library("TreeTools")

test_that("VisualizeMatching() works", {
  tree1 <- PectinateTree(1:11)
  tree2 <- tree1
  tree2$tip.label[c(11, 1)] <- tree1$tip.label[c(1, 11)]
  tree2r <- CollapseNode(tree2, 20:21)
  
  Minus <- function(...) {
    x <- MutualClusteringInfo(...)
    attr(x, "pairScores") <- -attr(x, "pairScores")
    x
  }
  expect_error(VisualizeMatching(Minus, PectinateTree(8), BalancedTree(8), 
                                 setPar = FALSE))
  
  skip_if_not_installed("vdiffr")
  skip_if(packageVersion("graphics") < "4.3")
  skip_if(packageVersion("vdiffr") < "1.0")
  
  vdiffr::expect_doppelganger("Test VM", TestVM <- function() {
    VisualizeMatching(MutualClusteringInfo, tree1, tree2, 
                      setPar = TRUE, precision = 3, matchZeros = FALSE,
                      Plot = plot.phylo) -> x
    expect_equal(sum(attr(x, "matchedScores")), x[[1]])
  })
  
  vdiffr::expect_doppelganger("Test VMr", function() {
    VisualizeMatching(MutualClusteringInfo, tree1, tree2r,
                      setPar = TRUE, precision = 3, matchZeros = TRUE, 
                      Plot = plot.phylo, cex = 1.5)
  })
  
  vdiffr::expect_doppelganger("Visualize MCI matching", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- ape::read.tree(text="((1, 2), ((3, (4, 5)), (6, (7, (8, 9)))));")
    tree2 <- ape::read.tree(text="((1, 2), ((3, 4, (5, 9)), (6, (7, 8))));")
    VisualizeMatching(MutualClusteringInfo, tree1, tree2,
                      setPar = FALSE, precision = 3L,
                      Plot = TreeDistPlot,
                      matchZeros = FALSE,
                      leaveRoom = FALSE)
    VisualizeMatching(MutualClusteringInfo, tree2, tree1,
                      setPar = FALSE, precision = 3,
                      Plot = TreeDistPlot,
                      matchZeros = FALSE,
                      leaveRoom = FALSE)
  })
  
  vdiffr::expect_doppelganger("RF: Collapse a node", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- ape::read.tree(text="((1, 2), ((6, (7, 8)), (3, 4, (5, 9))));")
    tree2 <- ape::read.tree(text="((1, 2), ((3, (4, (5, 9))), (6, (7, 8))));")
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE, precision = 3,
                      edge.cex = 1,
                      Plot = TreeDistPlot,
                      matchZeros = TRUE,
                      leaveRoom = FALSE)
    VisualizeMatching(RobinsonFouldsMatching, tree2, tree1,
                      setPar = FALSE, precision = 3,
                      Plot = TreeDistPlot,
                      matchZeros = FALSE,
                      leaveRoom = FALSE)
  })
  
  vdiffr::expect_doppelganger("Hidden edge labels", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.2)
    tree1 <- ape::read.tree(text="((1, 2), ((6, (7, 8)), (3, 4, (5, 9))));")
    tree2 <- ape::read.tree(text="((1, 2), ((3, (4, (5, 9))), (6, (7, 8))));")
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE, precision = 3,
                      edge.cex = 0,
                      value.cex = 2,
                      Plot = TreeDistPlot,
                      matchZeros = TRUE,
                      leaveRoom = FALSE)
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE, precision = 3,
                      edge.cex = 2,
                      value.cex = FALSE,
                      Plot = TreeDistPlot,
                      matchZeros = TRUE,
                      leaveRoom = FALSE)
  })
  
  
  vdiffr::expect_doppelganger("RF: Collapse and change", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- ape::read.tree(text="((1, 2), ((6, (7, 8)), (3, 4, (5, 9))));")
    tree2 <- ape::read.tree(text="((1, 2), ((3, (4, (5, 9))), ((6, 7), 8)));")
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE, precision = 3L,
                      Plot = TreeDistPlot,
                      matchZeros = TRUE,
                      leaveRoom = FALSE)
    VisualizeMatching(RobinsonFouldsMatching, tree2, tree1,
                      setPar = FALSE, precision = 3L,
                      Plot = TreeDistPlot,
                      matchZeros = FALSE,
                      leaveRoom = FALSE)
  })
  
  vdiffr::expect_doppelganger("RF VM Single splits; plainEdges", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- ape::read.tree(text = "((1, 2), (3, 4, 5, 6, 7, 8));")
    tree2 <- ape::read.tree(text = "((1, 2, 3), (4, 5, 6, 7, 8));")
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE,
                      Plot = TreeDistPlot,
                      matchZeros = TRUE,
                      plainEdges = TRUE,
                      edge.width = NULL,
                      leaveRoom = FALSE)
    VisualizeMatching(RobinsonFouldsMatching, tree2, tree1,
                      setPar = FALSE,
                      Plot = TreeDistPlot,
                      matchZeros = FALSE,
                      plainEdges = FALSE,
                      leaveRoom = FALSE)
  })
  
  vdiffr::expect_doppelganger("JRF VM matchZeros FALSE", function() {
    JRF2 <- function(tree1, tree2, ...) 
      JaccardRobinsonFoulds(tree1, tree2, k = 2, allowConflict = FALSE, ...)
    
    tree1 <- RootTree(as.phylo(704564, 10), paste0("t", c(1, 4, 5, 8, 9)))
    tree2 <- RootTree(as.phylo(20165 , 10), paste0("t", c(1, 4)))
    VisualizeMatching(JRF2, tree1, tree2, matchZeros = FALSE)
  })
})

test_that("VisualizeMatching() handles unrooted trees", {
  skip_if_not_installed("graphics", "4.3")
  skip_if_not_installed("vdiffr", "1.0")
  
  vdiffr::expect_doppelganger("VM unrooted", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- UnrootTree(BalancedTree(1:5))
    tree2 <- UnrootTree(PectinateTree(1:5))
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      edge.frame = "n",
                      setPar = FALSE,
                      Plot = TreeDistPlot)
  })
  
  vdiffr::expect_doppelganger("VM one rooted", function() {
    par(mfrow = c(2, 2), mar = rep(0.1, 4), cex = 1.5)
    tree1 <- UnrootTree(BalancedTree(1:5))
    tree2 <- PectinateTree(1:5)
    VisualizeMatching(RobinsonFouldsMatching, tree1, tree2,
                      setPar = FALSE,
                      Plot = TreeDistPlot)
  })
})