-- The MIT License (MIT)
--
-- Copyright © 2026 Scott E. Graves <scott.e.graves@protonmail.com>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy of this software
-- and associated documentation files (the “Software”), to deal in the Software without restriction,
-- including without limitation the rights to use, copy, modify, merge, publish, distribute,
-- sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in all copies or
-- substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
-- BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--
require("darcula.utils.string")
require("darcula.utils.table")

local utils = require("darcula.utils")
local utils_os = require("darcula.utils.os")
local utils_ui = require("darcula.utils.ui")

NV_Darcula_Close_Invalid = function()
  local buffer_numbers = vim.api.nvim_list_bufs()
  for _, buffer_number in pairs(buffer_numbers) do
    local buf_info = vim.fn.getbufinfo(buffer_number)
    if buf_info ~= nil then
      buf_info = buf_info[1]
      if buf_info.windows ~= nil and #buf_info.windows > 0 then
        local win_type = vim.fn.win_gettype(buf_info.windows[1])
        if win_type ~= nil and win_type == "popup" then
          vim.api.nvim_buf_delete(buffer_number, {force = true})
        end
      end
    end
  end
end

NV_Darcula_Close_All = function(write_all)
  NV_Darcula_Close_Invalid()

  write_all = write_all or false
  vim.cmd(utils.iff(write_all, "wqa!", "qa!"))
end

NV_Darcula_Coc_Completion_Confirm = function()
  if vim.fn["coc#pum#visible"]() ~= 0 then
    return vim.fn["coc#pum#confirm"]()
  end

  return "<C-g>u<CR><c-r>=coc#on_enter()<CR>"
end

NV_Darcula_Coc_Float_Scroll = function(fwd)
  if vim.fn["coc#float#has_scroll"]() == 1 then
    vim.fn["coc#float#scroll"](utils.iff(fwd and fwd ~= 0, 1, 0))
    return
  end
  return "<C-" .. utils.iff(fwd and fwd ~= 0, "f", "b") .. ">"
end

NV_Darcula_Coc_Float_Scroll_Insert_Mode = function(fwd)
  if vim.fn["coc#float#has_scroll"]() == 1 then
    return "<c-r>=coc#float#scroll(" ..
      utils.iff(fwd and fwd ~= 0, 1, 0) .. ")<cr>"
  end

  return "<" .. utils.iff(fwd and fwd ~= 0, "Right", "Left") .. ">"
end

NV_Darcula_Coc_Shift_Tab_Complete = function()
  if vim.fn["coc#pum#visible"]() ~= 0 then
    return vim.fn["coc#pum#prev"](1)
  end

  return "<C-h>"
end

NV_Darcula_Coc_Tab_Complete = function()
  if vim.fn["coc#pum#visible"]() ~= 0 then
    return vim.fn["coc#pum#next"](1)
  end

  local check_backspace = function()
    local col = vim.api.nvim_win_get_cursor(0)[2]
    return (col == 0 or
      vim.api.nvim_get_current_line():sub(col, col):match("%s")) and
      true
  end

  if check_backspace() then
    return "<tab>"
  end

  return vim.fn["coc#refresh"]()
end

NV_Darcula_Copen = function()
  vim.cmd(":Copen")
  vim.cmd(":wincmd j")
end

NV_Darcula_Font_Name = function()
  return "JetBrainsMonoNL NFM"
end

NV_Darcula_Git_Root = function(cwd)
  cwd = cwd or vim.loop.cwd()
  local cmd = {"git", "-C", cwd, "rev-parse", "--show-toplevel"}
  local output = vim.fn.systemlist(cmd)
  if vim.v.shell_error == 0 and output[1] and #output[1] > 0 then
    return vim.fn.fnamemodify(output[1], ":p")
  end

  return cwd
end

NV_Darcula_Grab_Selection = function(cb)
  local selection = utils.get_visual_text()
  vim.schedule(
    function()
      cb(selection)
    end
  )
end

NV_Darcula_Load_RC = function()
  local local_vimrc = vim.fn.getcwd() .. "/.nvimrc"
  if vim.loop.fs_stat(local_vimrc) then
    vim.cmd("source " .. local_vimrc)
  end
end

