-- debug.lua
--
-- Shows how to use the DAP plugin to debug your code.
--
-- Primarily focused on configuring the debugger for Go, but can
-- be extended to other languages as well. That's why it's called
-- kickstart.nvim and not kitchen-sink.nvim ;)

local function has_configuration(configurations, name, adapter)
  for _, configuration in ipairs(configurations or {}) do
    if configuration.name == name and configuration.type == adapter then
      return true
    end
  end

  return false
end

local function setup_cpp_dap(dap)
  dap.adapters.codelldb = dap.adapters.codelldb or {
    type = 'executable',
    command = 'codelldb',
  }

  local launch_name = 'Launch current file (codelldb)'
  local launch_configuration = {
    name = launch_name,
    type = 'codelldb',
    request = 'launch',
    program = function()
      return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
    end,
    cwd = '${workspaceFolder}',
    stopOnEntry = false,
    args = {},
  }

  for _, language in ipairs { 'c', 'cpp' } do
    dap.configurations[language] = dap.configurations[language] or {}

    if not has_configuration(dap.configurations[language], launch_name, 'codelldb') then
      table.insert(dap.configurations[language], vim.deepcopy(launch_configuration))
    end
  end
end

---@module 'lazy'
---@type LazySpec
return {
  -- NOTE: Yes, you can install new plugins here!
  'mfussenegger/nvim-dap',
  -- NOTE: And you can specify dependencies as well
  dependencies = {
    -- Creates a beautiful debugger UI
    'rcarriga/nvim-dap-ui',

    -- Required dependency for nvim-dap-ui
    'nvim-neotest/nvim-nio',

    -- Installs the debug adapters for you
    'mason-org/mason.nvim',
    'jay-babu/mason-nvim-dap.nvim',

    -- Add your own debuggers here
    'leoluz/nvim-dap-go',
  },
  keys = {
    -- Basic debugging keymaps, feel free to change to your liking!
    { '<F5>', function() require('dap').continue() end, desc = 'Debug: Start/Continue' },
    { '<F1>', function() require('dap').step_into() end, desc = 'Debug: Step Into' },
    { '<F2>', function() require('dap').step_over() end, desc = 'Debug: Step Over' },
    { '<F3>', function() require('dap').step_out() end, desc = 'Debug: Step Out' },
    { '<leader>b', function() require('dap').toggle_breakpoint() end, desc = 'Debug: Toggle Breakpoint' },
    { '<leader>B', function() require('dap').set_breakpoint(vim.fn.input 'Breakpoint condition: ') end, desc = 'Debug: Set Breakpoint' },
    -- Toggle to see last session result. Without this, you can't see session output in case of unhandled exception.
    { '<F7>', function() require('dapui').toggle() end, desc = 'Debug: See last session result.' },
  },
  config = function()
    local dap = require 'dap'
    local dapui = require 'dapui'

    require('mason-nvim-dap').setup {
      -- Makes a best effort to setup the various debuggers with
      -- reasonable debug configurations
      automatic_installation = true,

      -- You can provide additional configuration to the handlers,
      -- see mason-nvim-dap README for more information
      handlers = {},

      -- You'll need to check that you have the required things installed
      -- online, please don't ask me how to install them :)
      ensure_installed = {
        -- Update this to ensure that you have the debuggers for the langs you want
        'delve',
        'codelldb',
      },
    }

    -- Dap UI setup
    -- For more information, see |:help nvim-dap-ui|
    ---@diagnostic disable-next-line: missing-fields
    dapui.setup {
      -- Set icons to characters that are more likely to work in every terminal.
      --    Feel free to remove or use ones that you like more! :)
      --    Don't feel like these are good choices.
      icons = { expanded = '▾', collapsed = '▸', current_frame = '*' },
      ---@diagnostic disable-next-line: missing-fields
      controls = {
        icons = {
          pause = '⏸',
          play = '▶',
          step_into = '⏎',
          step_over = '⏭',
          step_out = '⏮',
          step_back = 'b',
          run_last = '▶▶',
          terminate = '⏹',
          disconnect = '⏏',
        },
      },
    }

    -- Change breakpoint icons
    -- vim.api.nvim_set_hl(0, 'DapBreak', { fg = '#e51400' })
    -- vim.api.nvim_set_hl(0, 'DapStop', { fg = '#ffcc00' })
    -- local breakpoint_icons = vim.g.have_nerd_font
    --     and { Breakpoint = '', BreakpointCondition = '', BreakpointRejected = '', LogPoint = '', Stopped = '' }
    --   or { Breakpoint = '●', BreakpointCondition = '⊜', BreakpointRejected = '⊘', LogPoint = '◆', Stopped = '⭔' }
    -- for type, icon in pairs(breakpoint_icons) do
    --   local tp = 'Dap' .. type
    --   local hl = (type == 'Stopped') and 'DapStop' or 'DapBreak'
    --   vim.fn.sign_define(tp, { text = icon, texthl = hl, numhl = hl })
    -- end

    dap.listeners.after.event_initialized['dapui_config'] = dapui.open
    dap.listeners.before.event_terminated['dapui_config'] = dapui.close
    dap.listeners.before.event_exited['dapui_config'] = dapui.close

    -- Install golang specific config
    require('dap-go').setup {
      delve = {
        -- On Windows delve must be run attached or it crashes.
        -- See https://github.com/leoluz/nvim-dap-go/blob/main/README.md#configuring
        detached = vim.fn.has 'win32' == 0,
      },
    }

    setup_cpp_dap(dap)
  end,
}