local u = require "config.utils"

-- colemak-dh
local h = "n"
local j = "e"
local k = "i"
local l = "o"

local m = u.mapping

-- terminal
m.map("t", "<esc>", "<C-\\><C-n>")
m.map("t", "<tab>", "<tab>")
m.map("t", "<C-" .. h .. ">", "<C-\\><C-n><C-w>h")
m.map("t", "<C-" .. j .. ">", "<C-\\><C-n><C-w>j")
m.map("t", "<C-" .. k .. ">", "<C-\\><C-n><C-w>k")
m.map("t", "<C-" .. l .. ">", "<C-\\><C-n><C-w>l")
m.nmap("<leader>tm", m.fcmds({
    "belowright 7sp",
    "term",
    "setlocal nonu",
    "setlocal scl=no",
}))
local prev_buf = ""
m.nmap("<leader>i", function()
    if(vim.fn.bufname("terminal") == "") then
        prev_buf = vim.fn.getreg("#")
        vim.cmd("term")
        vim.cmd("setlocal nonu")
        vim.cmd("setlocal scl=no")
        vim.cmd("keepalt file terminal")
        vim.fn.feedkeys("A")
    else
        if(vim.fn.bufname() == "terminal") then
            vim.cmd("b #")
            if (string.len(prev_buf) ~= 0) then
                vim.fn.setreg("#", prev_buf)
            end
        else
            prev_buf = vim.fn.getreg("#")
            vim.cmd("b terminal")
            vim.fn.feedkeys("A")
        end
    end
end)

-- move window to new tab
m.nmap("<leader>tt", "<C-W><S-T>")

-- off search highlight when escape is pressed
m.nmap("<esc>", "<cmd>noh<cr><esc>")

-- spell checking
m.cmd("<leader>spl", "setlocal spell spelllang=en_us")
m.cmd("<leader>spL", "setlocal nospell")

-- lsp
m.nmap("E", vim.diagnostic.open_float)
m.nmap("[d", vim.diagnostic.goto_prev)
m.nmap("]d", vim.diagnostic.goto_next)
m.nmap("<leader>q", vim.diagnostic.setloclist)

-- "alt tab"
m.nmap("<leader>n", "<C-6>")

-- layout stuff
local lo = u.layout
lo.swap(h, "h")
lo.swap(j, "j")
lo.swap(k, "k")
lo.swap(l, "l")
lo.map(j, "gj")
lo.map(k, "gk")

lo.swap(h:upper(), "H")
lo.swap(l:upper(), "L")

-- moving between windows
lo.map("<C-" .. h .. ">", "<C-w>h")
lo.map("<C-" .. j .. ">", "<C-w>j")
lo.map("<C-" .. k .. ">", "<C-w>k")
lo.map("<C-" .. l .. ">", "<C-w>l")

-- window resizing
lo.cmd("<C-,>", "res -1")
lo.cmd("<C-.>", "res +1")

-- ascension (paste without replacing clipboard)
m.map("x", "<leader>p", "\"_dhp")

-- keep centered while moving around
m.nmap("<C-u>", "<C-u>zz")
m.nmap("<C-d>", "<C-d>zz")