-- Lumacs Configuration File
-- This file is executed on startup and allows you to customize keybindings,
-- create commands, and extend the editor with Lua.

print("Loading init.lua...")

-- Example: Custom keybindings
-- Syntax: bind_key("key", function() ... end)

-- Emacs-style navigation (Ctrl+N/P for next/previous line)
bind_key("C-n", function()
    editor:move_down()
    message("Moved down")
end)

bind_key("C-p", function()
    editor:move_up()
    message("Moved up")
end)

bind_key("C-f", function()
    editor:move_right()
end)

bind_key("C-b", function()
    editor:move_left()
end)

-- Emacs-style line navigation
bind_key("C-a", function()
    editor:move_to_line_start()
end)

bind_key("C-e", function()
    editor:move_to_line_end()
end)

-- Custom command: Save buffer
bind_key("C-s", function()
    local buf = editor:buffer()
    if buf:save() then
        message("Buffer saved: " .. buf:name())
    else
        message("Failed to save buffer")
    end
end)

-- Custom command: Insert timestamp
bind_key("C-t", function()
    local cursor_pos = editor:cursor()
    local timestamp = os.date("%Y-%m-%d %H:%M:%S")
    editor:buffer():insert(cursor_pos, timestamp)
    message("Inserted timestamp")
end)

-- Example: Helper functions you can define
function goto_line(line_num)
    local pos = lumacs.Position(line_num - 1, 0)
    editor:set_cursor(pos)
    message("Jumped to line " .. line_num)
end

-- Example: Buffer inspection
function buffer_info()
    local buf = editor:buffer()
    local cursor = editor:cursor()

    message(string.format(
        "Buffer: %s | Lines: %d | Cursor: %d,%d | Modified: %s",
        buf:name(),
        buf:line_count(),
        cursor.line + 1,
        cursor.column + 1,
        buf:is_modified() and "yes" or "no"
    ))
end

-- Bind to show buffer info
bind_key("C-i", buffer_info)

-- Welcome message
message("Lumacs initialized! Press C-i for buffer info, C-s to save.")