From 28fe002ea0b963dc00f1a20b1531bafc05ea0ce6 Mon Sep 17 00:00:00 2001
From: Janis Hutz <development@janishutz.com>
Date: Thu, 23 Oct 2025 16:21:04 +0200
Subject: [PATCH] [Header] Add

---
 nvim/lua/plugins/util/header.lua | 71 ++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 nvim/lua/plugins/util/header.lua

diff --git a/nvim/lua/plugins/util/header.lua b/nvim/lua/plugins/util/header.lua
new file mode 100644
index 0000000..8c7ea14
--- /dev/null
+++ b/nvim/lua/plugins/util/header.lua
@@ -0,0 +1,71 @@
+return {
+    "attilarepka/header.nvim",
+    config = function()
+        local header = require("header")
+        local augroup = vim.api.nvim_create_augroup
+        local autocmd = vim.api.nvim_create_autocmd
+        local opts = require("utils").opts
+
+        header.setup({
+            allow_autocmds = true,
+            file_name = true,
+            date_created = true,
+            date_created_fmt = "%Y-%m-%d %H:%M:%S",
+            date_modified = true,
+            date_modified_fmt = "%Y-%m-%d %H:%M:%S",
+            line_separator = "------",
+            use_block_header = false,
+            license_from_file = false,
+            author_from_git = true,
+        })
+
+        vim.keymap.set("n", "<leader><leader>h", function()
+            header.add_headers()
+        end, opts("Add headers to file"))
+
+        augroup("file-header", { clear = true })
+        autocmd("BufWritePre", {
+            pattern = "*",
+            callback = function()
+                local header = require("header")
+                if header and header.update_date_modified then
+                    header.update_date_modified()
+                else
+                    vim.notify_once("header.update_date_modified is not available", vim.log.levels.WARN)
+                end
+            end,
+            group = "file-header",
+            desc = "Update header's date modified",
+        })
+
+        autocmd({ "BufNewFile", "BufReadPost" }, {
+            pattern = "*",
+            callback = function()
+                local header = require("header")
+                if not header then
+                    vim.notify_once(
+                        "Could not automatically add header to new file: header module couldn't be found",
+                        vim.log.levels.ERROR
+                    )
+                    return
+                end
+
+                local lines = vim.api.nvim_buf_get_lines(0, 0, -1, false)
+                local is_empty = #lines == 1 and lines[1] == ""
+
+                if header.config.allow_autocmds and is_empty then
+                    local original_fmt = header.config.date_created_fmt
+                    local now = os.date(header.config.date_created_fmt, os.time())
+
+                    -- force add_headers to use the current datetime, otherwise it will show 1970-01-01
+                    header.config.date_created_fmt = now
+                    header.add_headers()
+
+                    header.config.date_created_fmt = original_fmt -- restore the original format
+                end
+            end,
+            group = "file-header",
+            desc = "Add copyright header to new/empty files",
+        })
+    end,
+}