package com.tiedup.remake.dialogue;

import com.tiedup.remake.entities.EntityDamsel;
import com.tiedup.remake.personality.NpcCommand;
import com.tiedup.remake.personality.NpcNeeds;
import com.tiedup.remake.personality.PersonalityState;
import net.minecraft.world.entity.player.Player;
import org.jetbrains.annotations.Nullable;

/**
 * System for selecting proactive dialogues based on NPC state.
 * Makes NPCs feel alive by having them speak about their needs, mood, and environment.
 *
 * Personality System Living NPCs
 */
public class DialogueTriggerSystem {

    /**
     * Select a proactive dialogue ID based on NPC's current state.
     * Returns null if no dialogue should be triggered.
     *
     * @param npc The damsel entity
     * @return Dialogue ID or null
     */
    @Nullable
    public static String selectProactiveDialogue(EntityDamsel npc) {
        PersonalityState state = npc.getPersonalityState();
        if (state == null) {
            return null;
        }

        NpcNeeds needs = state.getNeeds();

        // Priority 1: Critical needs (starving)
        if (needs.isStarving()) {
            return "needs.starving";
        }

        // Priority 2: Very low mood
        if (state.getMood() < 20) {
            return "mood.miserable";
        }

        // Priority 4: Non-critical needs
        if (needs.isHungry()) {
            return "needs.hungry";
        }
        if (needs.isTired()) {
            return "needs.dignity_low";
        }

        // Priority 5: Low mood
        if (state.getMood() < 40) {
            return "mood.sad";
        }

        // Priority 6: Job-specific idle (if doing a job)
        if (state.getActiveCommand().type == NpcCommand.CommandType.JOB) {
            return selectJobIdleDialogue(npc, state);
        }

        // Priority 7: Generic idle
        return selectIdleDialogue(npc, state);
    }

    /**
     * Select dialogue for approaching player.
     * No fear/relationship system — returns generic approach dialogue.
     *
     * @param npc The damsel entity
     * @param player The approaching player
     * @return Dialogue ID
     */
    public static String selectApproachDialogue(
        EntityDamsel npc,
        Player player
    ) {
        return "reaction.approach.stranger";
    }

    /**
     * Select job-specific idle dialogue.
     */
    @Nullable
    private static String selectJobIdleDialogue(
        EntityDamsel npc,
        PersonalityState state
    ) {
        NpcCommand job = state.getActiveCommand();
        if (job.type != NpcCommand.CommandType.JOB) {
            return null;
        }

        // Check mood first
        if (state.getMood() < 30) {
            return "mood.working_unhappy";
        }

        // Job-specific idle
        return "jobs.idle." + job.name().toLowerCase();
    }

    /**
     * Select generic idle dialogue.
     */
    @Nullable
    private static String selectIdleDialogue(
        EntityDamsel npc,
        PersonalityState state
    ) {
        // High mood = positive idle
        if (state.getMood() > 70) {
            return "idle.content";
        }

        // Normal idle
        return "idle.neutral";
    }

    /**
     * Select environmental dialogue based on weather/time.
     *
     * @param npc The damsel entity
     * @return Dialogue ID or null
     */
    @Nullable
    public static String selectEnvironmentDialogue(EntityDamsel npc) {
        // Check if outdoors (can see sky)
        if (!npc.level().canSeeSky(npc.blockPosition())) {
            return null;
        }

        // Thunder takes priority
        if (npc.level().isThundering()) {
            return "environment.thunder";
        }

        // Rain
        if (
            npc.level().isRaining() &&
            npc.level().isRainingAt(npc.blockPosition())
        ) {
            return "environment.rain";
        }

        // Night (only if dark enough)
        long dayTime = npc.level().getDayTime() % 24000;
        if (dayTime >= 13000 && dayTime <= 23000) {
            return "environment.night";
        }

        return null;
    }
}