vim.g.mapleader = " "
vim.keymap.set("n", "<leader>e", "<cmd>Oil --float<CR>")
vim.keymap.set("n", "<leader>n", "<cmd>set nu!<CR>")
vim.keymap.set("n", "<leader>rn", "<cmd>set rnu!<CR>")
vim.keymap.set("n", "<CR>", "<cmd>nohl<CR>")
vim.keymap.set("n", "<leader>x", "<cmd>bw<CR>")
vim.keymap.set("n", "<leader>n", "<cmd>bn<CR>")
vim.keymap.set("n", "<leader>p", "<cmd>bp<CR>")
vim.keymap.set("n", "<leader>fb", "=ap")
vim.keymap.set("n", "<leader>m", "<cmd>make<CR>")
vim.keymap.set("n", "<leader><leader>", "<cmd>!chmod 755 %<CR>", { silent = true })
vim.keymap.set("n", "<A-J>", ":m .+1<CR>==")
vim.keymap.set("n", "<A-K>", ":m .-2<CR>==")
vim.keymap.set("v", "J", ":m '>+1<CR>gv=gv")
vim.keymap.set("v", "K", ":m '<-2<CR>gv=gv")
vim.keymap.set("n", "<A-a>", "<C-a>")
vim.keymap.set("n", "<A-x>", "<C-x>")
vim.keymap.set("v", ">", ">gv")
vim.keymap.set("v", "<", "<gv")
vim.keymap.set("n", "<leader>sl", "<cmd>exec \"normal i\".nr2char(getchar()).\"\\e\"<CR>")
vim.keymap.set("n", "<leader>sc", "<cmd>exec \"normal a\".nr2char(getchar()).\"\\e\"<CR>")

-- u/soer9459
vim.keymap.set("n", "<leader>,",
  function()
    local cursor = vim.api.nvim_win_get_cursor(0)
    vim.cmd("norm A;")
    vim.api.nvim_win_set_cursor(0, cursor)
  end,
  { noremap = true, silent = true })

-- Switch between windows
vim.keymap.set("n", "<C-h>", "<C-w>h")
vim.keymap.set("n", "<C-l>", "<C-w>l")
vim.keymap.set("n", "<C-j>", "<C-w>j")
vim.keymap.set("n", "<C-k>", "<C-w>k")
vim.keymap.set("n", "<C-a>v", ":vsp<CR>")
vim.keymap.set("n", "<C-a>-", ":sp<CR>")

-- Switch between panes
vim.keymap.set("n", "<C-h>", "<cmd>TmuxNavigateLeft<CR>")
vim.keymap.set("n", "<C-l>", "<cmd>TmuxNavigateRight<CR>")
vim.keymap.set("n", "<C-j>", "<cmd>TmuxNavigateDown<CR>")
vim.keymap.set("n", "<C-k>", "<cmd>TmuxNavigateUp<CR>")

-- Color picker
vim.keymap.set("n", "<leader>cc", "<cmd>CccPick<CR>")

-- VimTex
vim.keymap.set("n", "<leader>ll", "<cmd>VimtexCompile<CR>")
vim.keymap.set("n", "<leader>vl", "<cmd>VimtexView<CR>")

-- Screenkey
vim.keymap.set("n", "<leader>sk", "<cmd>Screenkey<CR>")

-- Undotree
vim.cmd("packadd nvim.undotree")
vim.keymap.set("n", "<leader>u", require("undotree").open)

-- Telescope
local lazy_telescope = function()
  if vim.g.telescope_loaded then return end
  vim.g.telescope_loaded = true

  vim.pack.add({
    "https://github.com/nvim-lua/plenary.nvim",
    {
      src = "https://github.com/nvim-telescope/telescope.nvim",
      version = "v0.2.2"
    },
  })

  require("telescope").setup({
    pickers = {
      find_files = {
        hidden = true,
        find_command = { "rg", "--files", "--hidden", "--glob", "!**/.git/**" },
      },
    },
  })
end

vim.keymap.set("n", "<leader>ff", function()
  lazy_telescope()
  vim.cmd("Telescope find_files")
end, {})
vim.keymap.set("n", "<leader>fw", function()
  lazy_telescope()
  vim.cmd("Telescope live_grep")
end, {})
vim.keymap.set("n", "<leader>fo", function()
  lazy_telescope()
  vim.cmd("Telescope buffers")
end, {})
vim.keymap.set("n", "<leader>fh", function()
  lazy_telescope()
  vim.cmd("Telescope help_tags")
end, {})
vim.keymap.set("n", "<leader>fz", function()
  lazy_telescope()
  vim.cmd("Telescope current_buffer_fuzzy_find")
end, {})
vim.keymap.set("n", "<leader>fg", function()
  lazy_telescope()
  vim.cmd("Telescope git_files")
end, {})
vim.keymap.set("n", "<leader>fd", function()
  lazy_telescope()
  vim.cmd("Telescope diagnostics")
end, {})
vim.keymap.set("n", "<leader>ft", function()
  lazy_telescope()
  local telescope = require("telescope.builtin")
  local handle = io.popen("rg 'TODO'")
  if handle == nil then return end
  local result = handle:read("*a")
  handle:close()

  if result:match("[^\r\n]+") == nil then
    local todo_files = {}

    local files_handle = io.popen("rg --files -g 'TODO.{md,txt}'")
    if files_handle == nil then return end
    local files_result = files_handle:read("*a")
    files_handle:close()

    for file in files_result:gmatch("[^\r\n]+") do
      table.insert(todo_files, file)
    end

    if #todo_files > 0 then
      telescope.find_files({
        prompt_title = "Choose TODO file",
        cwd = vim.fn.getcwd(),
        search_dirs = todo_files
      })
    else
      vim.api.nvim_echo({ { "Failed to find any to-dos", "WarningMsg" } }, true, {})
    end
  else
    telescope.grep_string({ search = "TODO" })
  end
end, { noremap = true, silent = true })

-- Diagnostics, LSP
vim.keymap.set("n", "gl", "<cmd>lua vim.diagnostic.open_float()<CR>")
vim.keymap.set("n", "gp", "<cmd>lua vim.diagnostic.jump({ count = -1 })<CR>")
vim.keymap.set("n", "gn", "<cmd>lua vim.diagnostic.jump({ count = 1 })<CR>")

vim.api.nvim_create_autocmd("LspAttach", {
  desc = "LSP actions",
  callback = function(event)
    local opts = { buffer = event.buf }

    vim.keymap.set("n", "gd", "<cmd>lua vim.lsp.buf.definition()<CR>", opts)
    vim.keymap.set("n", "gD", "<cmd>lua vim.lsp.buf.declaration()<CR>", opts)
    vim.keymap.set("n", "go", "<cmd>lua vim.lsp.buf.type_definition()<CR>", opts)
    vim.keymap.set("n", "gs", "<cmd>lua vim.lsp.buf.signature_help()<CR>", opts)
    vim.keymap.set({ "n", "x" }, "<S-f>", "<cmd>lua vim.lsp.buf.format({async = true})<CR>", opts)
    -- u/Blan_11
    vim.keymap.set("n", "<leader>lh", function()
      vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled())
    end, { silent = true, buffer = event.buf })
  end
})