use crate::discord::Context;
use crate::error::Error;
use crate::models::lil_fren;
use crate::models::lil_fren::{AliveState, LilFren, LilFrenState};
use poise::serenity_prelude::model::misc::EmojiIdentifier;
use poise::serenity_prelude::utils::MessageBuilder;
use rand::prelude::IndexedRandom;
use rand::{rng, Rng};

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn adopt(
    ctx: Context<'_>,
    #[description = "Lil buddy to adopt"] lil_buddy: EmojiIdentifier,
) -> Result<(), Error> {
    if let Some(lil_fren) = LilFren::get_lil_fren(&ctx.data().db)? {
        if lil_fren.is_alive() == AliveState::Alive {
            ctx.reply("Your buddy is still alive, please take care of him :)")
                .await?;
            return Ok(());
        }
    }

    LilFren::create_new_lil_fren(&ctx.data().db, lil_buddy.id)?;
    let guild = ctx.guild_id().unwrap();
    let emoji = guild.emoji(&ctx, lil_buddy.id).await?;

    let mut msg_builder = MessageBuilder::new();

    msg_builder.push("Congrats on adopting ");
    msg_builder.emoji(&emoji);
    msg_builder.push("!");
    ctx.reply(msg_builder.build()).await?;

    Ok(())
}

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn checkup(ctx: Context<'_>) -> Result<(), Error> {
    let lil_fren = LilFren::get_lil_fren(&ctx.data().db)?;

    if let Some(lil_fren) = lil_fren {
        let guild = ctx.guild_id().unwrap();
        let alive_state = lil_fren.is_alive();

        if alive_state == AliveState::Alive {
            let state_msg = match lil_fren.state {
                LilFrenState::Standing => "Little buddy is standing.",
                LilFrenState::TaxFraud => "Your buddy is comiting tax fraud",
                LilFrenState::Sick => "Oh no! Buddy is sick!",
                LilFrenState::Dancing => "Buddy got some moves!",
                LilFrenState::Sleep => "Shhh, buddy is  asleep",
                LilFrenState::Magic => "Wizard Buddy loves casting spells",
                LilFrenState::AttemptingToCircumventDeath => {
                    "Buddy appears to be researching how to be come immortal"
                }
                LilFrenState::AttemptingToNotCauseAResonanceCascade => {
                    "Lil buddy is trying to prevent a resonance cascade"
                }
                LilFrenState::Mining => "Lil buddy found some diamonds!",
                LilFrenState::PhasedIntoYourReality => {
                    "Lil Buddy has phased into your reality, they will be back soon"
                }
            };

            ctx.reply(state_msg).await?;
            ctx.reply(lil_fren.draw(ctx, &guild).await).await?;
        } else {
            let resp = match alive_state {
                AliveState::Alive => "",
                AliveState::DiedOfBoredom => "Your little buddy died of boredom RIP",
                AliveState::DiedOfHunger => "Your little buddy died of hunger RIP",
                AliveState::DiedOfThirst => "Your little buddy died of thirst",
            };

            ctx.reply(resp).await?;
        }
    } else {
        ctx.reply("Sorry you have no little buddy right now. Please adopt!")
            .await?;
    }

    Ok(())
}

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn feed(
    ctx: Context<'_>,
    #[description = "Item to feed lil buddy"] food: String,
) -> Result<(), Error> {
    let lil_fren = LilFren::get_lil_fren(&ctx.data().db)?;

    if let Some(mut lil_fren) = lil_fren {
        if lil_fren.is_alive() == AliveState::Alive {
            let feed: f32 = rng().gen_range(-0.1..=1.0);
            lil_fren.hunger = (lil_fren.hunger + feed).clamp(-1.0, 1.0);
            let guild = ctx.guild_id().unwrap();

            let lil_fren_emoji = guild.emoji(&ctx, lil_fren.emoji).await?;

            if feed > 0.0 {
                ctx.reply("Lil buddy seemed to like that!").await?;
            } else {
                ctx.reply("Lil buddy DID not like that!").await?;
            }

            ctx.reply(lil_fren::draw_feed(&lil_fren_emoji, &food))
                .await?;

            ctx.data().db.insert(lil_fren)?;
        } else {
            ctx.reply("You may want to check on your buddy...").await?;
        }
    } else {
        ctx.reply("Sorry no little buddy found!").await?;
    }

    Ok(())
}

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn give_water(ctx: Context<'_>) -> Result<(), Error> {
    let lil_fren = LilFren::get_lil_fren(&ctx.data().db)?;

    if let Some(mut lil_fren) = lil_fren {
        if lil_fren.is_alive() == AliveState::Alive {
            lil_fren.thirst = (lil_fren.thirst + 0.5).clamp(-1.0, 1.0);
            let guild = ctx.guild_id().unwrap();

            let lil_fren_emoji = guild.emoji(ctx, lil_fren.emoji).await?;

            ctx.reply("Lil buddy be drinking!").await?;
            ctx.data().db.insert(lil_fren)?;

            let drink = if rng().random_bool(0.20) {
                ":beer:"
            } else {
                ":cup_with_straw:"
            };

            ctx.reply(lil_fren::draw_feed(&lil_fren_emoji, drink))
                .await?;
        } else {
            ctx.reply("You may want to check on your buddy...").await?;
        }
    } else {
        ctx.reply("Sorry no little buddy found!").await?;
    }

    Ok(())
}

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn play(ctx: Context<'_>) -> Result<(), Error> {
    let lil_fren = LilFren::get_lil_fren(&ctx.data().db)?;

    if let Some(mut lil_fren) = lil_fren {
        if lil_fren.is_alive() == AliveState::Alive {
            lil_fren.entertainment =
                (lil_fren.entertainment + rng().random_range(0.10..1.0)).clamp(-1.0, 1.0);
            let guild = ctx.guild_id().unwrap();

            let lil_fren_emoji = guild.emoji(ctx, lil_fren.emoji).await?;

            ctx.data().db.insert(lil_fren)?;

            let toy = ctx.data().cfg.toys.choose(&mut rng()).unwrap();
            ctx.reply(lil_fren::draw_feed(&lil_fren_emoji, toy)).await?;
        } else {
            ctx.reply("You may want to check on your buddy...").await?;
        }
    } else {
        ctx.reply("Sorry no little buddy found!").await?;
    }

    Ok(())
}

#[poise::command(prefix_command, guild_only, category = "Lil Buddy")]
pub async fn give_medicine(ctx: Context<'_>) -> Result<(), Error> {
    let lil_fren = LilFren::get_lil_fren(&ctx.data().db)?;

    if let Some(mut lil_fren) = lil_fren {
        if lil_fren.is_alive() == AliveState::Alive {
            let guild = ctx.guild_id().unwrap();

            let reply = if lil_fren.state == LilFrenState::Sick {
                lil_fren.state = LilFrenState::Standing;
                "Little buddy feels better now!"
            } else {
                "Little buddy is now addicted to cough drops, I hope you are happy"
            };

            let lil_fren_emoji = guild.emoji(ctx, lil_fren.emoji).await?;

            ctx.data().db.insert(lil_fren)?;

            ctx.reply(reply).await?;
            ctx.reply(lil_fren::draw_feed(&lil_fren_emoji, ":pill:"))
                .await?;
        } else {
            ctx.reply("You may want to check on your buddy...").await?;
        }
    } else {
        ctx.reply("Sorry no little buddy found!").await?;
    }

    Ok(())
}