local finders = require("telescope.finders")
local previewers = require("telescope.previewers")
local action_state = require("telescope.actions.state")
local conf = require("telescope.config").values
local pickers = require("telescope.pickers")
local actions = require("telescope.actions")
local helpers = require("utils.helpers")

local M = {}

local function paste_titled_link()
	return function(prompt_bufnr)
		actions.close(prompt_bufnr)
		local current_file = vim.fn.expand("%:p")
		local selection = action_state.get_selected_entry()
		local parts = vim.split(selection.value, ":")
		local filename_part = parts[1]
		-- local filename_and_category = vim.split(filename_part, "/")
		local relative_path = helpers.get_relative_path(current_file, filename_part)
		local title = parts[#parts]:match("^%s*(.-)%s*$")
		-- remove `#` from header name if it regular wiki
		title = title:gsub("^%s*#%s*", "")
		relative_path = relative_path:gsub(" ", "%%20")
		local link = "[" .. title .. "](" .. relative_path .. ")"
		vim.api.nvim_put({ link }, "", true, true)
	end
end

--
-- local function paste_link()
-- 	return function(prompt_bufnr)
-- 		actions.close(prompt_bufnr)
-- 		local selection = action_state.get_selected_entry()
--     print(selection.value)
-- 		local filename_part = vim.split(selection.value, ":")[1]
-- 		local link = "[[../" .. filename_part .. "]]"
-- 		vim.api.nvim_put({ link }, "", true, true)
-- 	end
-- end
--
-- M.copy_filename_to_clipboard = function(prompt_bufnr)
-- 	local selection = action_state.get_selected_entry()
-- 	local filename_part = vim.split(selection.value, ":")[1]
-- 	vim.fn.setreg("*", filename_part)
-- 	vim.fn.setreg("+", filename_part)
-- 	print("Copied filename: " .. filename_part)
-- 	actions.close(prompt_bufnr)
-- end

M.search_raw_title = function(opts)
	opts = opts or {}
	local search_dir = opts.search_dir or "."

	pickers
		.new(opts, {
			prompt_title = "Search ETON",
			finder = finders.new_job(function(prompt)
				if not prompt then
					return nil
				end

				-- Adjust the rg command to search for raw_title in all files
				local cmd = {
					"rg",
					"--no-heading",
					"--color=never",
					"--with-filename",
					"--line-number",
					"-i",
					"-m",
					"1",
					"title:.*" .. prompt,
					search_dir,
				}
				if opts.type ~= "zettel" then
					cmd[9] = "^#.*" .. prompt
				end

				return cmd
			end, opts.entry_maker or function(entry)
				local filename, lnum, header

				if opts.type ~= "zettel" then
					filename, lnum, header = entry:match("([^:]+):(%d+):#%s*(.*)")
				else
					filename, lnum, header = entry:match("([^:]+):(%d+):title:(.*)")
				end

				if not filename then
					return nil
				end

				-- Получаем только базовое имя файла
				local basename = filename:match("^.+/(.+)$") or filename

				return {
					value = entry,
					ordinal = basename .. " " .. (header or ""),
					display = basename .. " - " .. (header or ""),
					filename = filename,
					lnum = tonumber(lnum),
				}
			end),
			previewer = previewers.new_buffer_previewer({
				define_preview = function(self, entry, status)
					conf.buffer_previewer_maker(entry.filename, self.state.bufnr, {
						bufname = self.state.bufname,
						winid = self.state.winid,
						preview = self.state.preview,
					})
					-- vim.api.nvim_buf_call(self.state.bufnr, function()
					--   vim.fn.cursor(entry.lnum, 0)
					--   vim.cmd("normal! zz")
					-- end)
				end,
			}),
			sorter = conf.generic_sorter(opts),
			attach_mappings = function(_, map)
				-- map("n", "<c-i>", paste_titled_link())
				-- map("i", "<c-i>", paste_titled_link())
				map("n", "<c-u>", paste_titled_link())
				map("i", "<c-u>", paste_titled_link())
				actions.select_default:replace(function()
					local selection = action_state.get_selected_entry()
					actions.close(_)
					vim.cmd("vsplit " .. selection.filename)
					vim.fn.cursor(selection.lnum, 0)
				end)
				return true
			end,
		})
		:find()
end

-- vim.api.nvim_create_user_command("SearchZettelTitle", function()
-- 	M.search_raw_title({ search_dir = "/Users/fz0x1/Dropbox/TextSync/PKM/00-zettelkasten/" })
-- end, {})
-- mapvimkey("<leader>fm", "SearchZettelTitle", "Search by zettel title")

return M