export const CONFLICT_RELATION_TYPES = [
  { value: 'conflict_open', label: 'Открытый конфликт / враждебность' },
  { value: 'conflict_tension', label: 'Напряжение / скрытое недовольство' },
  { value: 'conflict_alliance', label: 'Союз / поддержка' },
  { value: 'conflict_neutral', label: 'Нейтральная / слабая связь' },
]

export const CONFLICT_RELATION_STYLES = {
  conflict_open: {
    color: '#e74c3c',
    highlight: '#ff6b6b',
    width: 3.5,
    dashes: false,
    opacity: 0.95,
  },
  conflict_tension: {
    color: '#f1c40f',
    highlight: '#f5d76e',
    width: 2.5,
    dashes: [8, 5],
    opacity: 0.9,
  },
  conflict_alliance: {
    color: '#2ecc71',
    highlight: '#58d68d',
    width: 2.5,
    dashes: false,
    opacity: 0.9,
  },
  conflict_neutral: {
    color: '#95a5a6',
    highlight: '#b2babb',
    width: 1.5,
    dashes: [5, 5],
    opacity: 0.65,
  },
}

export const CONFLICT_CENTER_NODE_ID = '__conflict_center__'

const CONFLICT_TYPE_LABELS = Object.fromEntries(
  CONFLICT_RELATION_TYPES.map((t) => [t.value, t.label])
)

export function isConflictRelationType(type) {
  return String(type || '').startsWith('conflict_')
}

export function conflictRelationLabel(type) {
  return CONFLICT_TYPE_LABELS[type] || type
}

export function conflictRelationToVisEdge(edge) {
  const style = CONFLICT_RELATION_STYLES[edge.relation_type] || CONFLICT_RELATION_STYLES.conflict_neutral
  return {
    id: String(edge.id),
    from: String(edge.from),
    to: String(edge.to),
    relation_type: edge.relation_type,
    width: style.width,
    dashes: style.dashes,
    hoverWidth: style.width + 8,
    selectionWidth: style.width + 12,
    color: {
      color: style.color,
      highlight: style.highlight,
      opacity: style.opacity,
    },
    arrows: { to: { enabled: true, scaleFactor: 0.85 } },
    smooth: false,
    title: edge.title || conflictRelationLabel(edge.relation_type),
  }
}

export function involvementNodeSize(involvement) {
  const raw = Number(involvement)
  const i = Number.isFinite(raw) ? Math.max(1, Math.min(5, raw)) : 3
  return 10 + (i - 1) * 4
}

export function involvementFromRadiusRatio(ratio) {
  const safe = Math.max(0, Math.min(1, Number(ratio) || 0.5))
  return Math.max(1, Math.min(5, Math.round(5 - safe * 4)))
}

export function radiusRatioFromInvolvement(involvement) {
  const i = Math.max(1, Math.min(5, Number(involvement) || 3))
  return 0.92 - ((i - 1) / 4) * 0.67
}