local map = vim.api.nvim_set_keymap
local kmap = vim.keymap.set

-- Базовые настройки навигации --
map("n", "<Space>", "<Nop>", { noremap = true, silent = true })

-- Навигация в начало/конец строки
map("n", "<Home>", "^", { noremap = true, silent = true })
map("n", "<End>", "$", { noremap = true, silent = true })
map("v", "<Home>", "^", { noremap = true, silent = true })
map("v", "<End>", "$", { noremap = true, silent = true })
map("i", "<Home>", "<C-o>^", { noremap = true, silent = true })
map("i", "<End>", "<C-o>$", { noremap = true, silent = true })

-- Фикс для визуального режима
map("v", "i", "<S-i>", { noremap = true, silent = true })
map("v", "a", "<S-a>", { noremap = true, silent = true })
map("v", "J", ":m '>+1<CR>gv=gv", { noremap = true, silent = true })
map("v", "K", ":m '<-2<CR>gv=gv", { noremap = true, silent = true })
map("v", "<", "<gv", { noremap = true, silent = true })
map("v", ">", ">gv", { noremap = true, silent = true })

-- Управление буферами --
kmap("n", "<leader>bn", "<cmd>bnext<CR>", { noremap = true, silent = true, desc = "Next buffer" })
kmap("n", "<leader>bp", "<cmd>bprevious<CR>", { noremap = true, silent = true, desc = "Previous buffer" })
kmap("n", "<leader>bd", "<cmd>bdelete<CR>", { noremap = true, silent = true, desc = "Delete buffer" })
kmap("n", "<leader>w", "<cmd>wa<CR>", { noremap = true, silent = true, desc = "Save all files" })
kmap("n", "qq", "<cmd>q<CR>", { noremap = true, silent = true, desc = "Exit" })
kmap("n", "<leader>vs", "<cmd>vsplit<CR>", { noremap = true, silent = true, desc = "Vertical split" })

-- Управление вкладками --
kmap("n", "<A-Right>", ":tabnext<CR>", { noremap = true, silent = true, desc = "Next tab" })
kmap("n", "<A-Left>", ":tabprevious<CR>", { noremap = true, silent = true, desc = "Previous tab" })
kmap("n", "<leader>tn", ":tabnew<CR>", { noremap = true, silent = true, desc = "New tab" })
kmap("n", "<leader>tc", ":tabclose<CR>", { noremap = true, silent = true, desc = "Close tab" })

-- Быстрый переход по вкладкам --
for i = 1, 9 do
	kmap("n", "<A-" .. i .. ">", ":tabn " .. i .. "<CR>", { noremap = true, silent = true, desc = "Go to tab " .. i })
end

-- Файловый менеджер --
kmap("n", "<F3>", ":NvimTreeToggle<CR>", { noremap = true, silent = true, desc = "Toggle file tree" })
-- kmap("n", "<leader>tt", ":NvimTreeToggle<CR>", { noremap = true, silent = true, desc = "Toggle file tree" })

kmap("n", "<leader>tt", ":split<CR>:terminal<CR>:startinsert<CR>", { noremap = true, silent = true })

-- Поиск с Telescope --
kmap("n", "<leader>ff", "<cmd>Telescope find_files<CR>", { noremap = true, silent = true, desc = "Find files" })
kmap("n", "<leader>fg", "<cmd>Telescope live_grep<CR>", { noremap = true, silent = true, desc = "Live grep" })
kmap("n", "<leader>fb", "<cmd>Telescope buffers<CR>", { noremap = true, silent = true, desc = "Find buffers" })
kmap("n", "<leader>fe", "<cmd>Telescope file_browser<CR>", { noremap = true, silent = true, desc = "File browser" })

