#include "creature.h"
#include "json.hpp"
#include "dice.h"
#include "rules.h"
#include "feature.h"
#include "weapon.h"
#include "armor.h"
#include <algorithm>
#include <iostream>
#include <sstream>
#include <iomanip>

typedef nlohmann::json json;
using namespace std;

namespace creature {
    Creature::Creature(const json& data)
        : inventory(json2ptrvec<entry::Item>(data["inventory"])), stats(data["stats"]), skills(data["skills"]), creatureName(data["name"]), size(data["size"]), type(data["type"]), alignment(data["alignment"]), hdCount(data["hit_die_count"]), hdSides(data["hit_die_sides"]), speed(data["speed"]), saves(data["saves"]), langs(data["langs"]), cr(data["cr"]), proficiency(data["prof"]), dmgImmunities(json2vec<dmgType>(data["d_immunities"])), dmgResistances(json2vec<dmgType>(data["d_resistances"])), dmgVulnerabilities(json2vec<dmgType>(data["d_vulnerabilities"])), condImmunities(json2vec<dmgType>(data["c_immunities"])), features(json2ptrvec<entry::Feature>(data["features"]))
    {
        // Initialize names and hp
        if(((map<string, json>) data).contains("givenName")) {
            givenName = data["givenName"];
            hpMax = data["hpMax"];
            hp = data["hp"];
        } else {
            givenName = "Jerry"; //TODO: Autogenerate
            hpMax = this->getBonus("con") * hdCount;
            for(int i = 0; i < hdCount; i++) {
                hpMax += roll(hdSides);
            }
            hp = hpMax;
        }
    }

    template<typename T> vector<json> getJsonVectP(vector<T> src) {
        vector<json> ret;
        for(T i : src) {
            ret.push_back(i->toJson());
        }
        return ret;
    }

    nlohmann::json Creature::toJson() const {
        return nlohmann::json({
                {"name", creatureName},
                {"size", size},
                {"type", type},
                {"alignment", alignment},
                {"hit_die_count", hdCount},
                {"hit_die_sides", hdSides},
                {"speed", speed},
                {"stats", stats},
                {"skills", skills},
                {"saves", saves},
                {"langs", langs},
                {"cr", cr},
                {"prof", proficiency},
                {"d_immunities", dmgImmunities},
                {"d_resistances", dmgResistances},
                {"d_vulnerabilities", dmgVulnerabilities},
                {"c_immunities", condImmunities},
                {"givenName", givenName},
                {"hpMax", hpMax},
                {"hp", hp},
                {"inventory", getJsonVectP(inventory)},
                {"features", getJsonVectP(features)}
        });
    }

    // True if type without matching qualifiers is in subdata
    bool conditionApplies(const string& type, const vector<string>& qualifiers, const vector<dmgType> subdata) {
        bool applies = false;
        for(dmgType con : subdata) {
            if(con.type == type) {
                applies = true;
                for(string qualifier : qualifiers) {
                    if(find(con.qualifiers.begin(), con.qualifiers.end(), qualifier) == con.qualifiers.end()) {
                        applies = false;
                    }
                }
            }
        }
        return applies;
    }

    void Creature::applyDamage(int amount, const string& type, const vector<string>& qualifiers) {
        if(! conditionApplies(type, qualifiers, dmgImmunities)) {
            if(conditionApplies(type, qualifiers, dmgResistances)) {
                hp -= amount / 2;
            } else if(conditionApplies(type, qualifiers, dmgVulnerabilities)) {
                hp -= amount * 2;
            } else {
                hp -= amount;
            }
        }
    }

    int Creature::getSkillBonus(const string& skill) const {
        int bonus = this->getBonus(rules::skill2ability[skill]);
        if(skills.contains(skill)) {
            bonus += skills.at(skill) * getProficiency();
        }
        return bonus;
    }

