require('vis')

								-- config --

-- global
vis.events.subscribe(vis.events.INIT, function()
	vis:command("set theme wallust")
end)
-- per-window
vis.events.subscribe(vis.events.WIN_OPEN, function(win)
	-- kdl: no ftdetect entry ships with vis
	if win.file and win.file.name:match('%.kdl$') then win.syntax = 'kdl' end
	vis:command("set tabwidth 2")
	vis:command("set numbers true") vis:command("set relativenumbers true") vis:command("set autoindent true")
	vis:command("set showspaces false")
	vis:command("set showtabs false")
	vis:command("set expandtab on")
	vis:command("set shell /usr/bin/env sh")
	vis:map(vis.modes.VISUAL," y", '"+y"')

	-- system clipboard (wayland) via wl-copy / wl-paste
	local function selected_text()
		local win = vis.window
		local sel = win and win.selection
		if not sel then return nil end
		return sel:save()
	end
	local function to_clipboard(text)
		if not text or #text == 0 then return end
		local p = io.popen("wl-copy", "w")
		if p then p:write(text) p:close() end
	end
	local function from_clipboard()
		local p = io.popen("wl-paste")
		if not p then return end
		local t = p:read("*a")
		p:close()
		return t
	end
	-- super+c (Ctrl+Insert): copy selection
	vis:map(vis.modes.VISUAL, "<C-Insert>", function()
		to_clipboard(selected_text())
	end)
	-- super+x (Shift+Delete): cut = copy selection then delete it
	vis:map(vis.modes.VISUAL, "<S-Delete>", function()
		to_clipboard(selected_text())
		vis:feedkeys("x")
	end)
	-- super+v (Shift+Insert): paste from system clipboard
	vis:map(vis.modes.INSERT, "<S-Insert>", function()
		local t = from_clipboard()
		if t then vis:insert(t) end
	end)
	vis:map(vis.modes.NORMAL, "<S-Insert>", function()
		local t = from_clipboard()
		if t then
			vis:command("set paste on")
			vis:insert(t)
			vis:command("set paste off")
		end
	end)

	vis:map(vis.modes.NORMAL, " fm", function()
		vis:command("open .")
		vis:feedkeys("<C-w>k")
		vis:command("wq!")
	end, "")
end)

								-- plugins --

-- modal
local modal = require('plugins/vis-modal')
-- vis-autoclose
local autoclose = require('plugins/vis-autoclose')
-- colorizer
local colorizer = require('plugins/vis-colorizer')
colorizer.three = false
colorizer.six   = true
	-- complete-filename
	local completefilename = require('plugins/complete-filename')

	-- stray terminal keys: Ctrl/Alt+arrows, Shift+Enter
	local nop = function() end
	for _, mode in ipairs({vis.modes.NORMAL, vis.modes.VISUAL, vis.modes.OPERATOR_PENDING}) do
		vis:map(mode, "<C-Left>", "b")
		vis:map(mode, "<C-Right>", "w")
		vis:map(mode, "<M-Left>", "b")
		vis:map(mode, "<M-Right>", "w")
		vis:map(mode, "<M-Up>", "<vis-nop>")
		vis:map(mode, "<M-Down>", "<vis-nop>")
		vis:map(mode, "<S-Enter>", "<Enter>")
	end
	for _, mode in ipairs({vis.modes.INSERT, vis.modes.REPLACE, vis.modes.PROMPT}) do
		vis:map(mode, "<C-Left>", nop)
		vis:map(mode, "<C-Right>", nop)
		vis:map(mode, "<M-Left>", nop)
		vis:map(mode, "<M-Right>", nop)
		vis:map(mode, "<M-Up>", nop)
		vis:map(mode, "<M-Down>", nop)
		vis:map(mode, "<S-Enter>", "<Enter>")
	end

	-- russian layout: use QWERTY motions while Ru is active (normal/visual modes)
	local ru_en = {
		q="й", w="ц", e="у", r="к", t="е", y="н", u="г", i="ш", o="щ", p="з",
		["["]="х", ["]"]="ъ",
		a="ф", s="ы", d="в", f="а", g="п", h="р", j="о", k="л", l="д",
		[";"]="ж", ["'"]="э",
		z="я", x="ч", c="с", v="м", b="и", n="т", m="ь",
		[","]="б", ["."]="ю",
	}
	local upper_ru = {
		["Й"]="Q", ["Ц"]="W", ["У"]="E", ["К"]="R", ["Е"]="T", ["Н"]="Y", ["Г"]="U", ["Ш"]="I", ["Щ"]="O", ["З"]="P",
		["Х"]="[", ["Ъ"]="]",
		["Ф"]="A", ["Ы"]="S", ["В"]="D", ["А"]="F", ["П"]="G", ["Р"]="H", ["О"]="J", ["Л"]="K", ["Д"]="L",
		["Ж"]=";", ["Э"]="'",
		["Я"]="Z", ["Ч"]="X", ["С"]="C", ["М"]="V", ["И"]="B", ["Т"]="N", ["Ь"]="M",
		["Б"]=",", ["Ю"]=".",
	}
	for _, mode in ipairs({vis.modes.NORMAL, vis.modes.VISUAL, vis.modes.OPERATOR_PENDING}) do
		for en, ru in pairs(ru_en) do
			vis:map(mode, ru, en)
		end
		for ru, en in pairs(upper_ru) do
			vis:map(mode, ru, en)
		end
	end
-- vis-lspc
local lsp = require('plugins/vis-lspc')
--lsp.ls_map.clangd = {
--	formatting_options = {tabSize = 2, insertSpaces = false}
--}
lsp.ls_map.lua = {
	name = 'lua-language-server',
	cmd = 'lua-language-server',
	settings = {
		Lua = {diagnostics = { globals = {'vis'}}, telemetry = {enable = false}},
	},
	formatting_options = {tabSize = 2, insertSpaces = true},
}
-- python via pyright (npm) instead of pylsp
lsp.ls_map.python = {
	name = 'pyright-langserver',
	cmd = 'pyright-langserver --stdio',
	roots = {'pyproject.toml', 'setup.py', 'requirements.txt'},
}
-- markdown via marksman
lsp.ls_map.markdown = {
	name = 'marksman',
	cmd = 'marksman',
}
-- yaml (not preconfigured by vis-lspc)
lsp.ls_map.yaml = {
	name = 'yaml-language-server',
	cmd = 'yaml-language-server --stdio',
}
-- dockerfile (not preconfigured by vis-lspc)
lsp.ls_map.dockerfile = {
	name = 'docker-langserver',
	cmd = 'docker-langserver --stdio',
}

-- gq: format buffer with the active language server
vis:map(vis.modes.NORMAL, ' gq', function()
	vis:command('lspc-format')
end, 'LSP format')