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import { Cardano, MultipleChoiceSearchFilter, QueryStakePoolsArgs } from '@cardano-sdk/core';
import { OrderByOptions, SubQuery } from './types';
import { findLastEpoch } from '../../util';
import { getStakePoolSortType } from './util';
export const findLastEpochWithData = `
SELECT
epoch."no",
ep.optimal_pool_count
FROM epoch
LEFT JOIN epoch_param ep ON
ep.epoch_no = epoch."no"
ORDER BY no DESC
LIMIT 1`;
export const findPoolsMetrics = `
WITH current_epoch AS (
SELECT
e."no" AS epoch_no,
optimal_pool_count
FROM epoch e
JOIN epoch_param ep ON
ep.epoch_no = e."no"
ORDER BY e.no DESC LIMIT 1
),
blocks_created AS (
SELECT
COUNT(1) AS blocks_created,
pool_hash.id AS pool_hash_id
FROM block
JOIN slot_leader ON block.slot_leader_id = slot_leader.id
JOIN pool_hash ON slot_leader.pool_hash_id = pool_hash.id
WHERE pool_hash.id = ANY($1)
GROUP BY pool_hash.id
),
pools_delegates AS (
SELECT
ph.id AS pool_hash_id,
sa.id AS addr_id
FROM pool_hash ph
JOIN pool_update pu
ON pu.id = (
SELECT id
FROM pool_update pu2
WHERE pu2.hash_id = ph.id
ORDER BY id DESC
LIMIT 1
)
LEFT JOIN pool_retire pr
ON pr.id = (
SELECT id
FROM pool_retire pr2
WHERE pr2.hash_id = ph.id
ORDER BY id desc
LIMIT 1
)
JOIN stake_address sa ON
sa.id = pu.reward_addr_id
WHERE (pr.id is null or pr.announced_tx_id < pu.registered_tx_id) and
ph.id = ANY($1)
),
total_rewards_of_reward_acc AS (
SELECT
SUM(r.amount) AS amount,
pd.pool_hash_id
FROM reward r
JOIN pools_delegates pd ON
pd.addr_id = r.addr_id
GROUP BY pd.pool_hash_id
),
total_withdraws_of_reward_acc AS (
SELECT
SUM(w.amount) AS amount,
pd.pool_hash_id
FROM withdrawal w
JOIN pools_delegates pd ON
pd.addr_id = w.addr_id
GROUP BY pd.pool_hash_id
),
owners_total_utxos AS (
SELECT
sum(tx_out.value) AS amount,
pu.hash_id
FROM tx_out
JOIN pool_owner o ON
o.addr_id = tx_out.stake_address_id
JOIN pool_update pu ON
o.pool_update_id = pu.id
AND pu.hash_id = ANY($1)
LEFT JOIN tx_in ON
tx_out.tx_id = tx_in.tx_out_id AND
tx_out.index = tx_in.tx_out_index
WHERE
tx_in.tx_out_id IS null
GROUP BY pu.hash_id
),
active_stake AS (
SELECT
sum(es.amount) AS active_stake,
es.pool_id AS pool_hash_id
FROM epoch_stake es
WHERE es.pool_id = ANY($1)
AND es.epoch_no = (SELECT epoch_no FROM current_epoch)
GROUP BY es.pool_id
),
active_delegations AS (
SELECT
d1.addr_id,
ph.id AS pool_hash_id
FROM pool_hash ph
JOIN delegation d1 ON
ph.id = d1.pool_hash_id
WHERE ph.id = ANY($1)
AND NOT EXISTS
(SELECT TRUE
FROM delegation d2
WHERE d2.addr_id=d1.addr_id
AND d2.tx_id>d1.tx_id)
AND NOT EXISTS
(SELECT TRUE
FROM stake_deregistration
WHERE stake_deregistration.addr_id=d1.addr_id
AND stake_deregistration.tx_id>d1.tx_id)
),
delegators AS (
SELECT
COUNT(1) AS delegators,
d.pool_hash_id
FROM active_delegations d
GROUP BY d.pool_hash_id
),
total_utxos AS (
SELECT
COALESCE(SUM(tx_out.value),0) AS total_amount,
ad.pool_hash_id
FROM active_delegations ad
JOIN tx_out ON
tx_out.stake_address_id = ad.addr_id
LEFT JOIN tx_in ON
tx_out.tx_id = tx_in.tx_out_id AND
