import { bar, lineWidth } from '../hud/format'
import type { Seg } from '../hud/format'
import type { View } from './core'

const axis = (v: number) => bar(((v + 1) / 2) * 100, 3)

// 由完整版往下捨棄次要資訊：氣泡 → 待辦 → PAD 條 → 好感階段；緊湊版只留「顏文字 名字 心情」
function line(v: View, level: number, compact: boolean, bubble?: string): Seg[] {
  const out: Seg[] = [
    { text: `${v.kaomoji} `, color: 'claude' },
    { text: v.core.name, bold: true },
    { text: ' ' },
    { text: v.label, color: 'suggestion' },
  ]
  if (compact) return out
  const dot = { text: ' · ', dim: true }
  if (level < 3) out.push(dot, { text: `P${axis(v.mood.p)} A${axis(v.mood.a)} D${axis(v.mood.d)}`, dim: true })
  if (level < 4) out.push(dot, { text: v.stage })
  if (level < 2 && v.todos > 0) out.push(dot, { text: `☐${v.todos}`, color: 'warning' })
  if (level < 1 && bubble) out.push(dot, { text: `💬 ${bubble}`, dim: true })
  return out
}

export const COMPANION_MAX_LEVEL = 4

export function fitCompanion(v: View, columns: number, compact = false, bubble?: string): Seg[] {
  if (compact) return line(v, 0, true)
  for (let level = 0; level <= COMPANION_MAX_LEVEL; level++) {
    const l = line(v, level, false, bubble)
    if (lineWidth(l) <= columns) return l
  }
  return line(v, 0, true)
}