package store

import (
	"context"
	"database/sql"
	"errors"
)

type MemberOverview struct {
	TenantID           int64  `db:"tenant_id"`
	MemberID           int64  `db:"member_id"`
	MemberNo           string `db:"member_no"`
	Username           string `db:"username"`
	Mobile             string `db:"mobile"`
	InviteCode         string `db:"invite_code"`
	MemberStatus       int    `db:"member_status"`
	MemberCategory     int    `db:"member_category"`
	CreditScore        int    `db:"credit_score"`
	AvatarAttachmentID int64  `db:"avatar_attachment_id"`
	AvatarURL          string `db:"avatar_url"`
	LevelID            int64  `db:"level_id"`
	LevelCode          string `db:"level_code"`
	LevelName          string `db:"level_name"`
	LevelIconURL       string `db:"level_icon_url"`
	CommissionRate     int    `db:"commission_rate"`
	AvailableAmount    int64  `db:"available_amount"`
	FrozenAmount       int64  `db:"frozen_amount"`
	TotalIncome        int64  `db:"total_income"`
	TotalExpense       int64  `db:"total_expense"`
	Currency           string `db:"currency"`
	WalletStatus       int    `db:"wallet_status"`
	WalletVersion      int    `db:"wallet_version"`
}

type AccountSecurity struct {
	PasswordHash      string `db:"password_hash"`
	TradePasswordHash string `db:"trade_password_hash"`
	MemberStatus      int    `db:"member_status"`
}

type Avatar struct {
	AttachmentID int64  `db:"attachment_id"`
	URL          string `db:"url"`
}

func (s *Store) MemberOverview(ctx context.Context, tenantID, memberID int64) (*MemberOverview, error) {
	if s == nil || s.db == nil {
		return nil, errors.New("store is unavailable")
	}
	var row MemberOverview
	err := s.db.GetContext(ctx, &row, `SELECT m.tenant_id,m.id AS member_id,m.member_no,m.username,m.mobile,
		m.invite_code,m.member_status,m.risk_status AS member_category,m.credit_score,
		COALESCE(p.avatar_attachment_id,0) AS avatar_attachment_id,COALESCE(a.file_url,'') AS avatar_url,
		COALESCE(l.id,0) AS level_id,COALESCE(l.level_code,'') AS level_code,
		COALESCE(l.name,'') AS level_name,COALESCE(l.icon_url,'') AS level_icon_url,
		COALESCE(lv.commission_rate,0) AS commission_rate,
		COALESCE(w.available_amount,0) AS available_amount,COALESCE(w.frozen_amount,0) AS frozen_amount,
		COALESCE(w.total_income,0) AS total_income,COALESCE(w.total_expense,0) AS total_expense,
		COALESCE(w.currency,'CNY') AS currency,COALESCE(w.account_status,1) AS wallet_status,
		COALESCE(w.version,0) AS wallet_version
		FROM hg_app_member m
		LEFT JOIN hg_app_member_profile p ON p.tenant_id=m.tenant_id AND p.member_id=m.id
		LEFT JOIN hg_sys_attachment a ON a.id=p.avatar_attachment_id AND a.status=1
		LEFT JOIN hg_app_member_level l ON l.tenant_id=m.tenant_id AND l.id=m.level_id AND l.deleted_at IS NULL
		LEFT JOIN hg_app_member_level_version lv ON lv.tenant_id=l.tenant_id AND lv.id=l.current_version_id
		LEFT JOIN hg_wallet_account w ON w.tenant_id=m.tenant_id AND w.member_id=m.id AND w.currency='CNY'
		WHERE m.tenant_id=? AND m.id=? AND m.member_status=1 AND m.deleted_at IS NULL LIMIT 1`, tenantID, memberID)
	if errors.Is(err, sql.ErrNoRows) {
		return nil, ErrAccountNotFound
	}
	return &row, err
}

func (s *Store) UpdateAvatar(ctx context.Context, tenantID, memberID, attachmentID int64) (*Avatar, error) {
	if s == nil || s.db == nil {
		return nil, errors.New("store is unavailable")
	}
	tx, err := s.db.BeginTxx(ctx, nil)
	if err != nil {
		return nil, err
	}
	defer tx.Rollback()
	var activeMemberID int64
	err = tx.GetContext(ctx, &activeMemberID, `SELECT id FROM hg_app_member
		WHERE tenant_id=? AND id=? AND member_status=1 AND deleted_at IS NULL LIMIT 1 FOR UPDATE`, tenantID, memberID)
	if errors.Is(err, sql.ErrNoRows) {
		return nil, ErrAccountNotFound
	}
	if err != nil {
		return nil, err
	}

	var avatar Avatar
	err = tx.GetContext(ctx, &avatar, `SELECT id AS attachment_id,COALESCE(file_url,'') AS url FROM hg_sys_attachment
		WHERE id=? AND app_id='workbench' AND member_id=? AND status=1
		AND mime_type LIKE 'image/%' LIMIT 1 FOR UPDATE`, attachmentID, memberID)
	if errors.Is(err, sql.ErrNoRows) {
		return nil, ErrAttachmentInvalid
	}
	if err != nil {
		return nil, err
	}
	_, err = tx.ExecContext(ctx, `INSERT INTO hg_app_member_profile
		(tenant_id,member_id,avatar_attachment_id,created_by,updated_by)
		VALUES(?,?,?,0,0) ON DUPLICATE KEY UPDATE avatar_attachment_id=VALUES(avatar_attachment_id),updated_at=CURRENT_TIMESTAMP(3)`,
		tenantID, memberID, attachmentID)
	if err != nil {
		return nil, err
	}
	if err := tx.Commit(); err != nil {
		return nil, err
	}
	return &avatar, nil
}

func (s *Store) AccountSecurity(ctx context.Context, tenantID, memberID int64) (*AccountSecurity, error) {
	if s == nil || s.db == nil {
		return nil, errors.New("store is unavailable")
	}
	var row AccountSecurity
	err := s.db.GetContext(ctx, &row, `SELECT password_hash,trade_password_hash,member_status
		FROM hg_app_member WHERE tenant_id=? AND id=? AND member_status=1 AND deleted_at IS NULL LIMIT 1`, tenantID, memberID)
	if errors.Is(err, sql.ErrNoRows) {
		return nil, ErrAccountNotFound
	}
	return &row, err
}

func (s *Store) UpdateLoginPassword(ctx context.Context, tenantID, memberID int64, oldHash, newHash string) error {
	result, err := s.db.ExecContext(ctx, `UPDATE hg_app_member SET password_hash=?,updated_at=CURRENT_TIMESTAMP(3)
		WHERE tenant_id=? AND id=? AND password_hash=? AND member_status=1 AND deleted_at IS NULL`,
		newHash, tenantID, memberID, oldHash)
	if err != nil {
		return err
	}
	affected, err := result.RowsAffected()
	if err != nil {
		return err
	}
	if affected != 1 {
		return ErrConcurrentUpdate
	}
	return nil
}

func (s *Store) UpdateTradePassword(ctx context.Context, tenantID, memberID int64, oldHash, newHash string) error {
	result, err := s.db.ExecContext(ctx, `UPDATE hg_app_member SET trade_password_hash=?,updated_at=CURRENT_TIMESTAMP(3)
		WHERE tenant_id=? AND id=? AND trade_password_hash=? AND member_status=1 AND deleted_at IS NULL`,
		newHash, tenantID, memberID, oldHash)
	if err != nil {
		return err
	}
	affected, err := result.RowsAffected()
	if err != nil {
		return err
	}
	if affected != 1 {
		return ErrConcurrentUpdate
	}
	return nil
}