package domain

import "time"

type SubCourseLevel string

const (
	SubCourseLevelBeginner     SubCourseLevel = "BEGINNER"
	SubCourseLevelIntermediate SubCourseLevel = "INTERMEDIATE"
	SubCourseLevelAdvanced     SubCourseLevel = "ADVANCED"
)

type ContentStatus string

const (
	ContentStatusDraft     ContentStatus = "DRAFT"
	ContentStatusPublished ContentStatus = "PUBLISHED"
	ContentStatusInactive  ContentStatus = "INACTIVE"
	ContentStatusArchived  ContentStatus = "ARCHIVED"
)

type TreeSubCourse struct {
	ID    int64
	Title string
	Level string
}

type TreeCourse struct {
	ID         int64
	Title      string
	SubCourses []TreeSubCourse
}

type CourseCategory struct {
	ID        int64
	Name      string
	IsActive  bool
	CreatedAt time.Time
}

type Course struct {
	ID            int64
	CategoryID    int64
	Title         string
	Description   *string
	Thumbnail     *string
	IntroVideoURL *string
	IsActive      bool
}

type SubCourse struct {
	ID           int64
	CourseID     int64
	Title        string
	Description  *string
	Thumbnail    *string
	DisplayOrder int32
	Level        string
	IsActive     bool
}

type SubCourseVideo struct {
	ID           int64
	SubCourseID  int64
	Title        string
	Description  *string
	VideoURL     string
	Duration     int32
	Resolution   *string
	InstructorID *string
	Thumbnail    *string
	Visibility   *string
	DisplayOrder int32
	IsPublished  bool
	PublishDate  *time.Time
	Status       string
	// Vimeo-specific fields
	VimeoID         *string
	VimeoEmbedURL   *string
	VimeoPlayerHTML *string
	VimeoStatus     *string
}

type VideoHostProvider string

const (
	VideoHostProviderDirect VideoHostProvider = "DIRECT"
	VideoHostProviderVimeo  VideoHostProvider = "VIMEO"
)

// Learning Path types — full nested structure for a course
type LearningPathVideo struct {
	ID                int64   `json:"id"`
	Title             string  `json:"title"`
	Description       *string `json:"description,omitempty"`
	VideoURL          string  `json:"video_url"`
	Duration          int32   `json:"duration"`
	Resolution        *string `json:"resolution,omitempty"`
	DisplayOrder      int32   `json:"display_order"`
	VimeoID           *string `json:"vimeo_id,omitempty"`
	VimeoEmbedURL     *string `json:"vimeo_embed_url,omitempty"`
	VideoHostProvider *string `json:"video_host_provider,omitempty"`
}

type LearningPathPractice struct {
	ID            int64   `json:"id"`
	Title         string  `json:"title"`
	Description   *string `json:"description,omitempty"`
	Persona       *string `json:"persona,omitempty"`
	Status        string  `json:"status"`
	QuestionCount int64   `json:"question_count"`
}

type LearningPathPrerequisite struct {
	SubCourseID int64  `json:"sub_course_id"`
	Title       string `json:"title"`
	Level       string `json:"level"`
}

type LearningPathSubCourse struct {
	ID                int64                      `json:"id"`
	Title             string                     `json:"title"`
	Description       *string                    `json:"description,omitempty"`
	Thumbnail         *string                    `json:"thumbnail,omitempty"`
	DisplayOrder      int32                      `json:"display_order"`
	Level             string                     `json:"level"`
	PrerequisiteCount int64                      `json:"prerequisite_count"`
	VideoCount        int64                      `json:"video_count"`
	PracticeCount     int64                      `json:"practice_count"`
	Prerequisites     []LearningPathPrerequisite `json:"prerequisites"`
	Videos            []LearningPathVideo        `json:"videos"`
	Practices         []LearningPathPractice     `json:"practices"`
}

type LearningPath struct {
	CourseID      int64                   `json:"course_id"`
	CourseTitle   string                  `json:"course_title"`
	Description   *string                 `json:"description,omitempty"`
	Thumbnail     *string                 `json:"thumbnail,omitempty"`
	IntroVideoURL *string                 `json:"intro_video_url,omitempty"`
	CategoryID    int64                   `json:"category_id"`
	CategoryName  string                  `json:"category_name"`
	SubCourses    []LearningPathSubCourse `json:"sub_courses"`
}