package service

import (
    "context"
    "io"
    "mime/multipart"

    "tss-rocks-be/ent"
    "tss-rocks-be/internal/storage"
    "tss-rocks-be/internal/types"
)

// Service interface defines all business logic operations
type Service interface {
    // User operations
    CreateUser(ctx context.Context, username, email, password string, role string) (*ent.User, error)
    GetUser(ctx context.Context, id int) (*ent.User, error)
    GetUserByUsername(ctx context.Context, username string) (*ent.User, error)
    GetUserByEmail(ctx context.Context, email string) (*ent.User, error)
    ValidatePassword(ctx context.Context, user *ent.User, password string) bool
    VerifyPassword(ctx context.Context, userID int, password string) error
    UpdateUser(ctx context.Context, userID int, input *types.UpdateUserInput) (*ent.User, error)
    DeleteUser(ctx context.Context, userID int) error
    ListUsers(ctx context.Context, params *types.ListUsersParams) ([]*ent.User, error)
    GetUserRoles(ctx context.Context, userID int) ([]*ent.Role, error)

    // Category operations
    CreateCategory(ctx context.Context) (*ent.Category, error)
    AddCategoryContent(ctx context.Context, categoryID int, langCode, name, description, slug string) (*ent.CategoryContent, error)
    GetCategoryBySlug(ctx context.Context, langCode, slug string) (*ent.Category, error)
    ListCategories(ctx context.Context, langCode string) ([]*ent.Category, error)
    GetCategories(ctx context.Context, langCode string) ([]*ent.Category, error)

    // Post operations
    CreatePost(ctx context.Context, status string, categoryIDs []int) (*ent.Post, error)
    AddPostContent(ctx context.Context, postID int, langCode, title, content, summary string, metaKeywords, metaDescription string) (*ent.PostContent, error)
    GetPostBySlug(ctx context.Context, langCode, slug string) (*ent.Post, error)
    ListPosts(ctx context.Context, langCode string, categoryIDs []int, limit, offset int) ([]*ent.Post, error)

    // Media operations
    ListMedia(ctx context.Context, limit, offset int) ([]*ent.Media, error)
    Upload(ctx context.Context, file *multipart.FileHeader, userID int) (*ent.Media, error)
    GetMedia(ctx context.Context, id int) (*ent.Media, error)
    GetFile(ctx context.Context, id int) (io.ReadCloser, *storage.FileInfo, error)
    DeleteMedia(ctx context.Context, id int, userID int) error

    // Contributor operations
    CreateContributor(ctx context.Context, name string, avatarURL, bio *string) (*ent.Contributor, error)
    AddContributorSocialLink(ctx context.Context, contributorID int, linkType, name, value string) (*ent.ContributorSocialLink, error)
    GetContributorByID(ctx context.Context, id int) (*ent.Contributor, error)
    ListContributors(ctx context.Context) ([]*ent.Contributor, error)

    // Daily operations
    CreateDaily(ctx context.Context, id string, categoryID int, imageURL string) (*ent.Daily, error)
    AddDailyContent(ctx context.Context, dailyID string, langCode, quote string) (*ent.DailyContent, error)
    GetDailyByID(ctx context.Context, id string) (*ent.Daily, error)
    ListDailies(ctx context.Context, langCode string, categoryID *int, limit, offset int) ([]*ent.Daily, error)

    // RBAC operations
    InitializeRBAC(ctx context.Context) error
    AssignRole(ctx context.Context, userID int, role string) error
    RemoveRole(ctx context.Context, userID int, role string) error
    HasPermission(ctx context.Context, userID int, permission string) (bool, error)

    // Token blacklist
    GetTokenBlacklist() *TokenBlacklist

    // Generic operations
    Delete(ctx context.Context, id int, currentUserID int) error
    DeleteDaily(ctx context.Context, id string, currentUserID int) error
}