tx_out.index = tx_in.tx_out_index
WHERE
tx_in.tx_out_id IS NULL
GROUP BY ad.pool_hash_id
),
total_rewards AS (
SELECT
COALESCE(SUM(r.amount),0) AS total_amount,
ad.pool_hash_id
FROM active_delegations ad
JOIN reward r ON
ad.addr_id = r.addr_id
WHERE r.spendable_epoch <= (SELECT epoch_no FROM current_epoch)
GROUP BY ad.pool_hash_id
),
total_withdraws AS (
SELECT
COALESCE(SUM(w.amount),0) AS total_amount,
ad.pool_hash_id
FROM withdrawal w
JOIN active_delegations ad ON ad.addr_id = w.addr_id
GROUP BY ad.pool_hash_id
),
live_stake AS (
SELECT
(total_utxos.total_amount +
COALESCE(tr.total_amount,0) -
COALESCE(tw.total_amount,0)) AS live_stake,
total_utxos.pool_hash_id
FROM total_utxos
LEFT JOIN total_rewards tr ON
total_utxos.pool_hash_id = tr.pool_hash_id
LEFT JOIN total_withdraws tw ON
total_utxos.pool_hash_id = tw.pool_hash_id
)
SELECT
COALESCE(bc.blocks_created,0)::integer AS blocks_created,
COALESCE(d.delegators,0)::integer AS delegators,
COALESCE(a_stake.active_stake,0) AS active_stake,
COALESCE(l_stake.live_stake,0) AS live_stake,
(COALESCE(tr.amount,0) - COALESCE(tw.amount,0) + COALESCE (otu.amount,0))
AS live_pledge,
CASE
WHEN $2::numeric = 0::numeric
THEN 0::numeric
ELSE
(
COALESCE(l_stake.live_stake,0::numeric) *
((SELECT optimal_pool_count FROM current_epoch)::NUMERIC) /
($2::numeric)
)::numeric
END AS saturation,
CASE
WHEN (COALESCE(l_stake.live_stake,0))::numeric = 0::numeric
THEN 0::numeric
ELSE
(COALESCE(a_stake.active_stake,0)/COALESCE(l_stake.live_stake,0))
END AS active_stake_percentage,
ph.id AS pool_hash_id
FROM pool_hash ph
LEFT JOIN blocks_created bc ON
bc.pool_hash_id = ph.id
LEFT JOIN delegators d ON
d.pool_hash_id = ph.id
LEFT JOIN active_stake a_stake ON
a_stake.pool_hash_id = ph.id
LEFT JOIN live_stake l_stake ON
l_stake.pool_hash_id = ph.id
LEFT JOIN total_rewards_of_reward_acc AS tr ON
tr.pool_hash_id = ph.id
LEFT JOIN total_withdraws_of_reward_acc AS tw ON
tw.pool_hash_id = ph.id
LEFT JOIN owners_total_utxos otu ON
otu.hash_id = ph.id
WHERE id = ANY($1)
`;
export const findBlockfrostPoolsMetrics = `
SELECT
COALESCE(blocks_created, 0) AS blocks_created,
COALESCE(delegators, 0) AS delegators,
COALESCE(active_stake, 0) AS active_stake,
COALESCE(live_stake, 0) AS live_stake,
COALESCE(live_pledge, 0) AS live_pledge,
COALESCE(saturation, 0) AS saturation,
COALESCE(active_stake / NULLIF(live_stake, 0), 0) AS active_stake_percentage,
COALESCE(reward_address, '') AS reward_address,
COALESCE(extra, '[[],[],[]]') AS extra,
COALESCE(status, 'retired') AS status,
pool_hash_id
FROM pool_hash
LEFT JOIN blockfrost.pool_metric ON
pool_hash_id = id
WHERE
id = ANY($1)
`;
const epochRewardsSubqueries = (epochLength: number, limit?: number) => `
WITH epochs AS (
SELECT
"no" AS epoch_no,
CASE
WHEN "no" = (SELECT MAX("no") FROM epoch)
THEN EXTRACT(EPOCH FROM (end_time - start_time)) * 1000
ELSE
${epochLength}
END AS epoch_length
FROM epoch
ORDER BY no DESC
${limit !== undefined ? `LIMIT ${limit}` : ''}
),
pool_mixed_rewards_per_epoch AS (
SELECT
reward.pool_id AS hash_id,
