using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using PlotLine.Models;
using PlotLine.Services;
using PlotLine.ViewModels;

namespace PlotLine.Controllers;

[Authorize]
[Route("onboarding")]
public sealed class OnboardingController(IOnboardingService onboarding) : Controller
{
    [HttpGet("")]
    public async Task<IActionResult> Index()
    {
        var model = await onboarding.GetWizardAsync();
        return View(model);
    }

    [HttpPost("welcome")]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Welcome()
    {
        await onboarding.MoveToNextStepAsync();
        return RedirectToAction(nameof(Index));
    }

    [HttpPost("writing-journey")]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> WritingJourney(WritingJourneyOnboardingForm form)
    {
        if (!ModelState.IsValid || string.IsNullOrWhiteSpace(form.WritingJourney))
        {
            var model = await onboarding.GetWizardAsync();
            model.CurrentStep = OnboardingSteps.WritingJourney;
            model.StepNumber = 2;
            return View(nameof(Index), model);
        }

        await onboarding.SaveWritingJourneyAsync(form.WritingJourney);
        return RedirectToAction(nameof(Index));
    }

    [HttpPost("writing-software")]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> WritingSoftware(WritingSoftwareOnboardingForm form)
    {
        if (!ModelState.IsValid || string.IsNullOrWhiteSpace(form.WritingSoftware))
        {
            var model = await onboarding.GetWizardAsync();
            model.CurrentStep = OnboardingSteps.WritingSoftware;
            model.StepNumber = 3;
            return View(nameof(Index), model);
        }

        await onboarding.SaveWritingSoftwareAsync(form.WritingSoftware);
        TempData["ArchiveMessage"] = "Setup saved. PlotDirector will use those answers to guide future story setup.";
        return RedirectToAction("Index", "Projects");
    }

    [HttpPost("back")]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Back(string currentStep)
    {
        var targetStep = currentStep == OnboardingSteps.WritingSoftware
            ? OnboardingSteps.WritingJourney
            : OnboardingSteps.Welcome;

        await onboarding.SetCurrentStepAsync(targetStep);

        return RedirectToAction(nameof(Index));
    }
}