local server = require "nvim-lsp-installer.server"
local npm = require "nvim-lsp-installer.installers.npm"
local Data = require "nvim-lsp-installer.data"
local path = require "nvim-lsp-installer.path"

local map = Data.list_map

local function append_node_modules(dirs)
    return map(function(dir)
        return path.concat { dir, "node_modules" }
    end, dirs)
end

return function(name, root_dir)
    local function get_cmd(workspace_dir)
        return {
            "ngserver",
            "--stdio",
            "--tsProbeLocations",
            table.concat(append_node_modules { root_dir, workspace_dir }, ","),
            "--ngProbeLocations",
            table.concat(
                append_node_modules {
                    path.concat { root_dir, "node_modules", "@angular", "language-server" },
                    workspace_dir,
                },
                ","
            ),
        }
    end

    return server.Server:new {
        name = name,
        root_dir = root_dir,
        homepage = "https://angular.io/guide/language-service",
        languages = { "angular" },
        installer = npm.packages { "@angular/language-server", "typescript" },
        default_options = {
            cmd = get_cmd(path.cwd()),
            cmd_env = npm.env(root_dir),
            on_new_config = function(new_config, new_root_dir)
                new_config.cmd = get_cmd(new_root_dir)
            end,
        },
    }
end