import { Body, Controller, Get, Logger, Param, Post, Put } from '@nestjs/common';
import { SetupStateService } from './setup-state.service';
import type { SetupStepName } from './setup-state.defaults';

// Public endpoint family for the onboarding wizard. Mounted under /api/config
// alongside theme/widget. No auth guard yet — matches existing convention with
// ThemeController. To be tightened when the staff portal admin auth is in place.
//
//   GET  /api/config/setup-state                     full state + isWizardRequired
//   PUT  /api/config/setup-state/steps/:step         { completed: bool, completedBy?: string }
//   POST /api/config/setup-state/dismiss             dismiss the wizard for this workspace
//   POST /api/config/setup-state/reset               reset all steps to incomplete (admin)
@Controller('api/config')
export class SetupStateController {
    private readonly logger = new Logger(SetupStateController.name);

    constructor(private readonly setupState: SetupStateService) {}

    @Get('setup-state')
    async getState() {
        // Use the checked variant so the platform workspace probe runs
        // before we serialize. Catches workspace changes (DB resets,
        // re-onboards) on the very first frontend GET.
        const state = await this.setupState.getStateChecked();
        return {
            ...state,
            wizardRequired: this.setupState.isWizardRequired(),
        };
    }

    @Put('setup-state/steps/:step')
    updateStep(
        @Param('step') step: SetupStepName,
        @Body() body: { completed: boolean; completedBy?: string },
    ) {
        const updated = body.completed
            ? this.setupState.markStepCompleted(step, body.completedBy ?? null)
            : this.setupState.markStepIncomplete(step);
        // Mirror GET shape — include `wizardRequired` so the frontend
        // doesn't see a state object missing the field and re-render
        // into an inconsistent shape.
        return { ...updated, wizardRequired: this.setupState.isWizardRequired() };
    }

    @Post('setup-state/dismiss')
    dismiss() {
        const updated = this.setupState.dismissWizard();
        return { ...updated, wizardRequired: this.setupState.isWizardRequired() };
    }

    @Post('setup-state/reset')
    reset() {
        const updated = this.setupState.resetState();
        return { ...updated, wizardRequired: this.setupState.isWizardRequired() };
    }

    // UI-level flags the frontend reads at app boot to tailor which admin
    // surfaces are available. Driven by sidecar env vars so each workspace
    // can be configured independently without touching the frontend build.
    //
    // setupManaged=true means "the product team handles setup for this
    // workspace" — hide the Settings nav, routes, and the resume-setup
    // banner. The wizard + setup-state APIs stay functional for ops use
    // (a support engineer can still PUT /steps/:step or hit the routes
    // directly); only the end-user admin UI is hidden.
    @Get('ui-flags')
    uiFlags() {
        return {
            setupManaged: process.env.HELIX_SETUP_MANAGED === 'true',
        };
    }
}