package model

import (
	"time"

	"github.com/google/uuid"
)

type Skill struct {
	ID          uuid.UUID `json:"id" db:"id"`
	Name        string    `json:"name" db:"name" validate:"required"`
	Category    string    `json:"category" db:"category" validate:"required"`
	Proficiency int       `json:"proficiency" db:"proficiency" validate:"min=1,max=5"`
	Icon        string    `json:"icon,omitempty" db:"icon"`
	Order       int       `json:"order" db:"sort_order"`
	CreatedAt   time.Time `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time `json:"updated_at" db:"updated_at"`
}

type Project struct {
	ID          uuid.UUID `json:"id" db:"id"`
	Title       string    `json:"title" db:"title" validate:"required"`
	Description string    `json:"description" db:"description" validate:"required"`
	ShortDesc   string    `json:"short_desc" db:"short_desc"`
	TechStack   []string  `json:"tech_stack" db:"tech_stack"`
	ImageURL    string    `json:"image_url,omitempty" db:"image_url"`
	DemoURL     string    `json:"demo_url,omitempty" db:"demo_url"`
	RepoURL     string    `json:"repo_url,omitempty" db:"repo_url"`
	Category    string    `json:"category" db:"category"`
	Featured    bool      `json:"featured" db:"featured"`
	Order       int       `json:"order" db:"sort_order"`
	CreatedAt   time.Time `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time `json:"updated_at" db:"updated_at"`
}

type Experience struct {
	ID          uuid.UUID  `json:"id" db:"id"`
	Company     string     `json:"company" db:"company" validate:"required"`
	Role        string     `json:"role" db:"role" validate:"required"`
	Location    string     `json:"location" db:"location"`
	StartDate   time.Time  `json:"start_date" db:"start_date" validate:"required"`
	EndDate     *time.Time `json:"end_date,omitempty" db:"end_date"`
	Current     bool       `json:"current" db:"current"`
	Description string     `json:"description" db:"description"`
	TechStack   []string   `json:"tech_stack" db:"tech_stack"`
	Order       int        `json:"order" db:"sort_order"`
	CreatedAt   time.Time  `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time  `json:"updated_at" db:"updated_at"`
}

type Service struct {
	ID          uuid.UUID `json:"id" db:"id"`
	Title       string    `json:"title" db:"title" validate:"required"`
	Description string    `json:"description" db:"description" validate:"required"`
	Icon        string    `json:"icon,omitempty" db:"icon"`
	Features    []string  `json:"features" db:"features"`
	Order       int       `json:"order" db:"sort_order"`
	Active      bool      `json:"active" db:"active"`
	CreatedAt   time.Time `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time `json:"updated_at" db:"updated_at"`
}

type ContactForm struct {
	Name    string `json:"name" validate:"required,min=2,max=100"`
	Email   string `json:"email" validate:"required,email"`
	Subject string `json:"subject" validate:"required,min=5,max=200"`
	Message string `json:"message" validate:"required,min=10,max=5000"`
}

type ContactSubmission struct {
	ID        uuid.UUID `json:"id" db:"id"`
	Name      string    `json:"name" db:"name"`
	Email     string    `json:"email" db:"email"`
	Subject   string    `json:"subject" db:"subject"`
	Message   string    `json:"message" db:"message"`
	Status    string    `json:"status" db:"status"`
	CreatedAt time.Time `json:"created_at" db:"created_at"`
	UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
}

type APIResponse struct {
	Success bool        `json:"success"`
	Data    interface{} `json:"data,omitempty"`
	Error   *APIError   `json:"error,omitempty"`
	Meta    *Meta       `json:"meta,omitempty"`
}

type APIError struct {
	Code    string `json:"code"`
	Message string `json:"message"`
	Details string `json:"details,omitempty"`
}

type Meta struct {
	Page       int `json:"page,omitempty"`
	PageSize   int `json:"page_size,omitempty"`
	Total      int `json:"total,omitempty"`
	TotalPages int `json:"total_pages,omitempty"`
}

func SuccessResponse(data interface{}) *APIResponse {
	return &APIResponse{Success: true, Data: data}
}

func ErrorResponse(code, message, details string) *APIResponse {
	return &APIResponse{
		Success: false,
		Error: &APIError{
			Code:    code,
			Message: message,
			Details: details,
		},
	}
}

func PaginatedResponse(data interface{}, page, pageSize, total int) *APIResponse {
	totalPages := (total + pageSize - 1) / pageSize
	return &APIResponse{
		Success: true,
		Data:    data,
		Meta: &Meta{
			Page:       page,
			PageSize:   pageSize,
			Total:      total,
			TotalPages: totalPages,
		},
	}
}