local p1, wk = pcall(require, "which-key")
local p2, gs = pcall(require, "gitsigns")

if not (p1 and p2) then
  return
end

gs.setup({
  on_attach = function(bufnr)
    -- Gitsigns
    wk.register({
      ["<leader>h"] = {
        name = "+Gitsigns",
        s = { "<cmd>Gitsigns stage_hunk<CR>", "Stage Hunk" },
        r = { "<cmd>Gitsigns reset_hunk<CR>", "Reset Hunk" },
      },
    }, { mode = { "n", "v" } })

    wk.register({
      ["<leader>h"] = {
        name = "+Gitsigns",
        s = { gs.stage_buffer, "Stage Buffer" },
        u = { gs.undo_stage_hunk, "Undo Stage Hunk" },
        R = { gs.reset_buffer, "Reset Buffer" },
        p = { gs.preview_hunk, "Preview Hunk" },
        b = {
          function()
            gs.blame_line({ full = true })
          end,
          "Blame line",
        },
        d = { gs.diffthis, "Diff current buffer" },
        D = {
          function()
            gs.diffthis("~")
          end,
          "Diff against last commit",
        },
      },
    })

    wk.register({
      ["<leader>t"] = {
        name = "+Toggle settings",
        b = { gs.toggle_current_line_blame, "Toggle blame lines" },
        d = { gs.toggle_deleted, "Toggle deleted lines" },
      },
    })

    wk.register({
      ["[c"] = {
        function()
          if vim.wo.diff then
            return "]c"
          end
          vim.schedule(function()
            gs.next_hunk()
          end)
          return "<Ignore>"
        end,
        "Go to Next Hunk",
      },
      ["]c"] = {
        function()
          if vim.wo.diff then
            return "[c"
          end
          vim.schedule(function()
            gs.prev_hunk()
          end)
          return "<Ignore>"
        end,
        "Go to Previous Hunk",
      },
    }, { expr = true })

    -- Text object
    wk.register({
      ["ih"] = { ":<C-U>Gitsigns select_hunk<CR>", "Select inside Hunk" },
    }, { mode = { "o", "x" } })
  end,
  signs = {
    add = {
      hl = "GitSignsAdd",
      text = "+",
      numhl = "GitSignsAddNr",
      linehl = "GitSignsAddLn",
    },
    change = {
      hl = "GitSignsChange",
      text = "~",
      numhl = "GitSignsChangeNr",
      linehl = "GitSignsChangeLn",
    },
    delete = {
      hl = "GitSignsDelete",
      text = "_",
      numhl = "GitSignsDeleteNr",
      linehl = "GitSignsDeleteLn",
    },
    topdelete = {
      hl = "GitSignsDelete",
      text = "‾",
      numhl = "GitSignsDeleteNr",
      linehl = "GitSignsDeleteLn",
    },
    changedelete = {
      hl = "GitSignsChange",
      text = "x",
      numhl = "GitSignsChangeNr",
      linehl = "GitSignsChangeLn",
    },
  },
  linehl = false,
  numhl = false,
  signcolumn = true,
  word_diff = false,
  watch_gitdir = { enable = false, interval = 1000, follow_files = true },
  attach_to_untracked = true,
  -- current line highlighting
  current_line_blame = false,
  current_line_blame_opts = {
    delay = 1000,
    ignore_whitespace = true,
    virt_text = true,
    virt_text_pos = "eol",
  },
  current_line_blame_formatter = "<author>, <author_time:%R> - <summary> | <abbrev_sha>",
  -- perf
  max_file_length = 40000,
  sign_priority = 6,
  update_debounce = 100,
  -- use the included status formatter
  status_formatter = nil,
  preview_config = {
    border = "single",
    style = "minimal",
    relative = "cursor",
    row = 0,
    col = 1,
  },
  yadm = { enable = false },
})