105 lines
2.6 KiB
Go
105 lines
2.6 KiB
Go
package analytics
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import (
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"context"
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"fmt"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// TokenDistribution provides token distribution analytics
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type TokenDistribution struct {
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db *pgxpool.Pool
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chainID int
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}
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// NewTokenDistribution creates a new token distribution analyzer
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func NewTokenDistribution(db *pgxpool.Pool, chainID int) *TokenDistribution {
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return &TokenDistribution{
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db: db,
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chainID: chainID,
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}
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}
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// DistributionStats represents token distribution statistics
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type DistributionStats struct {
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Contract string
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Symbol string
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TotalSupply string
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Holders int
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Distribution map[string]string
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TopHolders []HolderInfo
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}
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// HolderInfo represents holder information
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type HolderInfo struct {
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Address string
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Balance string
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Percentage string
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}
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// GetTokenDistribution gets token distribution for a contract
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func (td *TokenDistribution) GetTokenDistribution(ctx context.Context, contract string, topN int) (*DistributionStats, error) {
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// Refresh materialized view
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_, err := td.db.Exec(ctx, `REFRESH MATERIALIZED VIEW CONCURRENTLY token_distribution`)
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if err != nil {
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// Ignore error if view doesn't exist yet
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}
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// Get distribution from materialized view
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query := `
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SELECT holder_count, total_balance
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FROM token_distribution
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WHERE token_contract = $1 AND chain_id = $2
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`
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var holders int
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var totalSupply string
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err = td.db.QueryRow(ctx, query, contract, td.chainID).Scan(&holders, &totalSupply)
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if err != nil {
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return nil, fmt.Errorf("failed to get distribution: %w", err)
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}
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// Get top holders
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topHoldersQuery := `
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SELECT address, balance
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FROM token_balances
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WHERE token_contract = $1 AND chain_id = $2 AND balance > 0
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ORDER BY balance DESC
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LIMIT $3
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`
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rows, err := td.db.Query(ctx, topHoldersQuery, contract, td.chainID, topN)
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if err != nil {
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return nil, fmt.Errorf("failed to get top holders: %w", err)
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}
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defer rows.Close()
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topHolders := []HolderInfo{}
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for rows.Next() {
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var holder HolderInfo
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if err := rows.Scan(&holder.Address, &holder.Balance); err != nil {
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continue
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}
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// Calculate percentage (simplified)
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holder.Percentage = "0.0" // TODO: Calculate from total supply
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topHolders = append(topHolders, holder)
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}
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stats := &DistributionStats{
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Contract: contract,
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Holders: holders,
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TotalSupply: totalSupply,
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Distribution: make(map[string]string),
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TopHolders: topHolders,
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}
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// Calculate distribution metrics
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stats.Distribution["top_10_percent"] = "0.0" // TODO: Calculate
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stats.Distribution["top_1_percent"] = "0.0" // TODO: Calculate
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stats.Distribution["gini_coefficient"] = "0.0" // TODO: Calculate
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return stats, nil
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}
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