-----------------------------------------------------------
-- Neovim File Tree Configuration
-----------------------------------------------------------

--- To see mappings `g?` on nvim-tree
--- To see default mappings `:nvim-tree-default-mappings`

local icons = {
  git_placement = "after",
  modified_placement = "after",
  padding = " ",
  show = {
    file = true,
    folder = true,
    folder_arrow = true,
    git = true,
    modified = true,
  },

  glyphs = {
    default = "󰈔",
    symlink = "",
    folder = {
      arrow_open = "",
      arrow_closed = "",
      default = " ",
      open = " ",
      empty = " ",
      empty_open = " ",
      symlink = "",
      symlink_open = "",
    },
    git = {
      deleted = "",
      unmerged = "",
      untracked = "",
      unstaged = "",
      staged = "",
      renamed = "➜",
      ignored = "◌",
    },
  },
}

local renderer = {
  indent_width = 2,
  indent_markers = {
    enable = true,
    inline_arrows = true,
    icons = {
      corner = "└",
      edge = "│",
      item = "│",
      bottom = "─",
      none = " ",
    },
  },
  icons = icons,
}

local system_open = { cmd = "zathura" }

local HEIGHT_RATIO = 0.8
local WIDTH_RATIO = 0.15

local float = {
  enable = false,
  open_win_config = function()
    local screen_w = vim.opt.columns:get()
    local screen_h = vim.opt.lines:get() - vim.opt.cmdheight:get()
    local window_w = screen_w * WIDTH_RATIO
    local window_h = screen_h * HEIGHT_RATIO
    local window_w_int = math.floor(window_w)
    local window_h_int = math.floor(window_h)
    local center_x = (screen_w - window_w) / 2
    local center_y = ((vim.opt.lines:get() - window_h) / 2) - vim.opt.cmdheight:get()
    return {
      border = "rounded",
      relative = "editor",
      row = center_y,
      col = center_x,
      width = window_w_int,
      height = window_h_int,
    }
  end,
}

local view = {
  cursorline = false,
  hide_root_folder = false,
  float = float,
  signcolumn = "no",
  width = function()
    return math.floor(vim.opt.columns:get() * WIDTH_RATIO)
  end,
  side = "left",
}

local api = require("nvim-tree.api")
local function on_attach(bufnr)
  local function opts(desc)
    return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
  end

  local mappings = {
    ["<C-]>"] = { api.tree.change_root_to_node, "CD" },
    ["<C-e>"] = { api.node.open.replace_tree_buffer, "Open: In Place" },
    ["<C-k>"] = { api.node.show_info_popup, "Info" },
    ["<C-r>"] = { api.fs.rename_sub, "Rename: Omit Filename" },
    ["<C-t>"] = { api.node.open.tab, "Open: New Tab" },
    ["<C-v>"] = { api.node.open.vertical, "Open: Vertical Split" },
    ["<C-x>"] = { api.node.open.horizontal, "Open: Horizontal Split" },
    ["<BS>"] = { api.node.navigate.parent_close, "Close Directory" },
    -- ["<CR>"] = { api.node.open.edit, "Open" },
    ["<Tab>"] = { api.node.open.preview, "Open Preview" },
    [">"] = { api.node.navigate.sibling.next, "Next Sibling" },
    ["<"] = { api.node.navigate.sibling.prev, "Previous Sibling" },
    ["."] = { api.node.run.cmd, "Run Command" },
    ["-"] = { api.tree.change_root_to_parent, "Up" },
    ["a"] = { api.fs.create, "Create" },
    ["bmv"] = { api.marks.bulk.move, "Move Bookmarked" },
    ["B"] = { api.tree.toggle_no_buffer_filter, "Toggle No Buffer" },
    ["c"] = { api.fs.copy.node, "Copy" },
    -- ["C"] = { api.tree.toggle_git_clean_filter, "Toggle Git Clean" },
    ["[c"] = { api.node.navigate.git.prev, "Prev Git" },
    ["]c"] = { api.node.navigate.git.next, "Next Git" },
    ["d"] = { api.fs.remove, "Delete" },
    ["D"] = { api.fs.trash, "Trash" },
    ["E"] = { api.tree.expand_all, "Expand All" },
    ["e"] = { api.fs.rename_basename, "Rename: Basename" },
    ["]e"] = { api.node.navigate.diagnostics.next, "Next Diagnostic" },
    ["[e"] = { api.node.navigate.diagnostics.prev, "Prev Diagnostic" },
    ["F"] = { api.live_filter.clear, "Clean Filter" },
    ["f"] = { api.live_filter.start, "Filter" },
    ["g?"] = { api.tree.toggle_help, "Help" },
    ["gy"] = { api.fs.copy.absolute_path, "Copy Absolute Path" },
    ["H"] = { api.tree.toggle_hidden_filter, "Toggle Dotfiles" },
    ["I"] = { api.tree.toggle_gitignore_filter, "Toggle Git Ignore" },
    ["J"] = { api.node.navigate.sibling.last, "Last Sibling" },
    ["K"] = { api.node.navigate.sibling.first, "First Sibling" },
    ["m"] = { api.marks.toggle, "Toggle Bookmark" },
    -- ["o"] = { api.node.open.edit, "Open" },
    ["O"] = { api.node.open.no_window_picker, "Open: No Window Picker" },
    ["p"] = { api.fs.paste, "Paste" },
    ["P"] = { api.node.navigate.parent, "Parent Directory" },
    ["q"] = { api.tree.close, "Close" },
    ["r"] = { api.fs.rename, "Rename" },
    ["R"] = { api.tree.reload, "Refresh" },
    ["s"] = { api.node.run.system, "Run System" },
    ["S"] = { api.tree.search_node, "Search" },
    ["U"] = { api.tree.toggle_custom_filter, "Toggle Hidden" },
    ["W"] = { api.tree.collapse_all, "Collapse" },
    ["x"] = { api.fs.cut, "Cut" },
    ["y"] = { api.fs.copy.filename, "Copy Name" },
    ["Y"] = { api.fs.copy.relative_path, "Copy Relative Path" },
    ["<2-LeftMouse>"] = { api.node.open.edit, "Open" },
    ["<2-RightMouse>"] = { api.tree.change_root_to_node, "CD" },

