--- @module "config.autocmds"
--- This module defines the autocommands for the Neovim configuration.
--          ╭─────────────────────────────────────────────────────────╮
--          │                      Autocommands                       │
--          ╰─────────────────────────────────────────────────────────╯
local autogrp = vim.api.nvim_create_augroup
local autocmd = vim.api.nvim_create_autocmd

-- GIT CONFLICT MARKERS
-- if there are conflicts, jump to first conflict, highlight conflict markers,
-- and disable diagnostics (simplified version of `git-conflict.nvim`)
-- autogrp("GitConflictMarkers", { clear = true })
-- autocmd({ "BufEnter", "FocusGained" }, {
--   group = "GitConflictMarkers",
--   callback = function(ctx)
--     local hlgroup = "DiagnosticVirtualTextInfo" -- CONFIG
--
--     if not vim.api.nvim_buf_is_valid(ctx.buf) then
--       return
--     end
--     vim.system(
--       { "git", "diff", "--check", "--", vim.api.nvim_buf_get_name(ctx.buf) },
--       {},
--       vim.schedule_wrap(function(out)
--         local noConflicts = out.code == 0
--         local noGitRepo =
--           vim.startswith(out.stdout, "warning: Not a git repository")
--         if noConflicts or noGitRepo then
--           return
--         end
--
--         local ns = vim.api.nvim_create_namespace("conflictMarkers")
--         local firstConflict
--         for conflictLnum in out.stdout:gmatch("(%d+): leftover conflict marker") do
--           local lnum = tonumber(conflictLnum)
--           vim.api.nvim_buf_add_highlight(ctx.buf, ns, hlgroup, lnum - 1, 0, -1)
--           if not firstConflict then
--             firstConflict = lnum
--           end
--         end
--         if not firstConflict then
--           return
--         end
--
--         vim.api.nvim_win_set_cursor(0, { firstConflict, 0 })
--         vim.diagnostic.enable(false, { bufnr = ctx.buf })
--         vim.notify_once(
--           "Conflict markers found.",
--           nil,
--           { title = "Git Conflicts" }
--         )
--       end)
--     )
--   end,
-- })

-- LazyGit root detection
if pcall(require, "lazygit.utils") then
  vim.api.nvim_create_autocmd("BufEnter", {
    pattern = "*",
    callback = function()
      require("lazygit.utils").project_root_dir()
    end,
  })
end

--  ━━━━━━━━━━━━━━━━━━━━━━━ Set up Qalc keymappings ━━━━━━━━━━━━━━━━━━━━━━━
if pcall(require, "qalc") then
  -- Create a group for filetype-specific mappings
  vim.api.nvim_create_augroup("QalcFileTypeMappings", { clear = true })

  -- Create an autocommand for the qalc filetype
  vim.api.nvim_create_autocmd("FileType", {
    pattern = "qalc",
    group = "QalcFileTypeMappings",
    callback = function()
      -- Set the key mapping: 'y' to run the :QalcYank command in normal mode
      vim.keymap.set( -- Yank Result
        "n",
        "y",
        ":QalcYank +<CR>",
        { noremap = true, silent = true }
      )
      -- Set the key mapping: 'q' to run the :QalcClose command in normal mode
      vim.keymap.set( -- Close Qalc
        "n",
        "q",
        ":QalcClose<CR>",
        { noremap = true, silent = true }
      )
    end,
  })

  -- Define a custom command to close the Qalc buffer
  vim.api.nvim_create_user_command("QalcClose", function()
    local buf_name = vim.api.nvim_buf_get_name(0)
    if buf_name ~= "" then
      vim.cmd("bd!")
    else
      -- If the buffer has no name, just remove it without invoking :bd!
      vim.api.nvim_buf_delete(0, { force = true })
    end
  end, { bang = true })
end

--  ━━━━━━━━━━━━━━━━━━━━━━━━━━ Set up highlights ━━━━━━━━━━━━━━━━━━━━━━━━━━
local load_highlight = require("utils.highlight")
load_highlight.setup_autocommands()
load_highlight.setup_dashboard_highlight()

--  ━━━━━━━━━━━━━━━━━━━━━━━━━━ Set up nvim_exec ━━━━━━━━━━━━━━━━━━━━━━━

-- Function to check and execute the NVIM_EXEC environment variable
local function execute_nvim_exec()
  local exec_command = os.getenv("NVIM_EXEC")

  -- If NVIM_EXEC is set, execute the command
  if exec_command then
    vim.cmd(exec_command)
  end
end

-- Define an autogroup for the autocmd
vim.api.nvim_create_augroup("NvimExec", { clear = true })
-- Define an autocmd to run the function at startup
vim.api.nvim_create_autocmd("VimEnter", {
  group = "NvimExec",
  callback = execute_nvim_exec,
})