//! 思考 + 模型，如 `H opus-4.8`，等级按等级配色、模型名柔蓝。

use crate::color;
use crate::status::Status;

/// 固定配色：柔蓝。
const COLOR: (u8, u8, u8) = (130, 170, 230);

/// 如 `H opus-4.8`；思考缺失时只剩 `opus-4.8`；模型缺失时 `-`。
pub fn render(status: &Status) -> String {
    let name = status
        .model
        .as_ref()
        .and_then(|m| m.display_name())
        .unwrap_or("-");
    let level = status
        .effort
        .as_ref()
        .and_then(|e| e.level.as_deref())
        .unwrap_or("");
    combined(name, level)
}

/// 把思考等级与模型名拼成 `H opus-4.8` 并上色：
/// 等级按等级配色在前，模型名柔蓝在后。供渲染与 `test` 预览共用。
pub fn combined(name: &str, level: &str) -> String {
    let (r, g, b) = COLOR;
    let model = color::fg(&name_format(name), r, g, b);

    let think = thinking_format(level);
    if think == "-" {
        return model;
    }
    let (r, g, b) = thinking_color(level);
    format!("{} {model}", color::fg(think, r, g, b))
}

/// 模型名规范化：去 ` (...)` 后缀 → 小写 → 空格转 `-`，如 `Opus 4.8 (1M context)` → `opus-4.8`。
fn name_format(name: &str) -> String {
    let stripped = name.split(" (").next().unwrap_or(name).trim();
    stripped.to_lowercase().replace(' ', "-")
}

/// 思考等级简写：low→L, medium→M, high→H, xhigh→XH；缺失/未知 `-`。
fn thinking_format(level: &str) -> &'static str {
    match level {
        "low" => "L",
        "medium" => "M",
        "high" => "H",
        "xhigh" => "XH",
        _ => "-",
    }
}

/// 思考等级配色：越高越「热」。L 绿 → M 黄 → H 橙 → XH 红。
fn thinking_color(level: &str) -> (u8, u8, u8) {
    match level {
        "low" => (120, 200, 140),    // 柔绿
        "medium" => (220, 210, 110), // 柔黄
        "high" => (235, 165, 95),    // 柔橙
        "xhigh" => (228, 105, 105),  // 柔红
        _ => (150, 150, 150),        // 灰（兜底，正常走不到）
    }
}