import { render } from '@testing-library/react'
import ProgressCircle from './progress-circle'

const extractLargeArcFlag = (pathData: string): string => {
  const afterA = pathData.slice(pathData.indexOf('A') + 1)
  const tokens = afterA.replace(/,/g, ' ').trim().split(/\s+/)
  // Arc syntax: A rx ry x-axis-rotation large-arc-flag sweep-flag x y
  return tokens[3]
}

describe('ProgressCircle', () => {
  describe('Render', () => {
    it('renders an SVG with default props', () => {
      const { container } = render(<ProgressCircle />)

      const svg = container.querySelector('svg')
      const circle = container.querySelector('circle')
      const path = container.querySelector('path')

      expect(svg).toBeInTheDocument()
      expect(circle).toBeInTheDocument()
      expect(path).toBeInTheDocument()
    })
  })

  describe('Props', () => {
    it('applies correct size and viewBox when size is provided', () => {
      const size = 24
      const strokeWidth = 2

      const { container } = render(
        <ProgressCircle size={size} circleStrokeWidth={strokeWidth} />,
      )

      const svg = container.querySelector('svg') as SVGElement

      expect(svg).toHaveAttribute('width', String(size + strokeWidth))
      expect(svg).toHaveAttribute('height', String(size + strokeWidth))
      expect(svg).toHaveAttribute(
        'viewBox',
        `0 0 ${size + strokeWidth} ${size + strokeWidth}`,
      )
    })

    it('applies custom stroke and fill classes to the circle', () => {
      const { container } = render(
        <ProgressCircle
          circleStrokeColor="stroke-red-500"
          circleFillColor="fill-red-100"
        />,
      )
      const circle = container.querySelector('circle')!
      expect(circle!).toHaveClass('stroke-red-500')
      expect(circle!).toHaveClass('fill-red-100')
    })

    it('applies custom sector fill color to the path', () => {
      const { container } = render(
        <ProgressCircle sectorFillColor="fill-blue-500" />,
      )
      const path = container.querySelector('path')!
      expect(path!).toHaveClass('fill-blue-500')
    })

    it('uses large arc flag when percentage is greater than 50', () => {
      const { container } = render(<ProgressCircle percentage={75} />)
      const path = container.querySelector('path')!
      const d = path.getAttribute('d') || ''
      expect(d).toContain('A')
      expect(extractLargeArcFlag(d)).toBe('1')
    })

    it('uses small arc flag when percentage is 50 or less', () => {
      const { container } = render(<ProgressCircle percentage={25} />)
      const path = container.querySelector('path')!
      const d = path.getAttribute('d') || ''
      expect(d).toContain('A')
      expect(extractLargeArcFlag(d)).toBe('0')
    })

    it('uses small arc flag when percentage is exactly 50', () => {
      const { container } = render(<ProgressCircle percentage={50} />)
      const path = container.querySelector('path')!
      const d = path.getAttribute('d') || ''
      expect(d).toContain('A')
      expect(extractLargeArcFlag(d)).toBe('0')
    })
  })
})