });
  }

  const result = await floorRepository.listByProject(projectId);
  return res.json(result);
}

export async function createFloor(req: Request, res: Response) {
  const { projectId } = req.params;
  if (typeof projectId !== "string") {
    return res.status(400).json({ error: "Invalid projectId" });
  }

  const parsed = createFloorSchema.safeParse(req.body);
  if (!parsed.success) {
    return res.status(400).json({ error: parsed.error.flatten() });
  }

  const existingFloors = await floorRepository.listByProject(projectId);
  const nextSortOrder = existingFloors.length
    ? Math.max(...existingFloors.map((floor) => floor.sortOrder)) + 1
    : 0;
  const floor = createProjectFloorSnapshot(
    projectId,
    parsed.data.name,
    nextSortOrder
  );
  try {
    const result = projectCommandService.executeUser({
      projectId,
      expectedRevision: parsed.data.expectedRevision,
      description: "Geschoss anlegen",
      command: createProjectFloorInsertProjectCommand(floor),
    });
    return res.status(201).json({ ...result, floor });
  } catch (error) {
    return respondWithProjectCommandError(error, res);
  }
}

export async function updateFloor(req: Request, res: Response) {
  const { projectId, floorId } = req.params;
  if (typeof projectId !== "string" || typeof floorId !== "string") {
    return res.status(400).json({ error: "Invalid parameters" });
  }
  const parsed = updateFloorSchema.safeParse(req.body);
  if (!parsed.success) {
    return res.status(400).json({ error: parsed.error.flatten() });
  }
  const current = await floorRepository.findById(projectId, floorId);
  if (!current) {
    return res.status(404).json({ error: "Floor not found" });
  }
  const target = { ...current, name: parsed.data.name };
  try {
    const result = projectCommandService.executeUser({
      projectId,
      expectedRevision: parsed.data.expectedRevision,
      description: "Geschoss bearbeiten",
      command: createProjectFloorUpdateProjectCommand(current, target),
    });
    return res.json({ ...result, floor: target });
  } catch (error) {
    return respondWithProjectCommandError(error, res);
  }
}

export async function deleteFloor(req: Request, res: Response) {
  const { projectId, floorId } = req.params;
  if (typeof projectId !== "string" || typeof floorId !== "string") {
    return res.status(400).json({ error: "Invalid parameters" });
  }
  const parsed = deleteProjectLocationSchema.safeParse(req.body);
  if (!parsed.success) {
    return res.status(400).json({ error: parsed.error.flatten() });
  }
  const current = await floorRepository.findById(projectId, floorId);
  if (!current) {
    return res.status(404).json({ error: "Floor not found" });
  }
  try {
    const result = projectCommandService.executeUser({
      projectId,
      expectedRevision: parsed.data.expectedRevision,
      description: "Geschoss löschen",
      command: createProjectFloorDeleteProjectCommand(current),
    });
    return res.json(result);
  } catch (error) {
    return respondWithProjectCommandError(error, res);
  }
}