    -- Mappings migrated from view.mappings.list
    ["l"] = { api.node.open.edit, "Open" },
    ["<CR>"] = { api.node.open.edit, "Open" },
    ["o"] = { api.node.open.edit, "Open" },
    ["h"] = { api.node.navigate.parent_close, "Close Directory" },
    ["v"] = { api.node.open.vertical, "Open: Vertical Split" },
    ["C"] = { api.tree.change_root_to_node, "CD" },
  }
  for keys, mapping in pairs(mappings) do
    vim.keymap.set("n", keys, mapping[1], opts(mapping[2]))
  end
end
api.events.subscribe(api.events.Event.FileCreated, function(file)
  vim.cmd("edit" .. file.fname)
end)

require("nvim-tree").setup({
  disable_netrw = true,
  hijack_netrw = true,
  auto_reload_on_write = true,
  update_focused_file = {
    enable = true,
    update_cwd = false,
    update_root = false,
    ignore_list = {},
  },
  root_dirs = {},
  prefer_startup_root = true,
  hijack_cursor = true,
  --hijack_directories = {
  --  enable = false,
  --},
  --respect_buf_cwd = false,
  sync_root_with_cwd = true,
  --reload_on_bufenter = false,
  view = view,
  system_open = system_open,
  renderer = renderer,
  on_attach = on_attach,
  notify = {
    threshold = vim.log.levels.ERROR,
  },
  git = { ignore = false },
  diagnostics = {
    enable = true,
    show_on_dirs = true,
    icons = {
      hint = "⚑",
      info = "􀅳",
      warning = "▲",
      error = "",
    },
  },
  trash = {
    cmd = "gio trash",
    require_confirm = true,
  },
  modified = {
    enable = false,
    show_on_dirs = true,
    show_on_open_dirs = true,
  },
  actions = {
    use_system_clipboard = true,
    change_dir = {
      enable = true,
      global = false,
      restrict_above_cwd = false,
    },
    remove_file = {
      close_window = true,
    },
    open_file = {
      quit_on_open = true,
      resize_window = false,
      window_picker = {
        enable = true,
        chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890",
        exclude = {
          filetype = { "notify", "packer", "qf", "diff", "fugitive", "fugitiveblame" },
          buftype = { "nofile", "terminal", "help" },
        },
      },
    },
  },
})

local api = require("nvim-tree.api")
local event = api.events.Event
api.events.subscribe(event.TreeOpen, function(_)
  vim.cmd([[setlocal statuscolumn=\ ]])
  vim.cmd([[setlocal cursorlineopt=number]])
  vim.cmd([[setlocal fillchars+=vert:🮇]])
  vim.cmd([[setlocal fillchars+=horizup:🮇]])
  vim.cmd([[setlocal fillchars+=vertright:🮇]])
end)

local function open_nvim_tree(data)
  vim.cmd.cd(data.file:match("(.+)/[^/]*$"))
  local directory = vim.fn.isdirectory(data.file) == 1
  if not directory then
    return
  end
  require("nvim-tree.api").tree.open()
end
vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })

