-- Personal keymaps (plugin-agnostic). Plugin-bound keys live in their specs.

local function map(mode, lhs, rhs, opts)
    local options = { noremap = true, silent = true }
    if opts then
        options = vim.tbl_extend('force', options, opts)
    end
    vim.keymap.set(mode, lhs, rhs, options)
end

local function no(lhs, rhs) map('n', lhs, rhs, { silent = false }) end
local function no_s(lhs, rhs) map('n', lhs, rhs) end
local function no_r(lhs, rhs) map('n', lhs, rhs, { noremap = false, silent = false }) end
local function i(lhs, rhs) map('i', lhs, rhs, { silent = false }) end
local function i_s(lhs, rhs) map('i', lhs, rhs) end
local function v_s(lhs, rhs) map('v', lhs, rhs) end

-- disable arrow keys and middle-click (muscle memory from the old config)
no_s('<up>', '<nop>')
no_s('<down>', '<nop>')
no_s('<left>', '<nop>')
no_s('<right>', '<nop>')
no_s('<c-left>', '<nop>')
no_s('<c-right>', '<nop>')
v_s('<up>', '<nop>')
v_s('<down>', '<nop>')
v_s('<left>', '<nop>')
v_s('<right>', '<nop>')
v_s('<c-left>', '<nop>')
v_s('<c-right>', '<nop>')

-- escape from insert mode on home-row bigrams
i_s('jj', '<esc>')
i_s('jk', '<esc>')
i_s('kj', '<esc>')
i_s('чя', '<esc>')

i_s('<esc>', '<nop>')
i_s('<C-c>', '<nop>')

-- bracket-return expansions: open a line between the delimiters, indented
i('[<CR>', '[<CR>]<Esc>O<BS><Tab>')
i('{<CR>', '{<CR>}<Esc>O<BS><Tab>')
i('(<CR>', '(<CR>)<Esc>O<BS><Tab>')

vim.keymap.set({ 'n', 'i', 'v' }, '<LeftMouse>', '<nop>')

-- Russian-layout fixes: `ж` types `:`, `W`/`E`/`w'` expand in cmdline
no_r('ж', ':')
vim.cmd.cnoreabbrev({ "<expr> W", "((getcmdtype() is# ':' && getcmdline() is# 'W')?('w'):('W'))" })
vim.cmd.cnoreabbrev({ "<expr> E", "((getcmdtype() is# ':' && getcmdline() is# 'E')?('e'):('E'))" })
vim.cmd.cnoreabbrev({ "<expr> w'", "(getcmdtype() == \":\" && getcmdline() == \"w'\" ? \"w\" : \"w'\")" })