-- ---
-- @author  jianqun.me
-- @updated 2025-07-17
-- ---

vim.cmd("colorscheme habamax")
vim.cmd("filetype indent off")

-- ---
-- Options
-- ---

vim.opt.cdhome          = true
vim.opt.clipboard       = ""
vim.opt.confirm         = true
vim.opt.cursorline      = true
vim.opt.expandtab       = true
vim.opt.foldcolumn      = "auto"
vim.opt.guicursor       = {
                            "n-v-c-sm-t:block-Cursor",
                            "i-ci-ve:ver10-Cursor",
                            "r-cr-o:hor5-Cursor",
                            "a:blinkon0"
                          }
vim.opt.ignorecase      = true
vim.opt.list            = true
vim.opt.listchars       = { tab = "··▸", lead = "·", trail = "·" }
vim.opt.matchpairs      = { "(:)", "[:]", "{:}", "<:>" }
vim.opt.modeline        = false
vim.opt.mouse           = ""
vim.opt.mousemodel      = "extend"
vim.opt.number          = true
vim.opt.relativenumber  = true
vim.opt.shadafile       = "NONE"
vim.opt.shiftwidth      = 0
vim.opt.showmatch       = true
vim.opt.showtabline     = 2
vim.opt.smartcase       = true
vim.opt.splitbelow      = true
vim.opt.splitright      = true
vim.opt.statuscolumn    = "%(%C%s%=%l│ %)"
vim.opt.statusline      = "%!v:lua.MyStatusLine()"
vim.opt.switchbuf       = "usetab"
vim.opt.tabline         = "%!v:lua.MyTabLine()"
vim.opt.tabstop         = 2
vim.opt.termguicolors   = true
vim.opt.timeoutlen      = 200
vim.opt.title           = true
vim.opt.titlestring     = table.concat({
                            "%{bufname('%')==''?'Untitled':fnamemodify(bufname('%'),':t')}",
                            "%( [%H%W%{&modified?',+':''}%R]%) - Nvim"
                          }, "")

if vim.env.TERM == "linux" then
  vim.opt.cursorline    = false
  vim.opt.guicursor     = ""
  vim.opt.list          = false
  vim.opt.termguicolors = false
  vim.opt.title         = false
end

-- ---
-- MyStatusLine
-- ---

function MyStatusLine()
  local modemap = {
    ["n"]     = "[NORMAL] ",
    ["niI"]   = "[(insert)] ",
    ["niR"]   = "[(replace)] ",
    ["niV"]   = "[(vreplace)] ",
    ["nt"]    = "[(terminal)] ",
    ["ntT"]   = "[(terminal)] ",
    ["v"]     = "[VISUAL] ",
    ["vs"]    = "[VISUAL] ",
    ["V"]     = "[VISUAL LINE] ",
    ["Vs"]    = "[VISUAL LINE] ",
    ["\22"]   = "[VISUAL BLOCK] ",
    ["\22s"]  = "[VISUAL BLOCK] ",
    ["s"]     = "[SELECT] ",
    ["S"]     = "[SELECT LINE] ",
    ["\19"]   = "[SELECT BLOCK] ",
    ["i"]     = "[INSERT] ",
    ["ic"]    = "[INSERT] ",
    ["R"]     = "[REPLACE] ",
    ["Rc"]    = "[REPLACE] ",
    ["Rv"]    = "[VREPLACE] ",
    ["Rvc"]   = "[VREPLACE] ",
    ["c"]     = "[CMDLINE] ",
    ["ct"]    = "[CMDLINE] ",
    ["cr"]    = "[CMDLINE] ",
    ["t"]     = "[TERMINAL] "
  }
  return (modemap[vim.fn.mode(1)] or "") .. table.concat({
    "%<",
    "%{bufname('%')==''?'Untitled':bufname('%')}",
    "%( [%H%W%{&modified?',+':''}%R]%)",
    "%= %l,%c%V %p%%",
    "%( [%{toupper(&fenc!=''?&fenc:&enc)},%{toupper(&ff)}%(,%Y%)]%)"
  }, "")
end