-- LSP функции --
kmap("n", "<leader>e", vim.diagnostic.open_float, { noremap = true, silent = true, desc = "Show diagnostics" })
kmap("n", "d[", vim.diagnostic.goto_prev, { noremap = true, silent = true, desc = "Previous diagnostic" })
kmap("n", "d]", vim.diagnostic.goto_next, { noremap = true, silent = true, desc = "Next diagnostic" })

kmap("n", "gD", vim.lsp.buf.declaration, { noremap = true, silent = true, desc = "Go to declaration" })
kmap("n", "gd", vim.lsp.buf.definition, { noremap = true, silent = true, desc = "Go to definition" })
kmap("n", "K", vim.lsp.buf.hover, { noremap = true, silent = true, desc = "Show documentation" })
kmap("n", "gi", vim.lsp.buf.implementation, { noremap = true, silent = true, desc = "Go to implementation" })
kmap("n", "<C-k>", vim.lsp.buf.signature_help, { noremap = true, silent = true, desc = "Signature help" })
kmap(
	"n",
	"<leader>wa",
	vim.lsp.buf.add_workspace_folder,
	{ noremap = true, silent = true, desc = "Add workspace folder" }
)
kmap(
	"n",
	"<leader>wr",
	vim.lsp.buf.remove_workspace_folder,
	{ noremap = true, silent = true, desc = "Remove workspace folder" }
)
kmap("n", "<leader>wl", function()
	print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
end, { noremap = true, silent = true, desc = "List workspace folders" })
kmap("n", "<leader>D", vim.lsp.buf.type_definition, { noremap = true, silent = true, desc = "Type definition" })
kmap("n", "<leader>rn", vim.lsp.buf.rename, { noremap = true, silent = true, desc = "Rename symbol" })
kmap("n", "<leader>ca", vim.lsp.buf.code_action, { noremap = true, silent = true, desc = "Code actions" })
kmap("n", "gr", vim.lsp.buf.references, { noremap = true, silent = true, desc = "Find references" })

-- Отладка (DAP) --
kmap("n", "<F9>", "<cmd>lua require'dapui'.toggle()<CR>", { noremap = true, silent = true, desc = "Toggle debug UI" })
kmap("n", "<F5>", function()
	require("dap").continue()
end)
kmap("n", "<F10>", function()
	require("dap").step_over()
end)
kmap("n", "<F11>", function()
	require("dap").step_into()
end)
kmap("n", "<F12>", function()
	require("dap").step_out()
end)
kmap(
	"n",
	"<leader>dt",
	"<cmd>lua require'dapui'.toggle()<CR>",
	{ noremap = true, silent = true, desc = "Toggle debug UI" }
)
kmap("n", "<leader>dc", function()
	require("dap").continue()
end)
kmap("n", "<leader>so", function()
	require("dap").step_over()
end)
kmap("n", "<leader>si", function()
	require("dap").step_into()
end)
kmap("n", "<leader>st", function()
	require("dap").step_out()
end)

kmap("n", "<Leader>b", function()
	require("dap").toggle_breakpoint()
end)
kmap("n", "<Leader>B", function()
	require("dap").set_breakpoint()
end)
kmap("n", "<Leader>lp", function()
	require("dap").set_breakpoint(nil, nil, vim.fn.input("Log point message: "))
end)
kmap("n", "<Leader>dr", function()
	require("dap").repl.open()
end)
kmap("n", "<Leader>dl", function()
	require("dap").run_last()
end)
kmap({ "n", "v" }, "<Leader>dh", function()
	require("dap.ui.widgets").hover()
end)
kmap({ "n", "v" }, "<Leader>dp", function()
	require("dap.ui.widgets").preview()
end)
kmap("n", "<Leader>df", function()
	local widgets = require("dap.ui.widgets")
	widgets.centered_float(widgets.frames)
end)
kmap("n", "<Leader>ds", function()
	local widgets = require("dap.ui.widgets")
	widgets.centered_float(widgets.scopes)
end)

-- Кастомная функция для NvimTree --
local function change_root_to_global_cwd()
	local api = require("nvim-tree.api")
	local global_cwd = vim.fn.getcwd(-1, -1)
	api.tree.change_root(global_cwd)
end

kmap("n", "<C-c>", change_root_to_global_cwd, { noremap = true, silent = true, desc = "Change tree root to CWD" })