using rjw.Modules.Interactions.Contexts;
using rjw.Modules.Interactions.Enums;
using rjw.Modules.Interactions.Objects;
using rjw.Modules.Interactions.Rules.PartKindUsageRules;
using rjw.Modules.Shared;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Verse;

namespace rjwquirks.Modules.Interactions
{
    public class QuirksPartKindUsageRule : IPartPreferenceRule
    {
        public IEnumerable<Weighted<LewdablePartKind>> ModifiersForDominant(InteractionContext context)
        {
            return Enumerable.Concat(
                ModifierFromPawnQuirks(context.Internals.Dominant, context.Internals.Submissive),
                ModifierFromPartnerQuirks(context.Internals.Submissive, context.Internals.Dominant)
                );

        }

        public IEnumerable<Weighted<LewdablePartKind>> ModifiersForSubmissive(InteractionContext context)
        {
            return Enumerable.Concat(
                ModifierFromPawnQuirks(context.Internals.Submissive, context.Internals.Dominant),
                ModifierFromPartnerQuirks(context.Internals.Dominant, context.Internals.Submissive)
                );
        }

        /// <summary>
        /// What pawn wants to use because of quirks
        /// </summary>
        private IEnumerable<Weighted<LewdablePartKind>> ModifierFromPawnQuirks(InteractionPawn quirkOwner, InteractionPawn partner)
        {
            foreach (var comp in GetQuirkComps(quirkOwner.Pawn))
            {
                foreach (var rule in comp.GetModifiersForPawn(quirkOwner, partner))
                {
                    yield return rule;
                }
            }
        }

        /// <summary>
        /// What pawn want from partner because of pawn's quirks
        /// </summary>
        private IEnumerable<Weighted<LewdablePartKind>> ModifierFromPartnerQuirks(InteractionPawn quirkOwner, InteractionPawn partner)
        {
            foreach (var comp in GetQuirkComps(quirkOwner.Pawn))
            {
                foreach (var rule in comp.GetModifiersForPartner(quirkOwner, partner))
                {
                    yield return rule;
                }
            }
        }

        private IEnumerable<Quirks.Comps.PartKindUsageRules> GetQuirkComps(Pawn pawn)
        {
            foreach (var comp in pawn.GetQuirks().AllQuirks.SelectMany(quirk => quirk.def.GetComps<Quirks.Comps.PartKindUsageRules>()))
            {
                yield return comp;
            }
        }
    }

}