local M = {}

-- Shorten function names
local actions = require("telescope.actions")
local fb_actions = require("telescope").extensions.file_browser.actions
--local builtin = require("telescope.builtin")
--local themes = require("telescope.themes")
--local utils = require("telescope.utils")
--local action_state = require("telescope.actions.state")
--local layout_actions = require("telescope.actions.layout")
--local pickers = require("telescope.pickers")

require('telescope').setup({
  defaults = {
    vimgrep_arguments = {
      "rg",
      "--color=never",
      "--no-heading",
      "--with-filename",
      "--line-number",
      "--column",
      "--smart-case",
      "--hidden",
      "--fixed-strings",
      "--trim",
    },
    prompt_prefix = " ",
    selection_caret = " ",
    entry_prefix = "  ",
    path_display = { "tail" },
    --path_display = { "truncate" },
    --path_display = { "smart" },
    file_ignore_patterns = {
      "packer_compiled.lua",
      "%.DS_Store",
      "%.git/",
      "%.spl",
      --"%.log",
      "%[No Name%]", -- new files / sometimes folders (netrw)
      "/$",          -- ignore folders (netrw)
      "node_modules",
      "%.png",
      "%.zip",
      "%.pxd",
      "^.vim/",
      "^.local/",
      "^.cache/",
      "^downloads/",
      "^music/",
      --"^node_modules/",
      --"^undodir/",
    },
    mappings = {
      i = {
        ["<C-n>"] = actions.cycle_history_next,
        ["<C-p>"] = actions.cycle_history_prev,

        ["<C-j>"] = actions.move_selection_next,
        ["<C-k>"] = actions.move_selection_previous,

        --["<C-c>"] = actions.close,
        ["<Esc>"] = actions.close, -- close w/ one esc
        --["<Esc>"] = "close", -- close w/ one esc
        ["<?>"] = actions.which_key, -- keys from pressing <C-/>

        ["<Down>"] = actions.move_selection_next,
        ["<Up>"] = actions.move_selection_previous,

        ["<CR>"] = actions.select_default,
        ["<C-x>"] = actions.select_horizontal,
        ["<C-y>"] = actions.select_vertical,
        ["<C-t>"] = actions.select_tab,

        ["<C-u>"] = actions.preview_scrolling_up,
        ["<C-d>"] = actions.preview_scrolling_down,

        ["<PageUp>"] = actions.results_scrolling_up,
        ["<PageDown>"] = actions.results_scrolling_down,

        ["<Tab>"] = actions.toggle_selection + actions.move_selection_worse,
        ["<S-Tab>"] = actions.toggle_selection + actions.move_selection_better,
        ["<C-q>"] = actions.send_to_qflist + actions.open_qflist,
        ["<M-q>"] = actions.send_selected_to_qflist + actions.open_qflist,
        ["<C-l>"] = actions.complete_tag,
        ["<C-_>"] = actions.which_key, -- keys from pressing <C-/>
        --["<C-o>"] = function(prompt_bufnr)
        --	local selection = require("telescope.actions.state").get_selected_entry()
        --	local dir = vim.fn.fnamemodify(selection.path, ":p:h")
        --	require("telescope.actions").close(prompt_bufnr)
        --	-- Depending on what you want put `cd`, `lcd`, `tcd`
        --	vim.cmd(string.format("silent lcd %s", dir))
        --end,
      },

      n = {
        ["<esc>"] = actions.close,
        ["<q>"] = actions.close,
        ["<CR>"] = actions.select_default,
        ["<C-x>"] = actions.select_horizontal,
        ["<C-y>"] = actions.select_vertical,
        ["<C-t>"] = actions.select_tab,

        ["<Tab>"] = actions.toggle_selection + actions.move_selection_worse,
        ["<S-Tab>"] = actions.toggle_selection + actions.move_selection_better,
        ["<C-q>"] = actions.send_to_qflist + actions.open_qflist,
        ["<M-q>"] = actions.send_selected_to_qflist + actions.open_qflist,

        ["j"] = actions.move_selection_next,
        ["k"] = actions.move_selection_previous,
        ["H"] = actions.move_to_top,
        ["M"] = actions.move_to_middle,
        ["L"] = actions.move_to_bottom,

        ["<Down>"] = actions.move_selection_next,
        ["<Up>"] = actions.move_selection_previous,
        ["gg"] = actions.move_to_top,
        ["G"] = actions.move_to_bottom,

        ["<C-u>"] = actions.preview_scrolling_up,
        ["<C-d>"] = actions.preview_scrolling_down,

        ["<PageUp>"] = actions.results_scrolling_up,
        ["<PageDown>"] = actions.results_scrolling_down,

