import {
  Body,
  Controller,
  Delete,
  Get,
  HttpCode,
  Param,
  ParseUUIDPipe,
  Patch,
  Post,
  Query,
} from "@nestjs/common";
import { ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
import { ScenarioService } from "./scenario.service";
import { CreateScenarioDto } from "./dto/create-scenario.dto";
import { UpdateScenarioDto } from "./dto/update-scenario.dto";
import { CreateScenarioStepDto } from "./dto/create-scenario-step.dto";
import { UpdateScenarioStepDto } from "./dto/update-scenario-step.dto";
import { AddScenarioCredentialDto } from "./dto/add-scenario-credential.dto";
import { PaginationQueryDto } from "./dto/pagination-query.dto";
import { ScenarioOrderBy } from "./scenario.service";
import { RunsQueryDto } from "./dto/runs-query.dto";
import { ScenarioExportDto } from "./dto/scenario-export.dto";

@ApiTags("scenarios")
@Controller("scenarios")
export class ScenarioController {
  constructor(private readonly scenarioService: ScenarioService) {}

  // ── Scenarios ─────────────────────────────────────────────────────────────

  @Post()
  @ApiOperation({ summary: "Create a scenario" })
  @ApiResponse({ status: 201, description: "Scenario created" })
  create(@Body() dto: CreateScenarioDto) {
    return this.scenarioService.create(dto);
  }

  @Post("import")
  @ApiOperation({ summary: "Import a scenario from an export payload" })
  @ApiResponse({ status: 201, description: "Scenario imported" })
  importScenario(@Body() dto: ScenarioExportDto) {
    return this.scenarioService.importScenario(dto);
  }

  @Get()
  @ApiOperation({ summary: "List all scenarios (paginated)" })
  @ApiResponse({ status: 200 })
  findAll(@Query() query: PaginationQueryDto<ScenarioOrderBy>) {
    return this.scenarioService.findAll(query);
  }

  @Get("runs")
  @ApiOperation({ summary: "List runs across all scenarios (paginated, filterable by status)" })
  @ApiResponse({ status: 200 })
  findAllRuns(@Query() query: RunsQueryDto) {
    return this.scenarioService.findAllRuns(query);
  }

  @Get(":id")
  @ApiOperation({ summary: "Get a scenario with its steps" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  findOne(@Param("id", ParseUUIDPipe) id: string) {
    return this.scenarioService.findOne(id);
  }

  @Patch(":id")
  @ApiOperation({ summary: "Update a scenario" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  update(
    @Param("id", ParseUUIDPipe) id: string,
    @Body() dto: UpdateScenarioDto,
  ) {
    return this.scenarioService.update(id, dto);
  }

  @Delete(":id")
  @HttpCode(204)
  @ApiOperation({ summary: "Delete a scenario and all its steps" })
  @ApiResponse({ status: 204 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  remove(@Param("id", ParseUUIDPipe) id: string) {
    return this.scenarioService.remove(id);
  }

  @Get(":id/export")
  @ApiOperation({ summary: "Export a scenario as a portable JSON payload" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  exportScenario(@Param("id", ParseUUIDPipe) id: string) {
    return this.scenarioService.exportScenario(id);
  }

  // ── Steps ─────────────────────────────────────────────────────────────────

  @Post(":id/steps")
  @ApiOperation({ summary: "Add a step to a scenario" })
  @ApiResponse({ status: 201, description: "Step created" })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  createStep(
    @Param("id", ParseUUIDPipe) id: string,
    @Body() dto: CreateScenarioStepDto,
  ) {
    return this.scenarioService.createStep(id, dto);
  }

  @Get(":id/steps/:stepId")
  @ApiOperation({ summary: "Get a single step" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario or step not found" })
  findStep(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("stepId", ParseUUIDPipe) stepId: string,
  ) {
    return this.scenarioService.findStep(id, stepId);
  }

  @Patch(":id/steps/:stepId")
  @ApiOperation({ summary: "Update a step" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario or step not found" })
  updateStep(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("stepId", ParseUUIDPipe) stepId: string,
    @Body() dto: UpdateScenarioStepDto,
  ) {
    return this.scenarioService.updateStep(id, stepId, dto);
  }

  @Delete(":id/steps/:stepId")
  @HttpCode(204)
  @ApiOperation({ summary: "Delete a step" })
  @ApiResponse({ status: 204 })
  @ApiResponse({ status: 404, description: "Scenario or step not found" })
  removeStep(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("stepId", ParseUUIDPipe) stepId: string,
  ) {
    return this.scenarioService.removeStep(id, stepId);
  }

  // ── Credentials ───────────────────────────────────────────────────────────

  @Get(":id/credentials")
  @ApiOperation({ summary: "List credentials assigned to a scenario" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  findScenarioCredentials(@Param("id", ParseUUIDPipe) id: string) {
    return this.scenarioService.findScenarioCredentials(id);
  }

  @Post(":id/credentials")
  @ApiOperation({ summary: "Add a credential to a scenario with an alias" })
  @ApiResponse({ status: 201, description: "Credential added" })
  @ApiResponse({ status: 404, description: "Scenario or credential not found" })
  @ApiResponse({ status: 409, description: "Alias already used in this scenario" })
  addScenarioCredential(
    @Param("id", ParseUUIDPipe) id: string,
    @Body() dto: AddScenarioCredentialDto,
  ) {
    return this.scenarioService.addScenarioCredential(id, dto);
  }

  @Delete(":id/credentials/:scCredId")
  @HttpCode(204)
  @ApiOperation({ summary: "Remove a credential from a scenario" })
  @ApiResponse({ status: 204 })
  @ApiResponse({ status: 404, description: "Scenario or credential assignment not found" })
  removeScenarioCredential(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("scCredId", ParseUUIDPipe) scCredId: string,
  ) {
    return this.scenarioService.removeScenarioCredential(id, scCredId);
  }

  // ── Runs ──────────────────────────────────────────────────────────────────

  @Get(":id/runs")
  @ApiOperation({
    summary: "List runs for a scenario (paginated, filterable by status)",
  })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  findRuns(
    @Param("id", ParseUUIDPipe) id: string,
    @Query() query: RunsQueryDto,
  ) {
    return this.scenarioService.findRuns(id, query);
  }

  @Post(":id/run")
  @ApiOperation({ summary: "Create a new run for a scenario" })
  @ApiResponse({ status: 201, description: "Run created with step runs" })
  @ApiResponse({ status: 404, description: "Scenario not found" })
  createRun(@Param("id", ParseUUIDPipe) id: string) {
    return this.scenarioService.createRun(id);
  }

  @Get(":id/run/:runId")
  @ApiOperation({ summary: "Get a specific run with step runs and logs" })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario or run not found" })
  findRun(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("runId", ParseUUIDPipe) runId: string,
  ) {
    return this.scenarioService.findRun(id, runId);
  }

  @Post(":id/run/:runId/wait")
  @HttpCode(200)
  @ApiOperation({
    summary:
      "Block until the run reaches pass or fail (max 5 min), then return run with logs",
  })
  @ApiResponse({ status: 200 })
  @ApiResponse({ status: 404, description: "Scenario or run not found" })
  waitForRun(
    @Param("id", ParseUUIDPipe) id: string,
    @Param("runId", ParseUUIDPipe) runId: string,
  ) {
    return this.scenarioService.waitForRun(id, runId);
  }
}