epochs.epoch_no,
reward.type,
SUM(reward.amount) AS amount
FROM epochs
JOIN reward
ON reward.earned_epoch = epochs.epoch_no
AND reward.pool_id = ANY($1)
WHERE reward.type IN ('leader', 'member')
GROUP BY reward.pool_id, epochs.epoch_no, reward.type
),
pool_rewards_per_epoch AS (
SELECT
leader.hash_id,
leader.epoch_no,
leader.amount AS leader_rewards,
member.amount AS member_rewards
FROM pool_mixed_rewards_per_epoch AS leader
JOIN pool_mixed_rewards_per_epoch AS member
ON leader.hash_id = member.hash_id
AND leader.epoch_no = member.epoch_no
WHERE leader.type = 'leader'
AND member.type = 'member'
),
pool_stake_per_epoch AS (
SELECT
epoch_stake.pool_id AS hash_id,
epochs.epoch_no,
SUM(epoch_stake.amount) AS active_stake
FROM epochs
JOIN epoch_stake
ON epoch_stake.epoch_no = epochs.epoch_no
AND epoch_stake.pool_id = ANY($1)
GROUP BY epoch_stake.pool_id, epochs.epoch_no
),
epoch_rewards AS (
SELECT
epochs.epoch_no,
epochs.epoch_length,
stake.hash_id,
COALESCE(rewards.leader_rewards, 0) AS leader_rewards,
COALESCE(rewards.member_rewards, 0) AS member_rewards,
COALESCE(stake.active_stake, 0) AS active_stake,
pool.pledge,
COALESCE(rewards.member_rewards / NULLIF(stake.active_stake - pool.pledge, 0), 0)::DOUBLE PRECISION AS member_roi
FROM pool_stake_per_epoch AS stake
JOIN epochs
ON epochs.epoch_no = stake.epoch_no
LEFT JOIN pool_rewards_per_epoch AS rewards
ON rewards.epoch_no = stake.epoch_no
AND rewards.hash_id = stake.hash_id
JOIN pool_update AS pool
ON pool.id = (
SELECT id
FROM pool_update
WHERE hash_id = stake.hash_id
AND active_epoch_no <= epochs.epoch_no
ORDER BY id DESC
LIMIT 1
)
)`;
export const findPoolAPY = (epochLength: number, limit?: number) => `
${epochRewardsSubqueries(epochLength, limit)}
SELECT
hash_id,
COALESCE(
(SUM(member_rewards) / NULLIF(SUM(active_stake) - SUM(pledge), 0)) /
NULLIF(${epochLength} / 86400000, 0) * 365,
0
)::DOUBLE PRECISION AS apy
FROM epoch_rewards
WHERE
epoch_no < (SELECT MAX("no") - 1 FROM epoch)
GROUP BY
hash_id
`;
export const findPools = `
SELECT
ph.id,
pu.id AS update_id
FROM pool_hash ph
JOIN pool_update pu
ON pu.id = (
SELECT id
FROM pool_update pu2
WHERE pu2.hash_id = ph.id
ORDER BY id DESC
LIMIT 1
)
`;
export const findPoolsRelays = `
SELECT
hash_id,
update_id,
ipv4,
ipv6,
port,
dns_name,
dns_srv_name AS hostname --fixme: check this is correct
FROM pool_relay
JOIN pool_update
ON pool_relay.update_id = pool_update.id
WHERE update_id = ANY($1)
`;
export const findPoolsOwners = `
SELECT
address."view" AS address,
pool_update.hash_id AS hash_id
FROM pool_owner AS "owner"
JOIN pool_update
ON "owner".pool_update_id = pool_update.id
JOIN stake_address AS address
ON "owner".addr_id = address.id
WHERE pool_update.id = ANY($1)
`;
export const findPoolsRegistrations = `
SELECT
tx.hash AS tx_hash,
pu.hash_id AS hash_id,
active_epoch_no
FROM pool_update pu
JOIN tx
ON tx.id = pu.registered_tx_id
WHERE pu.hash_id = ANY($1)
ORDER BY pu.id DESC
`;
export const findPoolsRetirements = `
SELECT
tx.hash AS tx_hash,
pr.hash_id AS hash_id,
retiring_epoch
