using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Portfolio.Application.Services.PokemonService;
using Portfolio.Domain.Features.Pokemon;

namespace Portfolio.WebUI.Server.Components.Component.Pokemon_Components
{
    public partial class PokemonForm
    {
        // To Add or Edit Pokemon
        [Parameter]
        public string formUse { get; set; }

        
        [Parameter]
        public EventCallback<Pokemon> OnPokemonReady { get; set; }
        [Parameter]
        public EventCallback RemoveForm { get; set; }

        // When Adding
        [Parameter]
        public bool mostRecentForm { get; set; }
        private Pokemon NewPokemon = new Pokemon
        {
            PokemonId = 0, // Or any default ID logic
            PokemonName = string.Empty, // Required fields cannot be null
            SleepType = string.Empty,
            Speciality = string.Empty,
            IsVariation = false
        };

        // When Editing
        [Parameter]
        public Pokemon? PokemonToEdit { get; set; }
        private int PokemonToEditId { get; set; }


        // General Form
        protected static readonly string[] PokemonTypes = new[]
        {
        "Grass","Fire","Water","Normal","Flying","Bug","Poison","Electric","Ground","Rock","Ice",
        "Steel","Fighting","Psychic","Dark","Fairy","Ghost","Dragon"
        };
        protected static readonly string[] SleepTypes = new[] { "Dozing", "Snoozing", "Slumbering" };
        protected static readonly string[] Specialities = new[] { "Berries", "Ingredients", "Skills", "All" };


        private bool HideLabel { get; set; }
        private bool showErrors { get; set; } = false;


        protected override async Task OnInitializedAsync()
        {
            if (formUse == "EDIT")
            {
                if (PokemonToEdit.IsVariation == true)
                {
                    HideLabel = false;
                }
                PokemonToEditId = PokemonToEdit.Id;
            }
            else
            {
                HideLabel = true;
            }
        }


        private void Toggle()
        {
            HideLabel = !HideLabel;
        } 


        // CSS-function to get proper styling for form elements
        private string GetRoundingClass()
        {
            if (!HideLabel)
            {
                return "rounded-start";
            }
            return "rounded-start rounded-end";
        }

        // Minimal "complete" check (no data annotations needed)
        private bool IsComplete =>
            NewPokemon.PokemonId > 0 &&
            !string.IsNullOrWhiteSpace(NewPokemon.PokemonName) &&
            !string.IsNullOrWhiteSpace(NewPokemon.PokemonType) &&
            !string.IsNullOrWhiteSpace(NewPokemon.SleepType) &&
            !string.IsNullOrWhiteSpace(NewPokemon.Speciality) &&
            (!NewPokemon.IsVariation || !string.IsNullOrWhiteSpace(NewPokemon.VariationName));

        private IEnumerable<string> MissingFields()
        {
            if (NewPokemon.PokemonId <= 0) yield return "Pokédex #";
            if (string.IsNullOrWhiteSpace(NewPokemon.PokemonName)) yield return "Name";
            if (string.IsNullOrWhiteSpace(NewPokemon.PokemonType)) yield return "Type";
            if (string.IsNullOrWhiteSpace(NewPokemon.SleepType)) yield return "Sleep Type";
            if (string.IsNullOrWhiteSpace(NewPokemon.Speciality)) yield return "Specialty";
            if (NewPokemon.IsVariation && string.IsNullOrWhiteSpace(NewPokemon.VariationName)) yield return "Variation Name";
        }

        private async Task HandleRemove()
        {
            await RemoveForm.InvokeAsync();
        }

        private async Task SendPokemon()
        {
            if(formUse == "ADD")
            {
                if (!IsComplete)
                {
                    showErrors = true;
                    StateHasChanged();
                    return;
                }

                // Optionally send a copy to avoid later mutation by the child
                var copy = new Pokemon
                {
                    PokemonId = NewPokemon.PokemonId,
                    PokemonName = NewPokemon.PokemonName,
                    PokemonType = NewPokemon.PokemonType,
                    SleepType = NewPokemon.SleepType,
                    Speciality = NewPokemon.Speciality,
                    IsVariation = NewPokemon.IsVariation,
                    VariationName = NewPokemon.VariationName,
                    PokemonImageUrl = NewPokemon.PokemonImageUrl,
                    PokemonShinyImageUrl = NewPokemon.PokemonShinyImageUrl,
                    FlavorText = NewPokemon.FlavorText
                };

                await OnPokemonReady.InvokeAsync(copy);
            }
            else
            {
                // Optionally send a copy to avoid later mutation by the child
                var edit = new Pokemon
                {
                    Id = PokemonToEditId,
                    PokemonId = PokemonToEdit.PokemonId,
                    PokemonName = PokemonToEdit.PokemonName,
                    PokemonType = PokemonToEdit.PokemonType,
                    SleepType = PokemonToEdit.SleepType,
                    Speciality = PokemonToEdit.Speciality,
                    IsVariation = PokemonToEdit.IsVariation,
                    VariationName = PokemonToEdit.VariationName,
                    PokemonImageUrl = PokemonToEdit.PokemonImageUrl,
                    PokemonShinyImageUrl = PokemonToEdit.PokemonShinyImageUrl,
                    FlavorText = PokemonToEdit.FlavorText
                };

                await OnPokemonReady.InvokeAsync(edit);
                Console.WriteLine(edit);
            }

        }
    }
}