// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

//! Types and functions related to shell.

use serde::{Deserialize, Deserializer};

use crate::scope::OpenScope;
use std::str::FromStr;

/// Program to use on the [`open()`] call.
pub enum Program {
    /// Use the `open` program.
    Open,
    /// Use the `start` program.
    Start,
    /// Use the `xdg-open` program.
    XdgOpen,
    /// Use the `gio` program.
    Gio,
    /// Use the `gnome-open` program.
    GnomeOpen,
    /// Use the `kde-open` program.
    KdeOpen,
    /// Use the `wslview` program.
    WslView,
    /// Use the `Firefox` program.
    Firefox,
    /// Use the `Google Chrome` program.
    Chrome,
    /// Use the `Chromium` program.
    Chromium,
    /// Use the `Safari` program.
    Safari,
}

impl FromStr for Program {
    type Err = super::Error;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let p = match s.to_lowercase().as_str() {
            "open" => Self::Open,
            "start" => Self::Start,
            "xdg-open" => Self::XdgOpen,
            "gio" => Self::Gio,
            "gnome-open" => Self::GnomeOpen,
            "kde-open" => Self::KdeOpen,
            "wslview" => Self::WslView,
            "firefox" => Self::Firefox,
            "chrome" | "google chrome" => Self::Chrome,
            "chromium" => Self::Chromium,
            "safari" => Self::Safari,
            _ => return Err(crate::Error::UnknownProgramName(s.to_string())),
        };
        Ok(p)
    }
}

impl<'de> Deserialize<'de> for Program {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        let s = String::deserialize(deserializer)?;
        Program::from_str(&s).map_err(|e| serde::de::Error::custom(e.to_string()))
    }
}

impl Program {
    pub(crate) fn name(self) -> &'static str {
        match self {
            Self::Open => "open",
            Self::Start => "start",
            Self::XdgOpen => "xdg-open",
            Self::Gio => "gio",
            Self::GnomeOpen => "gnome-open",
            Self::KdeOpen => "kde-open",
            Self::WslView => "wslview",

            #[cfg(target_os = "macos")]
            Self::Firefox => "Firefox",
            #[cfg(not(target_os = "macos"))]
            Self::Firefox => "firefox",

            #[cfg(target_os = "macos")]
            Self::Chrome => "Google Chrome",
            #[cfg(not(target_os = "macos"))]
            Self::Chrome => "google-chrome",

            #[cfg(target_os = "macos")]
            Self::Chromium => "Chromium",
            #[cfg(not(target_os = "macos"))]
            Self::Chromium => "chromium",

            #[cfg(target_os = "macos")]
            Self::Safari => "Safari",
            #[cfg(not(target_os = "macos"))]
            Self::Safari => "safari",
        }
    }
}

/// Opens path or URL with the program specified in `with`, or system default if `None`.
///
/// The path will be matched against the shell open validation regex, defaulting to `^((mailto:\w+)|(tel:\w+)|(https?://\w+)).+`.
/// A custom validation regex may be supplied in the config in `plugins > shell > scope > open`.
///
/// # Examples
///
/// ```rust,no_run
/// use tauri_plugin_shell::ShellExt;
/// tauri::Builder::default()
///   .setup(|app| {
///     // open the given URL on the system default browser
///     app.shell().open("https://github.com/tauri-apps/tauri", None)?;
///     Ok(())
///   });
/// ```
pub fn open<P: AsRef<str>>(scope: &OpenScope, path: P, with: Option<Program>) -> crate::Result<()> {
    scope.open(path.as_ref(), with).map_err(Into::into)
}