FROM pool_retire pr
JOIN tx
ON tx.id = pr.announced_tx_id
WHERE pr.hash_id = ANY($1)
`;
export const poolsByPledgeMetSubqueries: readonly SubQuery[] = [
{
id: { name: 'pools_delegated' },
query: `
SELECT
ph.id,
ph.view,
pu.id AS update_id,
pu.active_epoch_no,
pu.pledge,
sa.id AS stake_address_id
FROM pool_hash ph
JOIN pool_update pu
ON pu.id = (
SELECT id
FROM pool_update pu2
WHERE pu2.hash_id = ph.id
ORDER BY id DESC
LIMIT 1
)
JOIN stake_address sa ON
sa.id = pu.reward_addr_id
LEFT JOIN delegation d1 ON
sa.id = d1.addr_id
WHERE NOT EXISTS
(SELECT TRUE
FROM delegation d2
WHERE d2.addr_id=d1.addr_id
AND d2.tx_id>d1.tx_id)
AND NOT EXISTS
(SELECT TRUE
FROM stake_deregistration
WHERE stake_deregistration.addr_id=d1.addr_id
AND stake_deregistration.tx_id>d1.tx_id)
`
},
{
id: { name: 'pool_owner_rewards' },
query: `
SELECT
COALESCE(SUM(r.amount),0) AS total_amount,
sa.id AS stake_address_id,
r.pool_id
FROM reward r
JOIN stake_address sa ON
sa.id = r.addr_id
WHERE sa.id in (SELECT stake_address_id FROM pools_delegated) and
r.spendable_epoch <= (SELECT "no" FROM current_epoch)
GROUP BY r.pool_id, sa.id`
},
{
id: { name: 'pool_owner_withdraws' },
query: `
SELECT
COALESCE(SUM(w.amount),0) AS total_amount,
sa.id AS stake_address_id
FROM withdrawal w
JOIN stake_address sa ON sa.id = w.addr_id
JOIN pools_delegated pool ON pool.stake_address_id = sa.id
GROUP BY sa.id`
},
{
id: { name: 'reward_acc_balance' },
query: `
SELECT
(r.total_amount - w.total_amount) AS total_amount,
r.stake_address_id,
r.pool_id
FROM pool_owner_rewards r
JOIN pool_owner_withdraws w
ON r.stake_address_id = w.stake_address_id `
},
{
id: { name: 'owners_utxo' },
query: `
SELECT
tx_out.value AS value,
pu.hash_id
FROM tx_out
JOIN pool_owner o ON
o.addr_id = tx_out.stake_address_id
JOIN pool_update pu ON
o.pool_update_id = pu.id
AND pu.hash_id IN (SELECT id FROM pools_delegated)
LEFT JOIN tx_in ON
tx_out.tx_id = tx_in.tx_out_id AND
tx_out.index = tx_in.tx_out_index
WHERE
tx_in.tx_out_id IS NULL`
},
{
id: { name: 'owners_balance' },
query: `
SELECT
SUM(value) AS total_amount,
hash_id AS pool_hash_id
FROM owners_utxo
GROUP BY hash_id`
}
];
export const POOLS_WITH_PLEDGE_MET = {
JOIN_CLAUSE: `
LEFT JOIN owners_balance o_balance ON
ph.id = o_balance.pool_hash_id
LEFT JOIN reward_acc_balance r_balance ON
r_balance.pool_id = ph.id`,
SELECT_CLAUSE: `
SELECT
ph.id,
ph.update_id
FROM pools_delegated AS ph`,
WHERE_CLAUSE: (metPledge: boolean) => `
((COALESCE(o_balance.total_amount,0) +
COALESCE (r_balance.total_amount, 0))
${metPledge ? ' >=' : '<'} ph.pledge)`,
WITH_CLAUSE: `WITH
current_epoch AS (${findLastEpoch}),
${poolsByPledgeMetSubqueries.map((subQuery) => `${subQuery.id.name} AS (${subQuery.query})`).join(', ')}
`
};
export const STATUS_QUERY = {
SELECT_CLAUSE: `
SELECT
ph.id,
pu.id AS update_id
FROM pool_hash ph
JOIN pool_update pu
ON pu.id = (
SELECT id
FROM pool_update pu2
WHERE pu2.hash_id = ph.id
ORDER BY id DESC
LIMIT 1
)
LEFT JOIN pool_retire pr
ON pr.id = (
SELECT id
FROM pool_retire pr2
WHERE pr2.hash_id = ph.id
