package models

import (
	"encoding/json"
	"fmt"
	"os"
)

// CV represents the complete curriculum vitae structure
type CV struct {
	Personal       Personal        `json:"personal"`
	Summary        string          `json:"summary"`
	Experience     []Experience    `json:"experience"`
	AIDevelopment  AIDevelopment   `json:"ai_development"`
	Education      []Education     `json:"education"`
	Skills         Skills          `json:"skills"`
	Languages      []Language      `json:"languages"`
	Projects       []Project       `json:"projects"`
	Awards         []Award         `json:"awards"`
	Certifications []Certification `json:"certifications"`
	Courses        []Course        `json:"courses"`
	References     []Reference     `json:"references"`
	Other          Other           `json:"other"`
	Meta           Meta            `json:"meta"`
}

type Personal struct {
	Name         string `json:"name"`
	Title        string `json:"title"`
	Location     string `json:"location"`
	Email        string `json:"email"`
	Phone        string `json:"phone"`
	DateOfBirth  string `json:"dateOfBirth"`
	PlaceOfBirth string `json:"placeOfBirth"`
	Citizenship  string `json:"citizenship"`
	LinkedIn     string `json:"linkedin"`
	GitHub       string `json:"github"`
	Domestika    string `json:"domestika"`
	Website      string `json:"website"`
	Photo        string `json:"photo"`
}

type Experience struct {
	Position         string   `json:"position"`
	Company          string   `json:"company"`
	CompanyURL       string   `json:"companyURL,omitempty"` // Optional URL for company website
	CompanyLogo      string   `json:"companyLogo"`
	Location         string   `json:"location"`
	StartDate        string   `json:"startDate"`
	EndDate          string   `json:"endDate"`
	Current          bool     `json:"current"`
	Expired          bool     `json:"expired,omitempty"` // Optional flag for expired companies
	ShortDescription string   `json:"shortDescription"`
	Responsibilities []string `json:"responsibilities"`
	Technologies     []string `json:"technologies"`
	Highlights       []string `json:"highlights"`
	Duration         string   `json:"-"` // Calculated field, not from JSON
}

type AIDevelopment struct {
	Title        string     `json:"title"`
	Period       string     `json:"period"`
	Description  string     `json:"description"`
	Skills       []AISkill  `json:"skills"`
	Achievements []string   `json:"achievements"`
}

type AISkill struct {
	Category    string   `json:"category"`
	Proficiency string   `json:"proficiency"`
	Items       []string `json:"items"`
}

type Education struct {
	Degree      string `json:"degree"`
	Institution string `json:"institution"`
	Location    string `json:"location"`
	StartDate   string `json:"startDate"`
	EndDate     string `json:"endDate"`
	Field       string `json:"field"`
}

type Skills struct {
	Technical  []SkillCategory `json:"technical"`
	SoftSkills []string        `json:"soft_skills"`
}

type SkillCategory struct {
	Category    string   `json:"category"`
	Proficiency int      `json:"proficiency"`
	Items       []string `json:"items"`
	Sidebar     string   `json:"sidebar"` // "left" or "right"
}

type Language struct {
	Language    string `json:"language"`
	Proficiency string `json:"proficiency"`
	Level       int    `json:"level"`
	Detail      string `json:"detail,omitempty"` // Optional detail like "Oral (Medio/Alto) Escrito (Alto)"
}

type Project struct {
	Title            string   `json:"title"`
	URL              string   `json:"url"`
	ProjectLogo      string   `json:"projectLogo,omitempty"`  // Optional logo filename
	GitRepoUrl       string   `json:"gitRepoUrl,omitempty"`    // Optional git repository URL for dynamic dates
	Location         string   `json:"location"`
	StartDate        string   `json:"startDate,omitempty"`     // Optional static start date
	Current          bool     `json:"current"`
	MaintainedBy     string   `json:"maintainedBy,omitempty"` // Optional maintainer name (e.g., "SAP")
	Technologies     []string `json:"technologies"`
	ShortDescription string   `json:"shortDescription"`
	Responsibilities []string `json:"responsibilities"`

	// Computed fields (not stored in JSON)
	ComputedStartDate string `json:"-"` // Dynamically calculated from git repo or system
	DynamicDate       string `json:"-"` // Current date for ongoing projects
}

type Award struct {
	Title            string   `json:"title"`
	Issuer           string   `json:"issuer"`
	Date             string   `json:"date"`
	Description      string   `json:"description"`
	ShortDescription string   `json:"shortDescription,omitempty"`
	Responsibilities []string `json:"responsibilities,omitempty"`
	AwardLogo        string   `json:"awardLogo"`
}

type Certification struct {
	Name        string `json:"name"`
	Issuer      string `json:"issuer"`
	Date        string `json:"date"`
	Description string `json:"description"`
}

type Course struct {
	Title            string   `json:"title"`
	Institution      string   `json:"institution"`
	Location         string   `json:"location"`
	Date             string   `json:"date"`
	Duration         string   `json:"duration"`
	Description      string   `json:"description"`
	ShortDescription string   `json:"shortDescription,omitempty"`
	Responsibilities []string `json:"responsibilities,omitempty"`
}

type Reference struct {
	Title      string `json:"title"`
	URL        string `json:"url"`
	Type       string `json:"type"` // "recommendation", "portfolio", "profile", "cv", "presentation"
	TextBefore string `json:"textBefore,omitempty"` // Text before the link
	LinkText   string `json:"linkText,omitempty"`   // Bold text inside the link
	TextAfter  string `json:"textAfter,omitempty"`  // Text after the link
}

type Other struct {
	DriverLicense string `json:"driverLicense"`
}

type Meta struct {
	Version     string `json:"version"`
	LastUpdated string `json:"lastUpdated"`
	Format      string `json:"format"`
	Language    string `json:"language"`
}

// LoadCV loads CV data from a JSON file for the specified language
func LoadCV(lang string) (*CV, error) {
	// Validate language
	if lang != "en" && lang != "es" {
		return nil, fmt.Errorf("unsupported language: %s", lang)
	}

	// Determine which JSON file to load
	filename := fmt.Sprintf("data/cv-%s.json", lang)

	// Read the JSON file
	data, err := os.ReadFile(filename)
	if err != nil {
		return nil, fmt.Errorf("error reading file %s: %w", filename, err)
	}

	// Parse JSON
	var cv CV
	if err := json.Unmarshal(data, &cv); err != nil {
		return nil, fmt.Errorf("error parsing JSON: %w", err)
	}

	return &cv, nil
}