NV_Darcula_LSP_Restart = function()
  if NV_DARCULA_ENABLE_COC then
    pcall(
      function()
        if vim.fn["coc#rpc#ready"] ~= nil and vim.fn["coc#rpc#ready"]() == 1 then
          vim.cmd(":silent! :CocRestart")
          NV_Darcula_Refresh_Buffer()
        end
      end
    )
    return
  end

  vim.cmd("LspRestart")
  NV_Darcula_Refresh_Buffer()
end

NV_Darcula_LSP_Stop = function()
  if NV_DARCULA_ENABLE_COC then
    vim.cmd(":silent! :CocStop")
  end
end

NV_Darcula_Open_Nvim_Tree = function(sync)
  if sync and sync ~= 0 then
    vim.cmd("NvimTreeFindFile")
    return
  end

  vim.cmd("NvimTreeFindFileToggle")
end

NV_Darcula_Refresh_Buffer = function()
  vim.cmd(":silent! :e%")
end

NV_Darcula_Set_Gui_Font = function(size)
  if utils_ui.is_gui() then
    if vim.env.MY_STATE_HOME ~= nil and not utils_os.is_windows then
      if utils.file_exists(vim.env.MY_STATE_HOME .. "/.desktop") then
        if size == 0 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h18")
          return
        end

        if size == 1 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h15")
          return
        end

        if size == 2 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h21")
          return
        end

        if size == 3 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h28")
          return
        end
      end

      if utils.file_exists(vim.env.MY_STATE_HOME .. "/.laptop2") then
        if size == 0 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h22")
          return
        end

        if size == 1 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h19")
          return
        end

        if size == 2 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h25")
          return
        end

        if size == 3 then
          vim.opt.guifont =
            NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h12", ":h32")
          return
        end
        return
      end

      if utils.file_exists(vim.env.MY_STATE_HOME .. "/.laptop") then
        -- vim.opt.guifont =
        --   NV_Darcula_Font_Name() .. utils.iff(util_os.is_mac, ":h12", ":h18")
        return
      end
    end

    vim.opt.guifont =
      NV_Darcula_Font_Name() .. utils.iff(utils_os.is_mac, ":h15", ":h18")
  end
end

NV_Darcula_Set_Gui_Popup = function(enable)
  if utils_ui.is_gui() and vim.fn.exists(":GuiPopupmenu") ~= 0 then
    vim.cmd("GuiPopupmenu " .. utils.iff(enable, "1", "0"))
  end
end

NV_Darcula_Show_Documentation = function()
  local file_type = vim.bo.filetype
  if table.contains({"vim", "help"}, file_type) then
    NV_Darcula_Show_Vim_Documentation(false)
    return
  end

  if NV_DARCULA_ENABLE_COC then
    if vim.fn.CocAction("hasProvider", "hover") then
      vim.api.nvim_feedkeys(
        vim.api.nvim_replace_termcodes("<Esc>", true, false, true),
        "n",
        true
      )

      vim.fn.CocActionAsync("doHover")
      return
    end
    return
  end

  local bufnr = vim.api.nvim_get_current_buf()
  local clients =
    vim.lsp.get_clients(
    {
      bufnr = bufnr,
      method = "textDocument/hover"
    }
  )

  if #clients == 0 then
    return
  end

  vim.lsp.buf.hover()
end

NV_Darcula_Show_Man_Documentation = function(visual)
  local is_cpp = utils.is_c_family_file()
  if visual then
    if is_cpp then
      require("cppman").open(utils.get_visual_text(), true)
      return
    end

    vim.cmd("vertical Man " .. vim.fn.escape(utils.get_visual_text(), " "))
    return
  end

  if is_cpp then
    require("cppman").open(utils.cword(), true)
    return
  end
  vim.cmd("vertical Man")
end

NV_Darcula_Show_Vim_Documentation = function(visual)
  if visual then
    vim.cmd("vertical help " .. utils.get_visual_text())
    return
  end

  vim.cmd("vertical help " .. utils.cword())
end

NV_Darcula_Write_All = function()
  vim.cmd("silent! wa!")
end