ORDER BY id desc
LIMIT 1
)
`,
WITH_CLAUSE: `WITH
current_epoch AS (${findLastEpoch})`
};
export const IDENTIFIER_QUERY = {
JOIN_CLAUSE: {
OFFLINE_METADATA: `
LEFT JOIN off_chain_pool_data pod
ON pod.pool_id = ph.id
`,
POOL_UPDATE: `
JOIN pool_update pu
ON pu.id = (
SELECT id
FROM pool_update pu2
WHERE pu2.hash_id = ph.id
ORDER BY id DESC
LIMIT 1
)`
},
SELECT_CLAUSE: `
SELECT
ph.id,
pu.id AS update_id
FROM pool_hash ph
`
};
export const getIdentifierFullJoinClause = () => `
${IDENTIFIER_QUERY.JOIN_CLAUSE.POOL_UPDATE}
${IDENTIFIER_QUERY.JOIN_CLAUSE.OFFLINE_METADATA}`;
export const findPoolsData = `
SELECT
pu.hash_id,
ph.hash_raw AS pool_hash,
pu.id AS update_id,
ph.view AS pool_id,
sa.view AS reward_address,
pu.reward_addr_id,
pu.pledge,
pu.fixed_cost,
pu.margin,
pu.vrf_key_hash,
metadata.url AS metadata_url,
metadata.hash AS metadata_hash,
pod.json AS offline_data
FROM pool_update pu
JOIN pool_hash ph ON
ph.id = pu.hash_id
JOIN stake_address sa ON
sa.id = pu.reward_addr_id
LEFT JOIN pool_metadata_ref metadata
ON metadata.id = pu.meta_id
LEFT JOIN off_chain_pool_data pod
ON metadata.id = pod.pmr_id
WHERE pu.id = ANY($1)
`;
export const findBlockfrostPoolsData = `
SELECT
pu.hash_id,
ph.hash_raw AS pool_hash,
pu.id AS update_id,
ph.view AS pool_id,
pu.reward_addr_id,
pu.pledge,
pu.fixed_cost,
pu.margin,
pu.vrf_key_hash,
metadata.url AS metadata_url,
metadata.hash AS metadata_hash,
pod.json AS offline_data
FROM pool_update pu
JOIN pool_hash ph ON
ph.id = pu.hash_id
LEFT JOIN pool_metadata_ref metadata
ON metadata.id = pu.meta_id
LEFT JOIN off_chain_pool_data pod
ON metadata.id = pod.pmr_id
WHERE pu.id = ANY($1)
`;
const toCaseInsensitiveParam = (_array: string[]) => `${_array.join('|')}`;
const toSimilarToString = (_array: string[]) => `%(${_array.join('|')})%`;
export const getIdentifierWhereClause = (
identifier: MultipleChoiceSearchFilter<
Partial<Pick<Cardano.PoolParameters, 'id'> & Pick<Cardano.StakePoolMetadata, 'name' | 'ticker'>>
>
) => {
const condition = identifier._condition ? ` ${identifier._condition} ` : ' or ';
const names = [];
const tickers = [];
const ids = [];
for (const value of identifier.values) {
value.id && ids.push(value.id);
value.ticker && tickers.push(value.ticker);
value.name && names.push(value.name);
}
const whereConditions = [];
const params = [];
if (names.length > 0) {
params.push(toCaseInsensitiveParam(names));
// eslint-disable-next-line quotes
whereConditions.push(`(pod."json" ->>'name')::varchar ~* $1`);
}
if (tickers.length > 0) {
params.push(toCaseInsensitiveParam(tickers));
whereConditions.push(`pod.ticker_name ~* $${params.length}`);
}
if (ids.length > 0) {
params.push(toSimilarToString(ids));
whereConditions.push(`ph.view SIMILAR TO $${params.length}`);
}
return { params, where: `(${whereConditions.join(condition)})` };
};
export const getStatusWhereClause = (
status: Cardano.StakePoolStatus[],
columns?: {
activeEpoch?: string;
}
) => {
const whereClause = [];
const activeEpochColumn = columns?.activeEpoch || 'pu.active_epoch_no';