    int Creature::getAbilitySaveBonus(const string& ability) const {
        int bonus = this->getBonus(ability);
        if(find(saves.begin(), saves.end(), ability) != saves.end()) {
            bonus += getProficiency();
        }
        return bonus;
    }

    void Creature::addInventoryItem(shared_ptr<entry::Item> item) {
        inventory.push_back(item);
    }

    void Creature::removeInventoryItem(const string& name) {
        for(auto it = inventory.begin(); it != inventory.end(); it++) {
            if((*it)->getName() == name) {
                inventory.erase(it);
                break;
            }
        }
    }

    map<string, int> Creature::getSkills() const {
        map<string, int> s;
        for(auto skill : skills) {
            s[skill.first] = getSkillBonus(skill.first);
        }
        return s;
    }

    map<string, int> Creature::getSaves() const {
        map<string, int> s;
        for(auto save : saves) {
            s[save] = this->getBonus(save) + getProficiency();
        }
        return s;
    }

    void Creature::setScore(const string& ability, int score) {
        stats[ability] = score;
    }

    void Creature::setProfLevel(const string& skill, int level) {
        skills[skill] = level;
    }

    const int getAC(const Creature& c) {
        int baseBonus = 10 + c.getBonus("dex");
        int miscBonus = 0;
        for(auto a : getItems<entry::Armor>(c)) {
            if(c.getScore("str") < a->getStrRequirement()) {
                continue;
            }
            auto armorType = a->getArmorType();
            if(armorType== "misc" || armorType == "shield") {
                miscBonus += a->getACBonus();
            } else {
                baseBonus = a->getACBonus();
                if(armorType == "light") {
                    baseBonus += c.getBonus("dex");
                } else if(armorType == "medium") {
                    baseBonus += (c.getBonus("dex") > 2)? 2 : c.getBonus("dex");
                }
            }
        }
        return baseBonus + miscBonus;
    }

    template<typename T> vector<string> mapItems(const vector<shared_ptr<T>>& items) {
        vector<string> out;
        for(auto i : items) {
            out.push_back(i->getName());
        }
        return out;
    }

    string genText(const Creature& c) {
        stringstream text;
        text << c.getGivenName() << " (" << c.getCreatureName() << "): " << c.getHP() << "/" << c.getHPMax() << " hp, " << getAC(c) << " ac";
        string armor = utils::join(mapItems(creature::getItems<entry::Armor>(c)), ", ");
        if(! armor.empty()) {
            text << " (" << armor << ")";
        }
        text << ", speed " << c.getSpeed() << "\n";
        text << "A cr " << c.getCR() << " " << c.getAlignment() << " " << c.getSize() << " " << c.getType() << ".\n";
        text << "Stats:\n";
        //text << setiosflags(ios::fixed) << setw(6);
        for(auto ability : rules::abilities) {
            text << " " << setw(6) << std::left << ability;
        }
        text << "\n";
        for(auto ability : rules::abilities) {
            text << setw(7) << std::left << (to_string(c.getScore(ability)) + "(" + to_string(c.getBonus(ability)) + ")");
        }
        text << "\n";
        text << "Senses: ";
        if(! c.getSenses().empty()) {
            text << utils::join(c.getSenses(), ", ") << ". ";
        }
        text << "Passive Perception " << 10 + c.getBonus("wis") << "\n";
        if(! c.getLanguages().empty()) {
            text << "Languages: " << c.getLanguages() << "\n";
        }

        text << "\nSkills:\n";
        for(auto skill : c.getSkills()) {
            text << skill.first << " (+" << skill.second << ")\n";
        }
        text << "\nSaves:\n";
        for(auto save : c.getSaves()) {
            text << save.first << " (+" << save.second << ")\n";
        }
        text << "\nFeatures:\n";
        for(auto f: c.getFeatures()) {
            text << f->getText(c) << "\n";
        }
        text << "\nInventory:\n";
        for(auto i : c.getInventory()) {
            text << i->getText(c) << "\n";
        }

        return text.str();
    }
}