use anyhow::Result;
use engine::prelude::*;

use crate::{
    components::{
        ability_slots::AbilitySlots, attributes::Attributes, character_status::CharacterStatus,
        crafting_materials::CraftingMaterials, inventory::Inventory, item_slots::ItemSlotContainer,
        level::Level, statistics::Statistics,
    },
    items::{ItemAffix, ItemSystem, Rarities, ability_book::Ability},
};

use std::env::var;

use super::{attributes::AttributeSettings, experience::ExperienceSettings, items::ItemSettings};

#[cfg(target_os = "windows")]
pub fn save_game_dir(game: &str) -> String {
    let b = var("LOCALAPPDATA").expect("couldn't get local appdata variable");

    format!("{b}\\{game}\\saves\\")
}

#[cfg(target_os = "linux")]
pub fn save_game_dir(game: &str) -> String {
    let b = var("HOME").expect("couldn't get HOME variable");

    format!("{b}/.local/share/{game}/saves/")
}

create_settings_section!(
    General,
    "General",
    {
        level: u32,
        exp: u32,
        name: String,
        strength: u32,
        agility: u32,
        intelligence: u32,
    }
);

create_settings_section!(
    HelmetSlot,
    "Helmet",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    ChestPlateSlot,
    "ChestPlate",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    BeltSlot,
    "Belt",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    GlovesSlot,
    "Gloves",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    BootsSlot,
    "Boots",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    FirstRingSlot,
    "Ring0",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    SecondRingSlot,
    "Ring1",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    ThirdRingSlot,
    "Ring2",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    FourthRingSlot,
    "Ring3",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    FirstAmuletSlot,
    "Amulet0",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    SecondAmuletSlot,
    "Amulet1",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    MainHandSlot,
    "MainHand",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    OffHandSlot,
    "OffHand",
    {
        used: bool,
        level: u32,
        strength: u32,
        agility: u32,
        intelligence: u32,
        rarity: Rarities,
        [affixes: ItemAffix],
    }
);

create_settings_section!(
    InventorySave,
    "Inventory",
    {
        [items: String],
        [addons: String],
        [books: String],
        [jewels: String],
        [maps: String],
    }
);

create_settings_section!(
    FirstAbilitySlot,
    "FirstAbilitySlot",
    {
        used: bool,
        name: String,
        rarity: Rarities,
        level: u32,
        [addons: String],
    }
);

create_settings_section!(
    SecondAbilitySlot,
    "SecondAbilitySlot",
    {
        used: bool,
        name: String,
        rarity: Rarities,
        level: u32,
        [addons: String],
    }
);

create_settings_section!(
    ThirdAbilitySlot,
    "ThirdAbilitySlot",
    {
        used: bool,
        name: String,
        rarity: Rarities,
        level: u32,
        [addons: String],
    }
);

create_settings_section!(
    FourthAbilitySlot,
    "FourthAbilitySlot",
    {
        used: bool,
        name: String,
        rarity: Rarities,
        level: u32,
        [addons: String],
    }
);

create_settings_section!(
    CraftingMaterialInfo,
    "CraftingMaterials",
    {
        common: u32,
        uncommon: u32,
        magical: u32,
        rare: u32,
        epic: u32,
        legendary: u32,
    }
);

create_settings_section!(
    PassivesInfo,
    "Passives",
    {
        blood_mage: u32,
        vampire: u32,
        hermes: u32,
        thick_skinned: u32,
        super_brain: u32,
        survivalist: u32,
        soul_catcher: u32,
        pyromancer: u32,
        thunder_god: u32,
        sea_monster: u32,
        gladiator: u32,
        lucky_devil: u32,
        rogue: u32,
        alchemist: u32,
    }
);

create_settings_container!(
    SaveGame,
    {
        general: General,

        // items
        helmet: HelmetSlot,
        chest_plate: ChestPlateSlot,
        belt: BeltSlot,
        gloves: GlovesSlot,
        boots: BootsSlot,

        // rings
        ring_0: FirstRingSlot,
        ring_1: SecondRingSlot,
        ring_2: ThirdRingSlot,
        ring_3: FourthRingSlot,

        // amulets
        amulet_0: FirstAmuletSlot,
        amulet_1: SecondAmuletSlot,

        // hands
        main_hand: MainHandSlot,
        off_hand: OffHandSlot,

        // inventory
        inventory: InventorySave,

        // abilities
        ability_0: FirstAbilitySlot,
        ability_1: SecondAbilitySlot,
        ability_2: ThirdAbilitySlot,
        ability_3: FourthAbilitySlot,

        crafting_materials: CraftingMaterialInfo,

        passives: PassivesInfo,
    }
);

impl SaveGame {
    pub fn to_entity_object<A: Ability + 'static>(
        self,
        world: &mut World,
    ) -> Result<(Entity, String)> {
        let mut entity_object = AssetHandler::create(world).empty_entity();

        entity_object.insert_component(Draw::new(Vec::new()));
        entity_object.insert_component(Audio::new(world.resources.get_mut::<Context>(), None)?);
        Location::new_and_setup(&mut entity_object)?;

        let experience_settings = world.resources.get::<ExperienceSettings>();
        let attribute_settings = world.resources.get::<AttributeSettings>();
        let item_settings = world.resources.get::<ItemSettings>();
        let item_system = world.resources.get::<ItemSystem<A>>();

        let level = Level::load(self.general.level, self.general.exp, experience_settings);
        let mut attributes = Attributes::load(
            self.general.strength,
            self.general.agility,
            self.general.intelligence,
        );
        let inventory = Inventory::load(&self, &item_system)?;
        let abilities = AbilitySlots::load(item_system, &self)?;
        let crafting_materials = CraftingMaterials::load(&self);
        let items = ItemSlotContainer::load(&self, &item_system)?;
        let mut statistics = Statistics::default();
        statistics.update(&mut attributes, attribute_settings, (&items, item_settings));
        let current_status = CharacterStatus::new_full(&statistics);

        entity_object.insert_component(level);
        entity_object.insert_component(attributes);
        entity_object.insert_component(inventory);
        entity_object.insert_component(abilities);
        entity_object.insert_component(crafting_materials);
        entity_object.insert_component(items);
        entity_object.insert_component(statistics);
        entity_object.insert_component(current_status);

        Ok((world.add_entity(entity_object)?, self.general.name))
    }
}