-- Minimal settings for bootstrap and Phase 3.2

-- Disable unused language providers early; enable later only if a plugin requires them
vim.g.loaded_ruby_provider = 0
vim.g.loaded_perl_provider = 0
vim.g.loaded_node_provider = 0

-- Enable project-local configuration files
vim.opt.exrc = true     -- Load .nvim.lua from project root
vim.opt.secure = true   -- Prompt before loading untrusted files

-- Phase 3.2: non-plugin settings (legacy values where specified)
-- Completion UI for nvim-cmp
vim.opt.completeopt = { 'menu', 'menuone', 'noselect' }

-- Spelling
vim.opt.spelllang = { 'en_gb' }

-- Keyword characters (add $ for PHP/shell variables, - for CSS/HTML/config files)
vim.opt.iskeyword:append('$')
vim.opt.iskeyword:append('-')

-- Visuals
vim.opt.showbreak = '  ↳'
vim.opt.listchars = {
  eol = '¬',
  tab = '│ ',
  trail = '~',
  extends = '>',
  precedes = '<',
  space = '·',
}

-- Enable line numbers and relative line numbers
vim.opt.number = true
vim.opt.relativenumber = true

-- Phase 6.2: UX settings
vim.opt.signcolumn = 'yes'        -- Always show sign column (for LSP diagnostics, git signs, etc.)
vim.opt.cursorline = true         -- Highlight current line
vim.opt.colorcolumn = '80,120'    -- Visual guides at 80 and 120 characters

-- Phase 9.4: Default indentation (per-filetype overrides in after/ftplugin/)
vim.opt.tabstop = 4               -- Display tabs as 4 spaces
vim.opt.shiftwidth = 4            -- Indent by 4
vim.opt.softtabstop = 4           -- Backspace removes 4 spaces
vim.opt.expandtab = true          -- Use spaces by default (overridden per-filetype)

-- LSP diagnostics configuration
vim.diagnostic.config({
  virtual_text = {
    spacing = 4,
    prefix = '●',
    -- Show severity (ERROR, WARN, INFO, HINT)
    format = function(diagnostic)
      return string.format("%s: %s", diagnostic.source or "", diagnostic.message)
    end,
  },
  signs = false,             -- Disable signs (redundant with background highlights and virtual text)
  underline = true,          -- Use background highlights on problematic text
  update_in_insert = false,  -- Don't update diagnostics while typing
  severity_sort = true,      -- Sort by severity (errors first)
  float = {
    border = 'rounded',
    source = 'always',       -- Show diagnostic source
    header = '',
    prefix = '',
  },
})