-- Set <space> as the leader key
-- See `:help mapleader`
--  NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
vim.g.mapleader = ' '
vim.g.maplocalleader = ' '

-- Set to true if you have a Nerd Font installed and selected in the terminal
vim.g.have_nerd_font = true

-- [[ Setting options ]]
-- See `:help vim.opt`
-- NOTE: You can change these options as you wish!
--  For more options, you can see `:help option-list`

-- Make line numbers default
vim.opt.number = true
-- You can also add relative line numbers, to help with jumping.
vim.opt.relativenumber = true

-- Табуляция в 4 символа
vim.opt.tabstop = 4
-- vim.opt.shiftwidth = 4

-- Enable mouse mode, can be useful for resizing splits for example!
vim.opt.mouse = 'a'

-- Don't show the mode, since it's already in the status line
vim.opt.showmode = false

-- Sync clipboard between OS and Neovim.
--  Schedule the setting after `UiEnter` because it can increase startup-time.
--  Remove this option if you want your OS clipboard to remain independent.
--  See `:help 'clipboard'`
-- vim.schedule(function()
--     vim.opt.clipboard = 'unnamedplus'
-- end)

-- Use system clipboard via <leader>y/d, but Neovim clipboard via just y/d
vim.keymap.set('n', '<leader>y', '"+y', { desc = '[Y]ank to system clipboard' })
vim.keymap.set('v', '<leader>y', '"+y', { desc = '[Y]ank to system clipboard' })
-- vim.keymap.set('n', '<leader>Y', '"+Y', { desc = '[Y]ank to system clipboard' })
vim.keymap.set('n', '<leader>d', '"_d', { desc = '[D]elete to system clipboard' })
vim.keymap.set('v', '<leader>d', '"_d', { desc = '[D]elete to system clipboard' })

-- Change `K` hover documentation size
vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(vim.lsp.handlers.hover, {
    -- border = 'rounded',
    max_width = 80,
    -- max_height = 15,
})

-- Move lines in visual mode
vim.keymap.set('v', '<A-j>', ":m '>+1<CR>gv=gv")
vim.keymap.set('v', '<A-Down>', ":m '>+1<CR>gv=gv")
vim.keymap.set('v', '<A-k>', ":m '<-2<CR>gv=gv")
vim.keymap.set('v', '<A-Up>', ":m '<-2<CR>gv=gv")

-- Enable break indent
vim.opt.breakindent = true

-- Save undo history
vim.opt.undofile = true

-- Disable swap file
vim.opt.swapfile = false

-- Settings for sessions
vim.o.sessionoptions = 'blank,buffers,curdir,folds,help,tabpages,winsize,winpos,terminal,localoptions'

-- Highlight a vertical line at the specified column to encourage keeping lines within this limit
vim.opt.colorcolumn = '100'

-- Case-insensitive searching UNLESS \C or one or more capital letters in the search term
vim.opt.ignorecase = true
vim.opt.smartcase = true

-- Keep signcolumn on by default
vim.opt.signcolumn = 'yes'

-- Decrease update time
vim.opt.updatetime = 250

-- Decrease mapped sequence wait time
-- Displays which-key popup sooner
vim.opt.timeoutlen = 300

-- Configure how new splits should be opened
vim.opt.splitright = true
vim.opt.splitbelow = true

-- Sets how neovim will display certain whitespace characters in the editor.
--  See `:help 'list'`
--  and `:help 'listchars'`
vim.opt.list = true
vim.opt.listchars = { tab = '» ', trail = '·', nbsp = '␣' }

-- Preview substitutions live, as you type!
vim.opt.inccommand = 'split'

-- Show which line your cursor is on
vim.opt.cursorline = true

-- Minimal number of screen lines to keep above and below the cursor.
vim.opt.scrolloff = 10

-- [[ Basic Keymaps ]]
--  See `:help vim.keymap.set()`

-- Clear highlights on search when pressing <Esc> in normal mode
--  See `:help hlsearch`
vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')

-- Diagnostic keymaps
vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostic [Q]uickfix list' })

-- Exit terminal mode in the builtin terminal with a shortcut that is a bit easier
-- for people to discover. Otherwise, you normally need to press <C-\><C-n>, which
-- is not what someone will guess without a bit more experience.
--
-- NOTE: This won't work in all terminal emulators/tmux/etc. Try your own mapping
-- or just use <C-\><C-n> to exit terminal mode
vim.keymap.set('t', '<Esc><Esc>', '<C-\\><C-n>', { desc = 'Exit terminal mode' })

-- TIP: Disable arrow keys in normal mode
-- vim.keymap.set('n', '<left>', '<cmd>echo "Use h to move!!"<CR>')
-- vim.keymap.set('n', '<right>', '<cmd>echo "Use l to move!!"<CR>')
-- vim.keymap.set('n', '<up>', '<cmd>echo "Use k to move!!"<CR>')
-- vim.keymap.set('n', '<down>', '<cmd>echo "Use j to move!!"<CR>')

-- Keybinds to make split navigation easier.
--  Use CTRL+<hjkl> to switch between windows
--
--  See `:help wincmd` for a list of all window commands
vim.keymap.set('n', '<C-h>', '<C-w><C-h>', { desc = 'Move focus to the left window' })
vim.keymap.set('n', '<C-l>', '<C-w><C-l>', { desc = 'Move focus to the right window' })
vim.keymap.set('n', '<C-j>', '<C-w><C-j>', { desc = 'Move focus to the lower window' })
vim.keymap.set('n', '<C-k>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })
--  Use CTRL+arrows to switch between windows
vim.keymap.set('n', '<C-Left>', '<C-w><C-h>', { desc = 'Move focus to the left window' })
vim.keymap.set('n', '<C-Right>', '<C-w><C-l>', { desc = 'Move focus to the right window' })
vim.keymap.set('n', '<C-Down>', '<C-w><C-j>', { desc = 'Move focus to the lower window' })
vim.keymap.set('n', '<C-Up>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })

-- [[ Basic Autocommands ]]
--  See `:help lua-guide-autocommands`

-- Highlight when yanking (copying) text
--  Try it with `yap` in normal mode
--  See `:help vim.highlight.on_yank()`
vim.api.nvim_create_autocmd('TextYankPost', {
    desc = 'Highlight when yanking (copying) text',
    group = vim.api.nvim_create_augroup('kickstart-highlight-yank', { clear = true }),
    callback = function()
        vim.highlight.on_yank()
    end,
})