134 lines
4.1 KiB
Go
134 lines
4.1 KiB
Go
package database
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import (
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"database/sql"
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"fmt"
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"github.com/google/uuid"
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"relay-server/helpers"
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"relay-server/model"
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)
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func CreateGroup(db *sql.DB, groupName string, userID uuid.UUID) (uuid.UUID, error) {
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createConversationQuery := `
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INSERT INTO Conversations (conversation_type, name)
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VALUES ('group', $1)
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RETURNING conversation_id AS group_id;
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`
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insertGroupAdminQuery := `
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INSERT INTO GroupAdmins (conversation_id, user_id, granted_by, is_owner)
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VALUES ($1, $2, $3, true)
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RETURNING granted_at;
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`
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// Create conversation
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var groupID uuid.UUID
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err := db.QueryRow(createConversationQuery, groupName).Scan(&groupID)
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if err != nil {
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return uuid.Nil, helpers.NewError(helpers.ErrInternal, "Failed to create group", fmt.Errorf("failed to create group: %w", err))
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}
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// Insert group admin (make user that created the group an admin)
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var grantedAt string
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err = db.QueryRow(insertGroupAdminQuery, groupID, userID, userID).Scan(&grantedAt)
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if err != nil {
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return uuid.Nil, helpers.NewError(helpers.ErrInternal, "Failed to create group", fmt.Errorf("failed to insert group admin: %w", err))
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}
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// Add self as group member
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_, err = AddMemberToGroup(db, userID, groupID)
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if err != nil {
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return uuid.Nil, err
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}
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// Insert group contact
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_, err = InsertContactByID(db, userID, groupID)
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if err != nil {
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return groupID, helpers.NewError(helpers.ErrInternal, "Failed to create group contact", fmt.Errorf("failed to insert group contact: %w", err))
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}
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return groupID, nil
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}
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func AddMemberToGroup(db *sql.DB, userID uuid.UUID, groupID uuid.UUID) (uuid.UUID, error) {
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query := `
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INSERT INTO Memberships (conversation_id, user_id)
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VALUES ($1, $2)
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ON CONFLICT DO NOTHING
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RETURNING user_id;
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`
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var memberID uuid.UUID
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err := db.QueryRow(query, groupID, userID).Scan(&memberID)
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if err != nil {
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return uuid.Nil, helpers.NewError(helpers.ErrInternal, "Failed to add member to group", fmt.Errorf("failed to add member to group: %w", err))
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}
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return memberID, nil
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}
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func GetMembers(db *sql.DB, groupID uuid.UUID) ([]*model.Member, error) {
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query := `
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SELECT
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a.user_id,
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a.username,
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CASE
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WHEN ga.user_id IS NOT NULL THEN TRUE
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ELSE FALSE
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END AS isAdmin,
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COALESCE(ga.is_owner, FALSE) AS isOwner
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FROM Memberships m
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JOIN Accounts a ON m.user_id = a.user_id
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LEFT JOIN GroupAdmins ga ON m.user_id = ga.user_id AND m.conversation_id = ga.conversation_id
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WHERE m.conversation_id = $1;
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`
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rows, err := db.Query(query, groupID)
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if err != nil {
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return []*model.Member{}, helpers.NewError(helpers.ErrInternal, "Failed to get members", fmt.Errorf("failed to get members: %w", err))
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}
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defer rows.Close()
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var members []*model.Member
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for rows.Next() {
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var member model.Member
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err = rows.Scan(&member.UserID, &member.Username, &member.IsAdmin, &member.IsOwner)
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if err != nil {
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return []*model.Member{}, helpers.NewError(helpers.ErrInternal, "Failed to get members", fmt.Errorf("failed to scan member: %w", err))
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}
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members = append(members, &member)
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}
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if err = rows.Err(); err != nil {
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return []*model.Member{}, helpers.NewError(helpers.ErrInternal, "Failed to get members", fmt.Errorf("error iterating members: %w", err))
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}
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return members, nil
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}
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func IsAdmin(db *sql.DB, userID uuid.UUID, conversationID uuid.UUID) (bool, error) {
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query := `
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SELECT COUNT(1) FROM GroupAdmins
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WHERE user_id = $1
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AND conversation_id = $2;
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`
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var count int
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err := db.QueryRow(query, userID, conversationID).Scan(&count)
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if err != nil {
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return false, helpers.NewError(helpers.ErrInternal, "Failed to check admin status", fmt.Errorf("failed to check admin status: %w", err))
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}
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return count > 0, nil
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}
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func IsMember(db *sql.DB, userID uuid.UUID, conversationID uuid.UUID) (bool, error) {
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query := `
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SELECT COUNT(1) FROM Memberships
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WHERE user_id = $1
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AND conversation_id = $2;
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`
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var count int
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err := db.QueryRow(query, userID, conversationID).Scan(&count)
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if err != nil {
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return false, helpers.NewError(helpers.ErrInternal, "Failed to check membership", fmt.Errorf("failed to check membership: %w", err))
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}
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return count > 0, nil
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}
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