package plugin

import (
	"context"

	"github.com/jackc/pgx/v5"
)

// SymposiumSeeder provides Symposium data-seeding and lookup operations for
// cross-plugin use via PluginBridge. Template plugins retrieve this interface
// instead of importing the Symposium database package directly.
//
// All Seed* methods are idempotent: existing rows are returned, not duplicated.
type SymposiumSeeder interface {
	// Wiki
	SeedWikiCategory(ctx context.Context, tx pgx.Tx, name, slug, description string, sortOrder int32) (string, error)
	SeedWikiArticle(ctx context.Context, tx pgx.Tx, title, slug, categoryID, excerpt string, contentJSON []byte) error

	// Courses
	SeedCourse(ctx context.Context, tx pgx.Tx, p SeedCourseParams) (string, error)
	SeedCourseSection(ctx context.Context, tx pgx.Tx, courseID, title string, position int32) (string, error)
	SeedLesson(ctx context.Context, tx pgx.Tx, courseID, sectionID string, p SeedLessonParams) (string, error)

	// Quizzes
	SeedQuiz(ctx context.Context, tx pgx.Tx, title string, passThreshold int32) (string, error)
	SeedQuizQuestion(ctx context.Context, tx pgx.Tx, quizID string, p SeedQuizQuestionParams) (string, error)

	// Community
	SeedCommunityCategory(ctx context.Context, tx pgx.Tx, name, slug, description, icon string, position, minTierLevel int32) (string, error)

	// Course categories & tags
	SeedCourseCategory(ctx context.Context, tx pgx.Tx, name, slug string, description *string, position int32) error
	SeedCourseTag(ctx context.Context, tx pgx.Tx, name, slug string, position *int32) error

	// Lookups — return the entity ID or an error if not found.
	GetCourseBySlug(ctx context.Context, tx pgx.Tx, slug string) (string, error)
	GetCommunityCategoryBySlug(ctx context.Context, tx pgx.Tx, slug string) (string, error)

	// Runtime queries
	GetUserCourseProgress(ctx context.Context, pool Pool, userID string) ([]CourseProgressItem, error)
}

// SeedCourseParams holds the parameters for seeding a course.
type SeedCourseParams struct {
	Title                    string
	Slug                     string
	Description              string
	CertificateEnabled       bool
	MinTierLevel             int32
	DifficultyLevel          string
	EstimatedDurationMinutes int32
}

// SeedLessonParams holds the parameters for seeding a lesson.
type SeedLessonParams struct {
	Title          string
	Slug           string
	LessonType     string
	ContentJSON    []byte
	QuizID         string
	Position       int32
	IsFreePreview  bool
	CompletionMode string
}

// SeedQuizQuestionParams holds the parameters for seeding a quiz question.
type SeedQuizQuestionParams struct {
	QuestionType  string
	QuestionText  string
	Options       []map[string]any
	CorrectAnswer string
	Explanation   string
	Position      int32
	Rubric        string
	ScenarioText  string
}

// CourseProgressItem is a lightweight view of a user's progress in one course.
type CourseProgressItem struct {
	CourseTitle   string
	CourseSlug    string
	NextLesson   string
	DoneCount    int
	TotalLessons int
}

// MessengerSeeder provides Messenger data-seeding operations for cross-plugin
// use via PluginBridge. Template plugins retrieve this interface instead of
// importing the Messenger database package directly.
type MessengerSeeder interface {
	CountMessagesForPair(ctx context.Context, tx pgx.Tx, participantPairID string) (int64, error)
	InsertMessage(ctx context.Context, tx pgx.Tx, p InsertMessageParams) error
}

// InsertMessageParams holds the parameters for inserting a messenger message.
type InsertMessageParams struct {
	SenderType           string
	SenderID             string
	SenderDisplayName    string
	RecipientType        string
	RecipientID          string
	RecipientDisplayName string
	BodyMarkdown         string
	ParticipantPairID    string
}