package cv

import (
	"fmt"
	"strings"
	"time"

	c "github.com/juanatsap/cv-site/internal/constants"
	"github.com/juanatsap/cv-site/internal/fileutil"
)

// LoadCV loads CV data from a JSON file for the specified language
func LoadCV(language string) (*CV, error) {
	if err := c.ValidateLang(language); err != nil {
		return nil, err
	}

	var cvData CV
	filename := fmt.Sprintf("%s/cv-%s.json", c.DirData, language)
	if err := fileutil.LoadJSON(filename, &cvData); err != nil {
		return nil, err
	}

	// Replace {{YEAR}} placeholder in reference URLs with current year
	currentYear := fmt.Sprintf("%d", time.Now().Year())
	for i := range cvData.References {
		cvData.References[i].URL = replaceYearPlaceholder(cvData.References[i].URL, currentYear)
	}

	// Validate the loaded CV data
	if err := cvData.Validate(); err != nil {
		return nil, fmt.Errorf("validation failed: %w", err)
	}

	return &cvData, nil
}

// replaceYearPlaceholder replaces {{YEAR}} with the current year
func replaceYearPlaceholder(url string, year string) string {
	return strings.ReplaceAll(url, "{{YEAR}}", year)
}