import { Example } from "./Example"
import * as yaml from "node-yaml";

export function GenerateExampleAnsibleRest(model: Example) : string {
    var output: any[] = [];
    var references = model.References;
    
    if (references.length > 0)
    {
        for (var i in references)
        {
            var ref: string = model.References[i];
            if (!ref.startsWith("# ref##"))
            {
                output.push({ 'import_playbook': ref + '.yml'});
            }
        }
    }

    // XXX - why it's needed?
    //var ignore: string[] = [];
    //ignore.push("api-version");

    var parts: string[] = model.Url.split("/");
    var isLongRunning: boolean = model.IsExampleLongRunning();    

    // create vars
    var var_array = model.Variables;
    var vars = {};
    for (var i in var_array)
    {
        vars[var_array[i].name] = var_array[i].value;
    }

    var tasks = [];
    var task = {};

    task['name'] = model.Name;
    var body = {};
    // add method and use appropriate module
    if (model.Method == "get")
    {
        task['azure_rm_resource_facts'] = body;
    }
    else
    {
        task['azure_rm_resource'] = body;

        if (model.Method != "put")
        {
            body['method'] = model.Method.toUpperCase();
        }

        if (model.Method == "put")
        {
            body['idempotency'] = true;
        }
    }

    // add api version
    body['api_version'] = model.GetExampleApiVersion();

    if (isLongRunning)
    {
        body['polling_timeout'] = 600;
        body['polling_interval'] = 30
    }

    var resource: boolean = false;
    var subresource: boolean = false;
    var subresourceAdded: boolean = false;
    var subresource_body = [];

    for (var pi = 0; pi < parts.length; pi++)
    {
        if (parts[pi].startsWith("{{"))
        {
            var p: string = parts[pi].substring(2, parts[pi].length - 4).trim();
            if (parts[pi - 1] == "resourceGroups")
            {
                body['resource_group'] = "{{ resource_group }}";
            }
            else if (subresource)
            {
                subresource_body[subresource_body.length - 1]['name'] = parts[pi]
            }
            else if (resource)
            {
                body['resource_name'] = parts[pi];
                subresource = true;
            }

            //ignore.push(p);
        }
        else
        {
            if ((pi > 0) && parts[pi - 1] == "providers")
            {
                body['provider'] = parts[pi].split(".").pop();
                resource = true;
            }
            else if (subresource)
            {
                if (!subresourceAdded)
                {
                    subresource_body = [];
                    body['subresource'] = subresource_body;
                    subresourceAdded = true;
                }

                subresource_body.push({ 'type': parts[pi]})
            }
            else if (resource)
            {
                body['resource_type'] = parts[pi];
            }
        }
    }

    if ((model.Method != "get") &&
        (model.Method != "delete") &&
        (model.Method != "head"))
    {
        body['body'] = model.GetExampleBody();
    }

    tasks.push(task);

    if (model.Method == "get")
    {
        // add register: output to first task
        task['register'] = 'output';

        // add debug task
        task = { 'debug': { 'var': 'output' }};
        tasks.push(task);
    }

    // create play
    var play = {};
    play['hosts'] = 'localhost';
    play['roles'] = ['../modules'];
    play['vars_files'] =  ['_vars.yml'];
    if (vars != {}) play['vars'] = vars;
    play['tasks'] = tasks;

    // add play to playbook
    output.push(play)

    // dump yaml
    return yaml.dump(output);
}