-- Explorer-Konfiguration (Neo-tree)
require('neo-tree').setup({
  close_if_last_window = false,
  popup_border_style = "rounded",
  enable_git_status = true,
  enable_diagnostics = true,
  sources = {
    "filesystem",
    "buffers",
    "git_status",
  },
  source_selector = {
    winbar = true,
    content_layout = "center",
    tabs_layout = "equal",
  },
  filesystem = {
    filtered_items = {
      visible = true,
      hide_dotfiles = false,
      hide_gitignored = false,
    },
    follow_current_file = {
      enabled = true,
    },
    use_libuv_file_watcher = true,
  },
  window = {
    position = "right",
    width = 35,
    mapping_options = {
      noremap = true,
      nowait = true,
    },
  },
  git_status = {
    symbols = {
      added = "✚",
      modified = "",
      deleted = "✖",
      renamed = "➜",
      untracked = "★",
      ignored = "◌",
      unstaged = "✗",
      staged = "✓",
      conflict = "",
    },
  },
})

-- Harpoon (Schnellwechsel zwischen Dateien)
local mark = require("harpoon.mark")
local ui = require("harpoon.ui")

vim.keymap.set("n", "<leader>a", mark.add_file, { desc = "Datei zu Harpoon hinzufügen" })
vim.keymap.set("n", "<leader>h", ui.toggle_quick_menu, { desc = "Harpoon-Menü anzeigen" })

-- Schnellzugriff auf die ersten 4 Dateien
vim.keymap.set("n", "<leader>1", function() ui.nav_file(1) end, { desc = "Harpoon Datei 1" })
vim.keymap.set("n", "<leader>2", function() ui.nav_file(2) end, { desc = "Harpoon Datei 2" })
vim.keymap.set("n", "<leader>3", function() ui.nav_file(3) end, { desc = "Harpoon Datei 3" })
vim.keymap.set("n", "<leader>4", function() ui.nav_file(4) end, { desc = "Harpoon Datei 4" })

-- Tastenkombinationen für Neo-tree
vim.keymap.set("n", "<leader>e", ":Neotree toggle right<CR>", { silent = true, desc = "Explorer öffnen" })

-- Git Signs
require('gitsigns').setup({
  signs = {
    add          = { text = '+' },
    change       = { text = '~' },
    delete       = { text = '_' },
    topdelete    = { text = '‾' },
    changedelete = { text = '~' },
    untracked    = { text = '┆' },
  },
  signcolumn = true,
  on_attach = function(bufnr)
    local gs = package.loaded.gitsigns

    -- Navigation zwischen Änderungen
    vim.keymap.set('n', ']c', function()
      if vim.wo.diff then return ']c' end
      vim.schedule(function() gs.next_hunk() end)
      return '<Ignore>'
    end, { expr = true, buffer = bufnr })

    vim.keymap.set('n', '[c', function()
      if vim.wo.diff then return '[c' end
      vim.schedule(function() gs.prev_hunk() end)
      return '<Ignore>'
    end, { expr = true, buffer = bufnr })
  end
})