use serde::{Deserialize, Serialize};

use oneclient_db::models::SettingProfileRow;

pub const GLOBAL_PROFILE_NAME: &str = "Global";

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
pub struct GameSettingsProfile {
    pub name: String,
    pub java_path: Option<String>,
    pub resolution: Option<Resolution>,
    pub force_fullscreen: Option<bool>,
    pub mem_max: Option<u32>,
    pub launch_args: Option<String>,
    pub launch_env: Option<String>,
    pub hook_pre: Option<String>,
    pub hook_wrapper: Option<String>,
    pub hook_post: Option<String>,
    pub os_extra: Option<SettingsOsExtra>,
    /// Never applies to bundle content
    pub browser_update_mode: Option<PackageUpdateMode>,
}

// `Resolution` lives in oneclient_common the launch-argument builder needs it
// and cannot depend on the launcher settings
pub use oneclient_common::Resolution;
pub use oneclient_common::domain::PackageUpdateMode;

cfg_select! {
    target_os = "windows" => {
        #[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
        pub struct SettingsOsExtra {}
    }
    target_os = "macos" => {
        #[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
        pub struct SettingsOsExtra {}
    }
    not(any(target_os = "windows", target_os = "macos")) => {
        #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
        pub struct SettingsOsExtra {
            pub enable_gamemode: Option<bool>,
        }

        impl Default for SettingsOsExtra {
            fn default() -> Self {
                Self {
                    enable_gamemode: Some(true),
                }
            }
        }
    }
}

impl GameSettingsProfile {
    pub fn default_global_profile() -> Self {
        Self {
            name: GLOBAL_PROFILE_NAME.into(),
            java_path: None,
            resolution: None,
            force_fullscreen: Some(false),
            mem_max: Some(4096),
            launch_args: None,
            launch_env: None,
            hook_pre: None,
            hook_wrapper: None,
            hook_post: None,
            os_extra: Some(SettingsOsExtra::default()),
            browser_update_mode: Some(PackageUpdateMode::default()),
        }
    }

    pub fn is_global(&self) -> bool {
        self.name == GLOBAL_PROFILE_NAME
    }

    pub fn merge_global(&mut self, global: &Self) {
        if self.java_path.is_none() {
            self.java_path = global.java_path.clone();
        }
        if self.resolution.is_none() {
            self.resolution = global.resolution;
        }
        if self.force_fullscreen.is_none() {
            self.force_fullscreen = global.force_fullscreen;
        }
        if self.mem_max.is_none() {
            self.mem_max = global.mem_max;
        }
        if self.launch_args.is_none() {
            self.launch_args = global.launch_args.clone();
        }
        if self.launch_env.is_none() {
            self.launch_env = global.launch_env.clone();
        }
        if self.hook_pre.is_none() {
            self.hook_pre = global.hook_pre.clone();
        }
        if self.hook_wrapper.is_none() {
            self.hook_wrapper = global.hook_wrapper.clone();
        }
        if self.hook_post.is_none() {
            self.hook_post = global.hook_post.clone();
        }
        if self.os_extra.is_none() {
            self.os_extra = global.os_extra.clone();
        }
        if self.browser_update_mode.is_none() {
            self.browser_update_mode = global.browser_update_mode;
        }
    }

    pub fn from_row(row: SettingProfileRow) -> crate::ClusterResult<Self> {
        Ok(Self {
            name: row.name,
            java_path: row.java_path,
            resolution: row
                .resolution
                .map(|json| serde_json::from_str(&json))
                .transpose()?,
            force_fullscreen: row.force_fullscreen.map(|v| v != 0),
            mem_max: row.mem_max.map(|v| v as u32),
            launch_args: row.launch_args,
            launch_env: row.launch_env,
            hook_pre: row.hook_pre,
            hook_wrapper: row.hook_wrapper,
            hook_post: row.hook_post,
            os_extra: row
                .os_extra
                .map(|json| serde_json::from_str(&json))
                .transpose()?,
            // Unrecognised values inherit rather than error so a profile from a
            // newer build cannot make the cluster unloadable
            browser_update_mode: row
                .browser_update_mode
                .as_deref()
                .and_then(PackageUpdateMode::parse),
        })
    }

    pub fn into_row(&self) -> crate::ClusterResult<SettingProfileRow> {
        Ok(SettingProfileRow {
            name: self.name.clone(),
            java_path: self.java_path.clone(),
            resolution: self
                .resolution
                .map(|res| serde_json::to_string(&res))
                .transpose()?,
            force_fullscreen: self.force_fullscreen.map(i64::from),
            mem_max: self.mem_max.map(i64::from),
            launch_args: self.launch_args.clone(),
            launch_env: self.launch_env.clone(),
            hook_pre: self.hook_pre.clone(),
            hook_wrapper: self.hook_wrapper.clone(),
            hook_post: self.hook_post.clone(),
            os_extra: self
                .os_extra
                .as_ref()
                .map(serde_json::to_string)
                .transpose()?,
            browser_update_mode: self
                .browser_update_mode
                .map(|mode| mode.as_str().to_string()),
        })
    }
}