-- Angular requires a node_modules directory to probe for @angular/language-service and typescript
-- in order to use your projects configured versions.
-- This defaults to the vim cwd, but will get overwritten by the resolved root of the file.
local function get_probe_dir(root_dir)
	local project_root = vim.fs.dirname(vim.fs.find("node_modules", { path = root_dir, upward = true })[1])

	return project_root and (project_root .. "/node_modules") or ""
end

local function get_angular_core_version(root_dir)
	local project_root = vim.fs.dirname(vim.fs.find("node_modules", { path = root_dir, upward = true })[1])

	if not project_root then
		return ""
	end

	local package_json = project_root .. "/package.json"
	if not vim.uv.fs_stat(package_json) then
		return ""
	end

	local contents = io.open(package_json):read("*a")
	local json = vim.json.decode(contents)
	if not json.dependencies then
		return ""
	end

	local angular_core_version = json.dependencies["@angular/core"]

	angular_core_version = angular_core_version and angular_core_version:match("%d+%.%d+%.%d+")

	return angular_core_version
end

local default_probe_dir = get_probe_dir(vim.fn.getcwd())
local default_angular_core_version = get_angular_core_version(vim.fn.getcwd())

local cmd = {
    'node',
    '--max-old-space-size=8192',
    vim.fn.exepath('ngserver'),
    '--stdio',
    '--tsProbeLocations',
    default_probe_dir,
    '--ngProbeLocations',
    default_probe_dir,
    '--angularCoreVersion',
    default_angular_core_version,
}

local my_config = require("lspconf")

local config = {
	cmd = cmd,
	on_new_config = function(new_config, new_root_dir)
		new_config.cmd = cmd
	end,
	on_attach = function(client, bufnr)
		my_config.on_attach(client, bufnr)
		for _, server in ipairs(vim.lsp.get_clients()) do
			if server.name == "ts_ls" then
				local tsserver = vim.lsp.get_client_by_id(server.id)
				tsserver.server_capabilities.renameProvider = false
			end
		end
	end,
	capabilities = my_config.capabilities,
}

vim.lsp.config("angularls", config)