        ["?"] = actions.which_key,
        --["<C-o>"] = function(prompt_bufnr)
        --	local selection = require("telescope.actions.state").get_selected_entry()
        --	local dir = vim.fn.fnamemodify(selection.path, ":p:h")
        --	require("telescope.actions").close(prompt_bufnr)
        --	-- Depending on what you want put `cd`, `lcd`, `tcd`
        --	vim.cmd(string.format("silent lcd %s", dir))
        --end,
      },
    },
  },
  preview = {
    filesize_limit = 3,
    timeout = 250,
  },
  selection_strategy = "reset",
  sorting_strategy = "ascending",
  scroll_strategy = "limit",
  color_devicons = true,
  layout_strategy = 'horizontal',
  layout_config = {
    horizontal = {
      height = 0.95,
      preview_cutoff = 70,
      width = 0.92,
      preview_width = { 0.55, max = 50 }
    },
    bottom_pane = {
      height = 12,
      preview_cutoff = 70,
      prompt_position = "bottom",
    },
  },
  --pickers = {
  --  live_grep = {
  --    disable_coordinates = true,
  --    layout_config = {
  --      horizontal = {
  --        preview_width = 0.55,
  --      },
  --    },
  --  },
  --},
  --pickers = {
  --lsp_references = {
  --	prompt_prefix='⬅️',
  --	show_line=false,
  --	trim_text=true,
  --	include_declaration=false,
  --	initial_mode = "normal",
  --},
  --lsp_definitions = {
  --	prompt_prefix='➡️',
  --	show_line=false,
  --	trim_text=true,
  --	initial_mode = "normal",
  --},
  --lsp_document_symbols = {
  --	prompt_prefix='* ',
  --	show_line = false,
  --},
  --treesitter = {
  --	prompt_prefix=' ',
  --	show_line = false,
  --},
  --find_files = {
  --	cwd='%:p:h',
  --	prompt_prefix=' ',
  --	hidden = true,
  --	follow = true,
  --},
  --keymaps = { prompt_prefix='? ' },
  --oldfiles = { prompt_prefix=' ' },
  --highlights = { prompt_prefix=' ' },
  --git_files = {
  --	prompt_prefix=' ',
  --	show_untracked = true,
  --	path_display = { "tail" },
  --},
  --buffers = {
  --	prompt_prefix=' ',
  --	ignore_current_buffer = true,
  --	initial_mode = "normal",
  --	sort_mru = true,
  --},
  --live_grep = {
  --	cwd='%:p:h',
  --	disable_coordinates=true,
  --	prompt_title='Search in Folder',
  --	prompt_prefix=' ',
  --},
  --spell_suggest = {
  --	initial_mode = "normal",
  --	prompt_prefix = "暈",
  --	theme = "cursor",
  --	layout_config = { cursor = { width = 0.3 } }
  --},
  --colorscheme = {
  --	enable_preview = true,
  --	prompt_prefix = '',
  --	results_title = '',
  --	layout_strategy = "bottom_pane",
  --},
  --},

  extensions = {
    file_browser = {
      theme = "dropdown",
      -- disables netrw and use telescope-file-browser in its place
      hijack_netrw = true,
      mappings = {
        -- your custom insert mode mappings
        ["i"] = {
          ["<C-w>"] = function()
            vim.cmd("normal vbd")
          end,
          --["<C-h>"] = fb_actions.goto_parent_dir,
        },
        ["n"] = {
          -- your custom normal mode mappings
          ["N"] = fb_actions.create,
          --["<C-h>"] = fb_actions.goto_parent_dir,
          --["/"] = function()
          --	vim.cmd("startinsert")
          --end,
        },
      },
    },
  },
})

--------------------------------------------------------------------------------

-- Load extensions:
-- have to be loaded after telescope setup/config
require('telescope').load_extension('fzf')
require('telescope').load_extension('ui-select')
require("telescope").load_extension("file_browser")
require('telescope').load_extension('changed_files')
require('telescope').load_extension('media_files')
--require('telescope').extensions.notify.notify()
require('telescope').load_extension('notify')
require('telescope').load_extension('dap')
require("telescope").load_extension("session-lens")

function M.find_configs()
  require("telescope.builtin").find_files {
    hidden = true,
    no_ignore = false,
    prompt_title = " Find Configs",
    results_title = "Config Files",
    path_display = { "smart" },
    search_dirs = {
      "~/.config/nvim",
      "~/.config/zsh",
      "~/.config/tmux",
      "~/.config/X11",
      "~/.config/alacritty",
      "~/.config/kitty",
      "~/.config/wezterm",
      "~/.config/bspwm",
      "~/.config/sxhkd",
      "~/.config/picom",
      "~/.bashrc",
      "~/.ssh",
      "~/.vim",
    },
    -- cwd = "~/.config/nvim/",
    file_ignore_patterns = {
      "~/.config/nvim/startup.log",
      "packer_compiled.lua",
      "resurrect",
      "tmux/plugins",
      --"^~/.config/tmux/plugins",
      "%.txt",
      ".git",
      "autoload/plugged",
      "plug.vim",
    },
    layout_strategy = "horizontal",
    layout_config = { preview_width = 0.65, width = 0.75 },
  }
end

