use anyhow::bail;
use db::sqlez::{
    bindable::{Bind, Column, StaticColumnCount},
    statement::Statement,
};
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use settings::Setting;

#[derive(Deserialize)]
pub struct WorkspaceSettings {
    pub active_pane_magnification: f32,
    pub confirm_quit: bool,
    pub show_call_status_icon: bool,
    pub autosave: AutosaveSetting,
    pub default_dock_anchor: DockAnchor,
    pub git: GitSettings,
}

#[derive(Clone, Serialize, Deserialize, JsonSchema)]
pub struct WorkspaceSettingsContent {
    pub active_pane_magnification: Option<f32>,
    pub confirm_quit: Option<bool>,
    pub show_call_status_icon: Option<bool>,
    pub autosave: Option<AutosaveSetting>,
    pub default_dock_anchor: Option<DockAnchor>,
    pub git: Option<GitSettings>,
}

#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum AutosaveSetting {
    Off,
    AfterDelay { milliseconds: u64 },
    OnFocusChange,
    OnWindowChange,
}

#[derive(PartialEq, Eq, Debug, Default, Copy, Clone, Hash, Serialize, Deserialize, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum DockAnchor {
    #[default]
    Bottom,
    Right,
    Expanded,
}

#[derive(Copy, Clone, Debug, Default, Serialize, Deserialize, JsonSchema)]
pub struct GitSettings {
    pub git_gutter: Option<GitGutterSetting>,
    pub gutter_debounce: Option<u64>,
}

#[derive(Clone, Copy, Debug, Default, Serialize, Deserialize, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum GitGutterSetting {
    #[default]
    TrackedFiles,
    Hide,
}

impl StaticColumnCount for DockAnchor {}

impl Bind for DockAnchor {
    fn bind(&self, statement: &Statement, start_index: i32) -> anyhow::Result<i32> {
        match self {
            DockAnchor::Bottom => "Bottom",
            DockAnchor::Right => "Right",
            DockAnchor::Expanded => "Expanded",
        }
        .bind(statement, start_index)
    }
}

impl Column for DockAnchor {
    fn column(statement: &mut Statement, start_index: i32) -> anyhow::Result<(Self, i32)> {
        String::column(statement, start_index).and_then(|(anchor_text, next_index)| {
            Ok((
                match anchor_text.as_ref() {
                    "Bottom" => DockAnchor::Bottom,
                    "Right" => DockAnchor::Right,
                    "Expanded" => DockAnchor::Expanded,
                    _ => bail!("Stored dock anchor is incorrect"),
                },
                next_index,
            ))
        })
    }
}

impl Setting for WorkspaceSettings {
    const KEY: Option<&'static str> = None;

    type FileContent = WorkspaceSettingsContent;

    fn load(
        default_value: &Self::FileContent,
        user_values: &[&Self::FileContent],
        _: &gpui::AppContext,
    ) -> anyhow::Result<Self> {
        Self::load_via_json_merge(default_value, user_values)
    }
}