//! `studio.theme.sunset` — warm dusk Studio theme.
//!
//! Pink / orange / violet gradient feel. Reads like the sky
//! 20 minutes after sunset: still bright at the horizon,
//! purple settling in above. Light mode keeps a warm-white
//! surface; dark mode drops into a deep mulberry navy.

#![allow(clippy::result_large_err)]

use fai_plugin_sdk::{bindings, export_plugin};

type ColorScheme = bindings::chain::studio_plugin::plugin_types::ColorScheme;
type PluginError = bindings::chain::studio_plugin::plugin_types::PluginError;
type RenderedOutput = bindings::chain::studio_plugin::plugin_types::RenderedOutput;

const SUNSET_LIGHT: [u32; 14] = [
    0xFFE91E63, // primary           — pink 500
    0xFFFFFFFF, // on_primary
    0xFFFF7043, // secondary         — deep orange 400
    0xFFFFFFFF, // on_secondary
    0xFF8E24AA, // tertiary          — purple 600
    0xFFFFFFFF, // on_tertiary
    0xFFC62828, // error
    0xFFFFFFFF, // on_error
    0xFFFFF5F0, // surface           — warm whitespace
    0xFF38121F, // on_surface
    0xFFFFDDD0, // surface_variant
    0xFF804040, // on_surface_variant
    0xFFC97070, // outline
    0xFFE6BFB5, // outline_variant
];

const SUNSET_DARK: [u32; 14] = [
    0xFFF48FB1, // primary           — pink 200
    0xFF38121F, // on_primary
    0xFFFFAB91, // secondary         — deep orange 200
    0xFF381200, // on_secondary
    0xFFCE93D8, // tertiary          — purple 200
    0xFF38003A, // on_tertiary
    0xFFEF5350, // error
    0xFF1A0000, // on_error
    0xFF2A0F1F, // surface           — dark sunset
    0xFFFFD6E0, // on_surface
    0xFF4A2030, // surface_variant
    0xFFE6BFB5, // on_surface_variant
    0xFF806060, // outline
    0xFF4A2D38, // outline_variant
];

struct SunsetPlugin;

impl bindings::exports::chain::studio_plugin::theme::Guest for SunsetPlugin {
    fn theme_for(brightness: String) -> Result<ColorScheme, PluginError> {
        let tokens = match brightness.as_str() {
            "light" => SUNSET_LIGHT.to_vec(),
            "dark" => SUNSET_DARK.to_vec(),
            other => {
                return Err(PluginError::Declined(format!(
                    "sunset has no scheme for brightness '{other}' \
                     (supported: light, dark)"
                )));
            }
        };
        Ok(ColorScheme { brightness, tokens })
    }
}

impl bindings::exports::chain::studio_plugin::translate::Guest for SunsetPlugin {
    fn translate(
        _text: String,
        _from_locale: String,
        _to_locale: String,
    ) -> Result<String, PluginError> {
        Err(PluginError::Declined(
            "sunset is a theme plugin and does not translate".to_string(),
        ))
    }
}

impl bindings::exports::chain::studio_plugin::output_view::Guest for SunsetPlugin {
    fn render(
        _mime_type: String,
        _data: Vec<u8>,
    ) -> Result<RenderedOutput, PluginError> {
        Err(PluginError::Declined(
            "sunset is a theme plugin and does not render outputs".to_string(),
        ))
    }
}

export_plugin!(SunsetPlugin);