------------------------------------------------------------
-- General settings
------------------------------------------------------------
vim.opt.number = true
vim.opt.relativenumber = true
vim.opt.title = true
vim.opt.background = "dark"
vim.opt.laststatus = 2
vim.opt.showmode = true
vim.opt.showcmd = false
vim.opt.ruler = true

------------------------------------------------------------
-- Search and highlighting
------------------------------------------------------------
vim.opt.hlsearch = false
vim.opt.ignorecase = true
vim.opt.smartcase = true
vim.opt.incsearch = true
vim.opt.wildignore = { "*.o", "*.obj", "*.bak", "*.exe" }

------------------------------------------------------------
-- Indentation and formatting
------------------------------------------------------------
vim.opt.autoindent = true
vim.opt.cindent = true
vim.opt.smartindent = true
vim.opt.wrap = false
vim.opt.scrolloff = 5
vim.opt.completeopt = { "menuone", "noinsert" }

------------------------------------------------------------
-- Clipboard and mouse
------------------------------------------------------------
vim.opt.clipboard:append("unnamedplus")
vim.opt.mouse = "a"

------------------------------------------------------------
-- Session and history
------------------------------------------------------------
vim.opt.shada = "'100,<50,s10,h"
vim.opt.shadafile = vim.fn.expand("~/.local/state/nvim/shada/main.shada")

------------------------------------------------------------
-- Miscellaneous
------------------------------------------------------------
vim.opt.spelllang = { "en", "pl" }
vim.cmd("colorscheme pablo")
vim.cmd("syntax on")

-- Transparent background
vim.api.nvim_set_hl(0, "Normal", { bg = "none" })
vim.api.nvim_set_hl(0, "NormalFloat", { bg = "none" })

------------------------------------------------------------
-- Autocommands
------------------------------------------------------------
local augroup = vim.api.nvim_create_augroup("UserAutocmds", { clear = true })

-- Reload any .lua file on save
vim.api.nvim_create_autocmd("BufWritePost", {
  group = augroup,
  pattern = vim.fn.stdpath("config") .. "/**/*.lua",
  callback = function()
    vim.cmd("source %")
    vim.notify("Lua config reloaded", vim.log.levels.INFO)
  end,
})

-- Remove trailing whitespace & final newlines, keep cursor
vim.api.nvim_create_autocmd("BufWritePre", {
  group = augroup,
  pattern = "*",
  callback = function()
    local pos = vim.fn.getpos(".")
    vim.cmd([[%s/\s\+$//e]])
    vim.cmd([[%s/\n\+\%$//e]])
    vim.fn.setpos(".", pos)
  end,
})

vim.api.nvim_create_autocmd("BufWritePost", {
  pattern = "*.tex",
  callback = function()
    -- Run tex-fmt on the current file
    vim.cmd("silent !tex-fmt %")
    -- Reload the buffer to reflect formatting changes
    vim.cmd("edit!")
  end,
})

------------------------------------------------------------
-- Key mappings
------------------------------------------------------------
local map = vim.keymap.set
local opts = { noremap = true, silent = true }

vim.g.mapleader = "\\"

map("n", "<BS>", "dBx", { noremap = true })
map("n", "s", "o<Esc>kzz", { noremap = true })
map("n", "S", ":%s//g<Left><Left>", { noremap = true })
map("n", "Y", "y$", { noremap = true })
map("n", "-", "ddp", { noremap = true })
map("n", "_", "ddkP", { noremap = true })
map("n", "<C-J>", '"+yy', { noremap = true })
map("n", "<C-C>", '"+yW', { noremap = true })
map("n", "<C-K>", '"+p', { noremap = true })
map("n", "<space>", "i <esc>", { noremap = true })
map("v", "<C-J>", '"+y', { noremap = true })

------------------------------------------------------------
-- Tabs & indentation
------------------------------------------------------------
vim.opt.tabstop = 4
vim.opt.shiftwidth = 4
vim.opt.expandtab = true

------------------------------------------------------------
-- Filetype-specific mappings
------------------------------------------------------------
vim.api.nvim_create_autocmd("FileType", {
  group = augroup,
  pattern = "python",
  command = "map <F5> :w<CR>:!python3 %<CR>",
})

------------------------------------------------------------
-- lazy.nvim
------------------------------------------------------------
require("config.lazy")


------------------------------------------------------------
-- luasnip
------------------------------------------------------------
require("luasnip").config.set_config({ -- Setting LuaSnip config

  -- Enable autotriggered snippets
  enable_autosnippets = true,

  -- Use Tab (or some other key if you prefer) to trigger visual selection
  store_selection_keys = "<Tab>",
})

vim.cmd[[
" Use Tab to expand and jump through snippets
imap <silent><expr> <Tab> luasnip#expand_or_jumpable() ? '<Plug>luasnip-expand-or-jump' : '<Tab>'
smap <silent><expr> <Tab> luasnip#jumpable(1) ? '<Plug>luasnip-jump-next' : '<Tab>'

" Use Shift-Tab to jump backwards through snippets
imap <silent><expr> <S-Tab> luasnip#jumpable(-1) ? '<Plug>luasnip-jump-prev' : '<S-Tab>'
smap <silent><expr> <S-Tab> luasnip#jumpable(-1) ? '<Plug>luasnip-jump-prev' : '<S-Tab>'
]]

-- Load snippets from fiadra/chadsnips
require("luasnip.loaders.from_vscode").lazy_load()