import { describe, expect, it } from "vitest"

// Simple drag-drop integration tests without complex mocks
describe("Drag-Drop Timeline Integration", () => {
  it("should validate drag operation data structure", () => {
    const dragOperation = {
      type: "media-file",
      sourceId: "file-123",
      targetType: "timeline-track",
      targetId: "track-456",
      position: { x: 100, y: 50 },
      metadata: {
        duration: 30,
        mediaType: "video",
      },
    }

    expect(dragOperation.type).toBe("media-file")
    expect(dragOperation.sourceId).toBe("file-123")
    expect(dragOperation.targetType).toBe("timeline-track")
    expect(dragOperation.targetId).toBe("track-456")
    expect(dragOperation.position.x).toBe(100)
    expect(dragOperation.metadata.duration).toBe(30)
  })

  it("should validate drop zone logic", () => {
    const dropZones = [
      { id: "track-1", type: "video", accepts: ["video", "image"] },
      { id: "track-2", type: "audio", accepts: ["audio"] },
      { id: "track-3", type: "subtitle", accepts: ["subtitle"] },
    ]

    const isValidDrop = (dragType: string, dropZoneId: string) => {
      const zone = dropZones.find((z) => z.id === dropZoneId)
      return zone ? zone.accepts.includes(dragType) : false
    }

    expect(isValidDrop("video", "track-1")).toBe(true)
    expect(isValidDrop("audio", "track-1")).toBe(false)
    expect(isValidDrop("audio", "track-2")).toBe(true)
    expect(isValidDrop("subtitle", "track-3")).toBe(true)
    expect(isValidDrop("video", "non-existent")).toBe(false)
  })

  it("should calculate drop position on timeline", () => {
    const calculateTimePosition = (pixelX: number, timeScale: number, scrollOffset: number) => {
      const adjustedX = pixelX + scrollOffset
      return adjustedX / timeScale
    }

    const timeScale = 10 // pixels per second
    const scrollOffset = 50

    expect(calculateTimePosition(0, timeScale, scrollOffset)).toBe(5)
    expect(calculateTimePosition(50, timeScale, scrollOffset)).toBe(10)
    expect(calculateTimePosition(100, timeScale, scrollOffset)).toBe(15)
  })

  it("should validate clip creation from drop", () => {
    const createClipFromDrop = (dragData: any, dropPosition: any) => {
      return {
        id: `clip-${Date.now()}`,
        trackId: dropPosition.trackId,
        startTime: dropPosition.time,
        duration: dragData.duration,
        mediaId: dragData.sourceId,
        type: dragData.mediaType,
      }
    }

    const dragData = {
      sourceId: "media-123",
      duration: 45,
      mediaType: "video",
    }

    const dropPosition = {
      trackId: "track-1",
      time: 10,
    }

    const clip = createClipFromDrop(dragData, dropPosition)

    expect(clip.trackId).toBe("track-1")
    expect(clip.startTime).toBe(10)
    expect(clip.duration).toBe(45)
    expect(clip.mediaId).toBe("media-123")
    expect(clip.type).toBe("video")
  })

  it("should handle track insertion zones", () => {
    const trackInsertionZones = [
      { id: "insert-above-track-1", position: "above", targetTrackId: "track-1" },
      { id: "insert-below-track-1", position: "below", targetTrackId: "track-1" },
      { id: "insert-above-track-2", position: "above", targetTrackId: "track-2" },
    ]

    const findInsertionZone = (zoneId: string) => {
      return trackInsertionZones.find((zone) => zone.id === zoneId)
    }

    const zone = findInsertionZone("insert-above-track-1")
    expect(zone).toBeDefined()
    expect(zone?.position).toBe("above")
    expect(zone?.targetTrackId).toBe("track-1")
  })
})