use std::path::{PathBuf, Path};
use anyhow::{anyhow, Result};
use ini::Ini;
use crate::{model::{misc::{ConfigHook, ConfigHookAime, ConfigHookAimeUnit, ConfigHookAuth, Game}, profile::{Aime, IOSelection, Segatools}}, profiles::ProfilePaths, util::{self, PathStr}};
use crate::pkg_store::PackageStore;

impl Segatools {
    pub fn fix(&mut self, store: &PackageStore) {
        macro_rules! remove_if_nonpresent {
            ($item:expr,$key:expr,$emptyval:expr,$store:expr) => {
                if let Ok(pkg) = $store.get($key) {
                    if pkg.loc.is_none() {
                        $item = $emptyval;
                    }
                } else {
                    $item = $emptyval;
                }
            }
        }

        if let Some(key) = &self.hook {
            remove_if_nonpresent!(self.hook, key, None, store);
        }
        if let IOSelection::Custom(key) = &self.io2 {
            remove_if_nonpresent!(self.io2, key, IOSelection::default(), store);
        }
        match &self.aime {
            Aime::AMNet(key) => remove_if_nonpresent!(self.aime, key, Aime::BuiltIn, store),
            Aime::Other(key) => remove_if_nonpresent!(self.aime, key, Aime::BuiltIn, store),
            _ => {},
        }
    }
    pub fn load_from_ini(&mut self, ini: &Ini, config_dir: impl AsRef<Path>) -> Result<()> {
        log::debug!("loading sgt");
        if let Some(s) = ini.section(Some("vfs")) {
            s.get("amfs").map(|v| self.amfs = PathBuf::from(v));
            s.get("appdata").map(|v| self.appdata = PathBuf::from(v));
            s.get("option").map(|v| self.option = PathBuf::from(v));
        }

        if let Some(s) = ini.section(Some("aime")) {
            if s.get("enable").unwrap_or("0") == "1" {
                if let Some(aime_path) = s.get("aimePath") {
                    if let Some(game_dir) = self.target.parent() {
                        let target = game_dir.join(aime_path);
                        std::fs::copy(target, config_dir.as_ref().join("aime.txt"))?;
                    } else {
                        log::error!("profile doesn't have a game directory");
                    }
                } else {
                    log::warn!("aime emulation is enabled, but no aimePath specified");
                }
            }
        }

        Ok(())
    }
    pub async fn line_up(&self, p: &impl ProfilePaths, game: Game) -> Result<Ini> {
        log::debug!("begin line-up: segatools");

        let pfx_dir = p.data_dir();
        let exe_dir = self.target.parent().ok_or_else(|| anyhow!("Invalid target path"))?;

        log::debug!("segatools: {:?} {:?}", pfx_dir, exe_dir);

        let ini_path = p.config_dir().join("segatools-base.ini");

        if !ini_path.exists() {
            match game {
                Game::Ongeki => tokio::fs::write(&ini_path, include_bytes!("../../static/segatools-ongeki.ini"))
                    .await.map_err(|e| anyhow!("Error creating {:?}: {}", ini_path, e))?,
                Game::Chunithm => tokio::fs::write(&ini_path, include_bytes!("../../static/segatools-chunithm.ini"))
                    .await.map_err(|e| anyhow!("Error creating {:?}: {}", ini_path, e))?
            }
        }
        if !pfx_dir.exists() {
            tokio::fs::create_dir(&pfx_dir).await
                .map_err(|e| anyhow!("Error creating {:?}: {}", pfx_dir, e))?;
        }

        let ini_in = tokio::fs::read_to_string(&ini_path).await?;
        let ini_in = Ini::load_from_str(&ini_in)?;

        let opt_dir_out = &pfx_dir.join("option");
        let opt_dir_in = if self.option.as_os_str().len() > 0 && self.option.is_relative() {
            exe_dir.join(&self.option)
        } else {
            self.option.clone()
        };

        let mut ini_out = ini_in.clone();
        ini_out.with_section(Some("vfs"))
            .set(
                "option",
                opt_dir_out.stringify()?
            )
            .set("amfs", self.amfs.stringify()?)
            .set("appdata", self.appdata.stringify()?);

        if game == Game::Ongeki {
            ini_out.with_section(Some("unity"))
                .set("enable", "1")
                .set(
                    "targetAssembly",
                    pfx_dir.join("BepInEx").join("core").join("BepInEx.Preloader.dll").stringify()?
                );
        }

        if self.aime != Aime::Disabled {
            ini_out.with_section(Some("aime"))
                .set("enable", "1")
                .set("aimePath", p.config_dir().join("aime.txt").stringify()?);
            if let Aime::AMNet(key) = &self.aime {
                let mut aimeio = ini_out.with_section(Some("aimeio"));
                aimeio
                    .set("path", util::pkg_dir().join(key.to_string()).join("segatools").join("aimeio.dll").stringify()?)