-- ---
-- MyTabLine
-- ---

function MyTabLine()
  local tabline = ""
  for tabnr = 1, vim.fn.tabpagenr("$") do
    if tabnr == vim.fn.tabpagenr() then
      tabline = tabline .. "%#TabLineSel#"
    else
      tabline = tabline .. "%#TabLine#"
    end
    tabline =  tabline .. "%" .. tabnr .. "T"
    local buflist = vim.fn.tabpagebuflist(tabnr)
    local bufname = vim.fn.bufname(buflist[vim.fn.tabpagewinnr(tabnr)])
    if bufname ~= "" then
      bufname = vim.fn.pathshorten(bufname)
    else
      bufname = "Untitled"
    end
    local hasmodified = false
    for _, bufnr in ipairs(buflist) do
      if vim.fn.getbufvar(bufnr, "&modified") == 1 then
        hasmodified = true
        break
      end
    end
    local wincount = vim.fn.tabpagewinnr(tabnr, "$")
    local label = ""
    if wincount > 1 then label = label .. wincount end
    if hasmodified then label = label .. "+" end
    if label ~= "" then label = label .. " " end
    tabline = tabline .. " " .. label .. bufname .. " "
  end
  tabline = tabline .. "%#TabLineFill#%T" .. "%<"
  return tabline
end

-- ---
-- AutocmdGroup
-- ---

vim.api.nvim_create_augroup("init.lua", { clear = true })

-- ---
-- SyntaxComplete
-- ---

vim.api.nvim_create_autocmd("Filetype", {
  group = "init.lua",
  callback = function()
    if vim.bo.omnifunc == "" then
      vim.bo.omnifunc = "syntaxcomplete#Complete"
    end
  end
})

-- ---
-- Clipboard
-- ---

vim.g.clipboard = {
  name = "disabled",
  copy = {
    ["+"] = function() end,
    ["*"] = function() end
  },
  paste = {
    ["+"] = function() return { {}, "" } end,
    ["*"] = function() return { {}, "" } end
  }
}

vim.api.nvim_create_autocmd("TextYankPost", {
  group = "init.lua",
  callback = function()
    local clipboard = vim.fn.getreg('"')
    if vim.v.event.operator == "y" then
      require("vim.ui.clipboard.osc52").copy()(vim.split(clipboard, "\n"))
    end
  end
})

-- ---
-- Mappings
-- ---

vim.keymap.set({ "n", "x" }, "<Space>", ":")

vim.keymap.set({ "n", "v" }, "<C-Up>", "<C-U>")
vim.keymap.set({ "n", "v" }, "<C-Down>", "<C-D>")

vim.keymap.set({ "i", "c" }, "<C-H>", "<Left>")
vim.keymap.set({ "i", "c" }, "<C-J>", "<Down>")
vim.keymap.set({ "i", "c" }, "<C-K>", "<Up>")
vim.keymap.set({ "i", "c" }, "<C-L>", "<Right>")

vim.keymap.set("v", "<C-J>", ":m '>+1<CR>gv", { silent = true })
vim.keymap.set("v", "<C-K>", ":m '<-2<CR>gv", { silent = true })

local scrollwheelkeys = {
    "<ScrollWheelUp>",   "<ScrollWheelDown>",   "<ScrollWheelLeft>",   "<ScrollWheelRight>",
  "<S-ScrollWheelUp>", "<S-ScrollWheelDown>", "<S-ScrollWheelLeft>", "<S-ScrollWheelRight>",
  "<C-ScrollWheelUp>", "<C-ScrollWheelDown>", "<C-ScrollWheelLeft>", "<C-ScrollWheelRight>",
  "<M-ScrollWheelUp>", "<M-ScrollWheelDown>", "<M-ScrollWheelLeft>", "<M-ScrollWheelRight>"
}

for _, scrollwheel in ipairs(scrollwheelkeys) do
  vim.keymap.set({ "", "!" }, scrollwheel, "<Nop>")
end