<?php

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Make Longer Refinement Step
 * 
 * Expands the article with more content.
 */
class AIGH_Step_Refine_Make_Longer extends AIGH_Step_Refinement_Base {
    
    protected $step_type = 'refine_make_longer';
    protected $step_name = 'Make Longer';
    protected $description = 'Expand the article significantly with additional content and deeper analysis';
    protected $estimated_duration = 25;
    
    /**
     * Get default configuration
     *
     * @return array
     */
    protected function get_default_config() {
        return array_merge(parent::get_default_config(), array(
            'expansion_percent' => 50,  // Target expansion percentage
            'max_tokens' => 5000        // Higher token limit for longer content
        ));
    }
    
    /**
     * Get the refinement instruction
     *
     * @return string
     */
    protected function get_refinement_instruction() {
        $percent = $this->get_config_value('expansion_percent', 50);
        return "Expand this article significantly ({$percent}% more content). Add detailed explanations and deeper analysis.";
    }
    
    /**
     * Build the user prompt
     *
     * @param string $original_content
     * @param string $research_context
     * @param AIGH_Pipeline_Context $context
     * @return string
     */
    protected function build_user_prompt($original_content, $research_context, $context) {
        $prompt = "Here is the original article:\n\n{$original_content}\n\n";
        
        if (!empty($research_context)) {
            $prompt .= "\n{$research_context}\n\n";
            $prompt .= "IMPORTANT: Use the specific data, statistics, and examples from the research above to improve the article.\n\n";
        }
        
        $prompt .= "Refinement Task: " . $this->get_refinement_instruction();
        
        if (!empty($research_context)) {
            $prompt .= " ADD NEW SECTIONS based on the research findings.";
        }
        
        $prompt .= "\n\n";
        
        $prompt .= "Expansion Guidelines:\n";
        $prompt .= "- Add new subsections where appropriate\n";
        $prompt .= "- Expand existing points with more detail\n";
        $prompt .= "- Include additional examples\n";
        $prompt .= "- Add transitional paragraphs for better flow\n";
        $prompt .= "- Ensure the expansion feels natural, not padded\n\n";
        
        $prompt .= $this->get_standard_requirements(!empty($research_context));
        
        return $prompt;
    }
    
    /**
     * Get configuration schema
     *
     * @return array
     */
    public function get_config_schema() {
        return array_merge(parent::get_config_schema(), array(
            'expansion_percent' => array(
                'type' => 'number',
                'label' => 'Expansion Percentage',
                'description' => 'Target percentage to expand the content',
                'min' => 25,
                'max' => 100,
                'default' => 50
            )
        ));
    }
}