-- lazy.nvim
{
	"chrisgrieser/nvim-various-textobjs",
	event = "UIEnter",
	opts = { useDefaultKeymaps = true },
},

-- packer
use {
	"chrisgrieser/nvim-various-textobjs",
	config = function () 
		require("various-textobjs").setup({ useDefaultKeymaps = true })
	end,
}

-- lazy.nvim
{
	"chrisgrieser/nvim-various-textobjs",
	lazy = true,
	keys = {
		-- ...
	},
},

-- packer
use { "chrisgrieser/nvim-various-textobjs" }

-- default config
require("various-textobjs").setup {
	-- set to 0 to only look in the current line
	lookForwardSmall = 5,
	lookForwardBig = 15,

	-- use suggested keymaps (see overview table in README)
	useDefaultKeymaps = false,

	-- disable only some default keymaps, e.g. { "ai", "ii" }
	disabledKeymaps = {},

	-- display notification if a text object is not found
	notifyNotFound = true,
}

-- example: `U` for url textobj
vim.keymap.set({ "o", "x" }, "U", '<cmd>lua require("various-textobjs").url()<CR>')

-- example: `as` for outer subword, `is` for inner subword
vim.keymap.set({ "o", "x" }, "as", '<cmd>lua require("various-textobjs").subword("outer")<CR>')
vim.keymap.set({ "o", "x" }, "is", '<cmd>lua require("various-textobjs").subword("inner")<CR>')

-- 1. THE INDENTATION TEXTOBJ requires two parameters, the first for
-- exclusion of the starting border, the second for the exclusion of ending border
vim.keymap.set(
	{ "o", "x" },
	"ii",
	'<cmd>lua require("various-textobjs").indentation("inner", "inner")<CR>'
)
vim.keymap.set(
	{ "o", "x" },
	"ai",
	'<cmd>lua require("various-textobjs").indentation("outer", "inner")<CR>'
)

-- an additional parameter can be passed to control whether blank lines are included
vim.keymap.set(
	{ "o", "x" },
	"ai",
	'<cmd>lua require("various-textobjs").indentation("outer", "inner", "noBlanks")<CR>'
)

-- 2. THE DIAGNOSTIC TEXTOBJ accepts `"wrap"` or `"nowrap"`
vim.keymap.set({ "o", "x" }, "!", '<cmd>lua require("various-textobjs").diagnostic("wrap")<CR>')

-- when on unindented line, `ii` should select entire buffer
vim.keymap.set("o", "ii", function()
	if vim.fn.indent(".") == 0 then
		require("various-textobjs").entireBuffer()
	else
		require("various-textobjs").indentation("inner", "inner")
	end
end)

vim.keymap.set("n", "gx", function()
	-- select URL
	require("various-textobjs").url()

	-- plugin only switches to visual mode when textobj is found
	local foundURL = vim.fn.mode():find("v")
	if not foundURL then return end

	-- retrieve URL with the z-register as intermediary
	vim.cmd.normal { '"zy', bang = true }
	local url = vim.fn.getreg("z")
	vim.ui.open(url) -- requires nvim 0.10
end, { desc = "URL Opener" })

vim.keymap.set("n", "gx", function()
	require("various-textobjs").url()
	local foundURL = vim.fn.mode():find("v")
	if foundURL then
		vim.cmd.normal('"zy')
		local url = vim.fn.getreg("z")
		vim.ui.open(url)
	else
		-- find all URLs in buffer
		local urlPattern = require("various-textobjs.charwise-textobjs").urlPattern
		local bufText = table.concat(vim.api.nvim_buf_get_lines(0, 0, -1, false), "\n")
		local urls = {}
		for url in bufText:gmatch(urlPattern) do
			table.insert(urls, url)
		end
		if #urls == 0 then return end

		-- select one, use a plugin like dressing.nvim for nicer UI for
		-- `vim.ui.select`
		vim.ui.select(urls, { prompt = "Select URL:" }, function(choice)
			if choice then vim.ui.open(choice) end
		end)
	end
end, { desc = "URL Opener" })

-- before
if foo then
	print("bar") -- <- cursor is on this line
	print("baz")
end

-- after
print("bar")
print("baz")

vim.keymap.set("n", "dsi", function()
	-- select outer indentation
	require("various-textobjs").indentation("outer", "outer")

	-- plugin only switches to visual mode when a textobj has been found
	local indentationFound = vim.fn.mode():find("V")
	if not indentationFound then return end

	-- dedent indentation
	vim.cmd.normal { "<", bang = true }

	-- delete surrounding lines
	local endBorderLn = vim.api.nvim_buf_get_mark(0, ">")[1]
	local startBorderLn = vim.api.nvim_buf_get_mark(0, "<")[1]
	vim.cmd(tostring(endBorderLn) .. " delete") -- delete end first so line index is not shifted
	vim.cmd(tostring(startBorderLn) .. " delete")
end, { desc = "Delete Surrounding Indentation" })

vim.keymap.set("n", "ysii", function()
	local startPos = vim.api.nvim_win_get_cursor(0)

	-- identify start- and end-border
	require("various-textobjs").indentation("outer", "outer")
	local indentationFound = vim.fn.mode():find("V")
	if not indentationFound then return end
	vim.cmd.normal { "V", bang = true } -- leave visual mode so the '< '> marks are set

	-- copy them into the + register
	local startLn = vim.api.nvim_buf_get_mark(0, "<")[1] - 1
	local endLn = vim.api.nvim_buf_get_mark(0, ">")[1] - 1
	local startLine = vim.api.nvim_buf_get_lines(0, startLn, startLn + 1, false)[1]
	local endLine = vim.api.nvim_buf_get_lines(0, endLn, endLn + 1, false)[1]
	vim.fn.setreg("+", startLine .. "\n" .. endLine .. "\n")

	-- highlight yanked text
	local ns = vim.api.nvim_create_namespace("ysi")
	vim.api.nvim_buf_add_highlight(0, ns, "IncSearch", startLn, 0, -1)
	vim.api.nvim_buf_add_highlight(0, ns, "IncSearch", endLn, 0, -1)
	vim.defer_fn(function() vim.api.nvim_buf_clear_namespace(0, ns, 0, -1) end, 1000)

	-- restore cursor position
	vim.api.nvim_win_set_cursor(0, startPos)
end, { desc = "Yank surrounding indentation" })

vim.keymap.set("n", "P", function()
	require("various-textobjs").lastChange()
	local changeFound = vim.fn.mode():find("v")
	if changeFound then vim.cmd.normal { ">", bang = true } end
end