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<?php
namespace Comprobo\Verify;

class Workflow
{
    private $config;
    private $factory;
    private $state;

    public function __construct(array $config, Factory $factory, State $state)
    {
        $this->config = $config;
        $this->factory = $factory;
        $this->state = $state;
    }

    public function cloneTemplate($templateId, $newFlowName, array $customFields = [])
    {
        if (!$this->state->has('token')) {
            throw new Exceptions\Auth("Could not validate clone template request");
        }

        $url = str_replace('{workflowid}', $templateId, $this->config['urls']['workflowClone']);

        $request = $this->factory->getRequest();
        $request->authorize($this->state->get('token'));

        $params = [ 'name' => $newFlowName . ' [' . time() . ']' ];
        if (!empty($customFields)) {
            $params['mergeValues'] = $customFields;
        }

        $response = $request->post($url, ['json' => $params]);
        $body     = json_decode((string) $response->getBody(), true);

        return $body;
    }

    public function listTemplates()
    {
        if (!$this->state->has('token')) {
            throw new Exceptions\Auth("Could not validate list templates request");
        }

        $postDetails = [
            'limit' => -1,
            'offset' => 0,
            'templates' => 'only', // only template workflows
            'includeInactive' => false,
            'order' => 'name',
            'owner' => false, // any workflow in the org
        ];

        $request = $this->factory->getRequest();
        $request->authorize($this->state->get('token'));
        $response = $request->get($this->config['urls']['workflowList'], ['query' => $postDetails]);
        $body = json_decode((string) $response->getBody(), true);

        return $body['results'];
    }

    public function getMergeFields($workflowId)
    {
        if (!$this->state->has('token')) {
            throw new Exceptions\Auth("Could not validate list templates request");
        }

        $request = $this->factory->getRequest();
        $request->authorize($this->state->get('token'));

        $url = str_replace('{workflowid}', $workflowId, $this->config['urls']['workflowAnalyse']);

        $response = $request->get($url, ['http_errors' => false]);
        $body = json_decode((string) $response->getBody(), true);

        return $body['mergeFields'];
    }

    public function assignUser($userId, $workflowId)
    {
        return $this->factory->getUser()->assignWorkflow($userId, $workflowId);
    }
}