function M.find_scripts()
  require("telescope.builtin").find_files {
    hidden = true,
    no_ignore = true,
    prompt_title = " Find Scripts",
    path_display = { "smart" },
    search_dirs = {
      "~/.local/bin/scripts",
    },
    layout_strategy = "horizontal",
    layout_config = { preview_width = 0.65, width = 0.75 },
  }
end

function M.find_projects()
  require("telescope.builtin").find_files {
    hidden = true,
    no_ignore = true,
    prompt_title = " Find Projects",
    path_display = { "smart" },
    search_dirs = {
      "~/projects",
    },
    layout_strategy = "horizontal",
    layout_config = { preview_width = 0.65, width = 0.75 },
  }
end

function M.grep_notes()
  local opts = {}
  opts.hidden = false
  opts.search_dirs = {
    "~/documents/notes/",
  }
  opts.prompt_prefix = "   "
  opts.prompt_title = " Grep Notes"
  opts.path_display = { "smart" }
  require("telescope.builtin").live_grep(opts)
end

function M.find_notes()
  require("telescope.builtin").find_files {
    hidden = false,
    prompt_title = " Find Notes",
    path_display = { "smart" },
    search_dirs = {
      "~/documents/notes/private/",
      "~/documents/notes",
    },
    --cwd = "~documents/notes",
    layout_strategy = "horizontal",
    layout_config = { preview_width = 0.65, width = 0.75 },
  }
end

function M.file_explorer()
  require("telescope.builtin").file_browser({
    prompt_title = "File Browser",
    cwd = "~",
    layout_strategy = "horizontal",
  })
end

function M.grep_current_dir()
  local buffer_dir = require("telescope.utils").buffer_dir()
  local opts = {
    prompt_title = "Live Grep in " .. buffer_dir,
    cwd = buffer_dir,
  }
  require("telescope.builtin").live_grep(opts)
end

--------------------------------------------------------------------------------

local dropdown = require('telescope.themes').get_dropdown({
  hidden = true,
  no_ignore = true,
  previewer = false,
  prompt_title = '',
  preview_title = '',
  results_title = '',
  layout_config = {
    --anchor = "S",
    prompt_position = 'top'
  },
})

-- File browser always relative to buffer
local opts_file_browser = vim.tbl_extend('force', dropdown, {
  path_display = { '%:p:h' },
})

-- Set current folder as prompt title
local with_title = function(opts, extra)
  extra = extra or {}
  local path = opts.cwd or opts.path or extra.cwd or extra.path or nil
  local title = ''
  local buf_path = vim.fn.expand('%:p:h')
  local cwd = vim.fn.getcwd()
  if path ~= nil and buf_path ~= cwd then
    title = require('plenary.path'):new(buf_path):make_relative(cwd)
  else
    title = vim.fn.fnamemodify(cwd, ':t')
  end

  return vim.tbl_extend('force', opts, {
    prompt_title = title
  }, extra or {})
end

----vim.api.nvim_create_augroup('startup', { clear = true })
----vim.api.nvim_command('augroup startup')
----vim.api.nvim_command('autocmd!')
----vim.api.nvim_command('autocmd VimEnter * lua require("plugins/telescope").startup()')
----vim.api.nvim_command('augroup END')
--
--
--local startup = function()
--  -- Open file browser if argument is a folder
--  local arg = vim.api.nvim_eval('argv(0)')
--  if arg and (vim.fn.isdirectory(arg) ~= 0 or arg == "") then
--    vim.defer_fn(function()
--      require('telescope.builtin').find_files(with_title(dropdown))
----      require'telescope.builtin'.find_files(require('telescope.themes').get_dropdown({
----        hidden = true,
----        results_title = '',
----        layout_config = { prompt_position = 'top' },
----      }))
--    end, 10)
--  end
--end
--
--
--
---- Define the custom command startup/findhere
--vim.cmd('command! Startup lua require("plugins.telescope").startup()')
--vim.cmd('command! Findhere lua require("plugins.telescope").startup()')
--
----vim.api.nvim_command('autocmd VimEnter * lua require("plugins/telescope").startup()')
--
---- Merge the existing M table with the startup function table
--M = vim.tbl_extend('force', M, { startup = startup })

return M