                    .set("serverAddress", &self.amnet.addr)
                    .set("useAimeDBForPhysicalCards", if self.amnet.physical { "1" } else { "0" })
                    .set("enableKeyboardMode", "0");

                match game {
                    Game::Ongeki => aimeio.set("gameId", "SDDT"),
                    Game::Chunithm => aimeio.set("gameId", "SDHD")
                };

                if let Ok(keyboard_code) = std::fs::read_to_string(p.config_dir().join("aime.txt")) {
                    log::debug!("{} {}", keyboard_code, keyboard_code.len());
                    if keyboard_code.len() == 20 {
                        aimeio.set("enableKeyboardMode", "1");
                    }
                }

                if self.amnet.name.len() > 0 {
                    aimeio.set("serverName", &self.amnet.name);
                }
            }
        } else {
            ini_out.with_section(Some("aime"))
                .set("enable", "0");
        }

        if game == Game::Ongeki {
            if let IOSelection::Custom(io) = &self.io2 {
                ini_out.with_section(Some("mu3io"))
                    .set("path", util::pkg_dir().join(io.to_string()).join("segatools").join("mu3io.dll").stringify()?);
            } else {
                ini_out.with_section(Some("mu3io"))
                    .set("path", "");
            }
        }
        match game {
            Game::Ongeki => {
                match &self.io2 {
                    IOSelection::Custom(io) => {
                        ini_out.with_section(Some("mu3io"))
                            .set("path", util::pkg_dir().join(io.to_string()).join("segatools").join("mu3io.dll").stringify()?);
                    }
                    IOSelection::SegatoolsBuiltIn => {
                        ini_out.with_section(Some("mu3io"))
                            .set("path", "");
                    }
                    IOSelection::Hardware => {
                        ini_out.with_section(Some("io4"))
                            .set("enable", "0");
                    }
                }
            },
            Game::Chunithm => {
                match &self.io2 {
                    IOSelection::Custom(io) => {
                        ini_out.with_section(Some("chuniio"))
                            .set("path32", util::pkg_dir().join(io.to_string()).join("segatools").join("chuniio32.dll").stringify()?)
                            .set("path64", util::pkg_dir().join(io.to_string()).join("segatools").join("chuniio64.dll").stringify()?);
                    }
                    IOSelection::SegatoolsBuiltIn => {
                        ini_out.with_section(Some("chuniio"))
                            .set("path32", "")
                            .set("path64", "");
                    }
                    IOSelection::Hardware => {
                        ini_out.with_section(Some("io4"))
                            .set("enable", "0");
                    }
                }
            }
        };

        log::debug!("option dir: {:?} -> {:?}", opt_dir_in, opt_dir_out);

        if !opt_dir_out.exists() {
            tokio::fs::create_dir(opt_dir_out).await?;
        }

        if opt_dir_in.as_os_str().len() > 0 {
            for opt in opt_dir_in.read_dir()? {
                let opt = opt?;
                util::symlink(&opt.path(), opt_dir_out.join(opt.file_name())).await?;
            }
        }

        if !exe_dir.join("DEVICE").join("ca.crt").exists() {
            util::copy_directory(
                util::pkg_dir().join(self.hook_dir()?).join("DEVICE"),
                exe_dir.join("DEVICE"),
                false
            )?;
        }

        let mut cfg_hook = ConfigHook::default();

        if game == Game::Chunithm {
            cfg_hook.allnet_auth = Some({
                ConfigHookAuth {
                    r#type: "1.0".to_owned()
                }
            })
        }
        if let Some(port) = self.aime_port {
            if self.aime == Aime::Disabled {
                cfg_hook.aime = Some({
                    ConfigHookAime {
                        unit: vec![
                            ConfigHookAimeUnit {
                                port,
                                id: 1
                            }
                        ]
                    }
                })
            }
        }
        std::fs::write(pfx_dir.join("config_hook.json"), serde_json::to_string(&cfg_hook)?)?;

        log::debug!("end line-up: segatools");

        Ok(ini_out)
    }

    pub fn hook_dir(&self) -> Result<PathBuf> {
        Ok(util::pkg_dir()
            .join(self.hook.as_ref().ok_or_else(|| anyhow!("No hook"))?.to_string())
            .join("segatools"))
    }
}