-- Highlight Groups
vim.api.nvim_command("highlight NvimTreeNormal guibg=none")
--vim.api.nvim_command("highlight NvimTreeSymlink ")
--vim.api.nvim_command("highlight NvimTreeSymlinkFolderName ")   --(Directory)
--vim.api.nvim_command("highlight NvimTreeFolderName ")          --(Directory)
--vim.api.nvim_command("highlight NvimTreeRootFolder ")
--vim.api.nvim_command("highlight NvimTreeFolderIcon ")
--vim.api.nvim_command("highlight NvimTreeOpenedFolderIcon ")    --(NvimTreeFolderIcon)
--vim.api.nvim_command("highlight NvimTreeClosedFolderIcon ")    --(NvimTreeFolderIcon)
--vim.api.nvim_command("highlight NvimTreeFileIcon ")
--vim.api.nvim_command("highlight NvimTreeEmptyFolderName ")     --(Directory)
--vim.api.nvim_command("highlight NvimTreeOpenedFolderName ")    --(Directory)
--vim.api.nvim_command("highlight NvimTreeExecFile ")
--vim.api.nvim_command("highlight NvimTreeOpenedFile ")
--vim.api.nvim_command("highlight NvimTreeModifiedFile ")
--vim.api.nvim_command("highlight NvimTreeSpecialFile ")
--vim.api.nvim_command("highlight NvimTreeImageFile ")
--vim.api.nvim_command("highlight NvimTreeIndentMarker ")
--vim.api.nvim_command("highlight NvimTreeLspDiagnosticsError ")         --(DiagnosticError)
--vim.api.nvim_command("highlight NvimTreeLspDiagnosticsWarning ")       --(DiagnosticWarn)
--vim.api.nvim_command("highlight NvimTreeLspDiagnosticsInformation ")   --(DiagnosticInfo)
--vim.api.nvim_command("highlight NvimTreeLspDiagnosticsHint ")          --(DiagnosticHint)
--vim.api.nvim_command("highlight NvimTreeGitDirty ")
--vim.api.nvim_command("highlight NvimTreeGitStaged ")
--vim.api.nvim_command("highlight NvimTreeGitMerge ")
--vim.api.nvim_command("highlight NvimTreeGitRenamed ")
--vim.api.nvim_command("highlight NvimTreeGitNew ")
--vim.api.nvim_command("highlight NvimTreeGitDeleted ")
--vim.api.nvim_command("highlight NvimTreeGitIgnored ")      --(Comment)
--vim.api.nvim_command("highlight NvimTreeWindowPicker ")
--vim.api.nvim_command("highlight NvimTreeNormal ")
--vim.api.nvim_command("highlight NvimTreeEndOfBuffer ")     --(NonText)
--vim.api.nvim_command("highlight NvimTreeCursorLine ")      --(CursorLine)
--vim.api.nvim_command("highlight NvimTreeCursorLineNr ")    --(CursorLineNr)
--vim.api.nvim_command("highlight NvimTreeLineNr ")          --(LineNr)
--vim.api.nvim_command("highlight NvimTreeWinSeparator ")    --(WinSeparator)
--vim.api.nvim_command("highlight NvimTreeCursorColumn ")    --(CursorColumn)

--vim.api.nvim_command("highlight NvimTreeFileDirty ")       --(NvimTreeGitDirty)
--vim.api.nvim_command("highlight NvimTreeFileStaged ")      --(NvimTreeGitStaged)
--vim.api.nvim_command("highlight NvimTreeFileMerge ")       --(NvimTreeGitMerge)
--vim.api.nvim_command("highlight NvimTreeFileRenamed ")     --(NvimTreeGitRenamed)
--vim.api.nvim_command("highlight NvimTreeFileNew ")         --(NvimTreeGitNew)
--vim.api.nvim_command("highlight NvimTreeFileDeleted ")     --(NvimTreeGitDeleted)
--vim.api.nvim_command("highlight NvimTreeFileIgnored ")     --(NvimTreeGitIgnored)

--vim.api.nvim_command("highlight NvimTreeLiveFilterPrefix ")
--vim.api.nvim_command("highlight NvimTreeLiveFilterValue ")

--vim.api.nvim_command("highlight NvimTreeBookmark ")