import {Vector} from './Vector.js'
import {NotAType, Returns} from '#core/Type.js'
import {Any, match} from '#core/TypePatterns.js'
import {BooleanT} from '#boolean/BooleanT.js'

export const deepEqual = [
   match([Vector, Any], Returns(BooleanT, () => false)),
   match([Any, Vector], Returns(BooleanT, () => false)),
   match([Vector, Vector], (math, [V, W]) => {
      if (V.Component === NotAType || W.Component === NotAType) {
         return Returns(BooleanT, (v, w) => v === w
            || (v.length === w.length
                && v.every((e, i) => math.deepEqual(e, w[i]))))
      }
      const compDeep = math.deepEqual.resolve([V.Component, W.Component])
      return Returns(BooleanT, (v,w) => v === w
         || (v.length === w.length
             && v.every((e, i) => compDeep(e, w[i]))))
   })
]