if (status.includes(Cardano.StakePoolStatus.Retiring))
whereClause.push(
`(COALESCE(pr.retiring_epoch,0) > (SELECT "no" FROM current_epoch)
AND COALESCE(pr.retiring_epoch,0) > ${activeEpochColumn})`
);
if (status.includes(Cardano.StakePoolStatus.Retired))
whereClause.push(
`(COALESCE(pr.retiring_epoch,0) <= (SELECT "no" FROM current_epoch)
AND COALESCE(pr.retiring_epoch,0) > ${activeEpochColumn})`
);
if (status.includes(Cardano.StakePoolStatus.Activating))
whereClause.push(
`(${activeEpochColumn} > (SELECT "no" FROM current_epoch)
AND COALESCE(pr.retiring_epoch,0) <= ${activeEpochColumn})`
);
if (status.includes(Cardano.StakePoolStatus.Active))
whereClause.push(
`(${activeEpochColumn} <= (SELECT "no" FROM current_epoch)
AND COALESCE(pr.retiring_epoch,0) < ${activeEpochColumn})`
);
return `(${whereClause.join(' OR ')})`;
};
export const withPagination = (query: string, args: unknown[], pagination?: QueryStakePoolsArgs['pagination']) => {
if (pagination) {
return {
args: [...args, pagination.limit, pagination.startAt],
query: `${query} LIMIT $${args.length + 1} OFFSET $${args.length + 2}`
};
}
return { args, query };
};
const orderBy = (query: string, sort: OrderByOptions[]) =>
sort && sort.length > 0
? `${query} ORDER BY ${sort.map(({ field, order }) => `${field} ${order} NULLS LAST`).join(', ')}`
: query;
export const addSentenceToQuery = (query: string, sentence: string) => query + sentence;
export const buildOrQueryFromClauses = (clauses: SubQuery[]) => {
const uniqueIds = new Set();
const uniqueClauses = clauses.filter((clause) => {
const isDuplicate = uniqueIds.has(clause.id);
uniqueIds.add(clause.id);
if (!isDuplicate) {
return true;
}
});
const primarySubQueries = clauses.filter((clause) => clause.id.isPrimary);
return `
WITH ${uniqueClauses.map(({ id, query }) => `${id.name} AS (${query})`).join(', ')}
SELECT id, update_id
FROM
(${primarySubQueries.map((subQuery) => `SELECT id, update_id FROM ${subQuery.id.name}`).join(' UNION ')})
AS pools
GROUP BY id,update_id
ORDER BY id DESC
`;
};
export const findPoolStats = `
WITH current_epoch AS (
SELECT MAX(epoch_no) AS epoch_no
FROM block
),
last_pool_update AS (
SELECT
pool_update.hash_id,
pool_update.registered_tx_id,
pool_update.active_epoch_no
FROM pool_update
JOIN (
SELECT hash_id, MAX(registered_tx_id) AS tx_id
FROM pool_update
WHERE active_epoch_no <= (SELECT epoch_no FROM current_epoch)
GROUP BY hash_id
) AS last_update ON pool_update.hash_id = last_update.hash_id
AND pool_update.registered_tx_id = last_update.tx_id
),
last_pool_retire AS (
SELECT
pool_retire.hash_id,
MAX(pool_retire.announced_tx_id) AS announced_tx_id,
pool_retire.retiring_epoch FROM pool_retire
JOIN (
SELECT hash_id, MAX(retiring_epoch) AS epoch
FROM pool_retire
GROUP BY hash_id
) AS last_retired ON pool_retire.hash_id = last_retired.hash_id
AND pool_retire.retiring_epoch = last_retired.epoch
GROUP BY pool_retire.hash_id, pool_retire.retiring_epoch
)
SELECT
COUNT(
CASE WHEN pool_retire.hash_id IS NULL
OR (
pool_update.active_epoch_no > pool_retire.retiring_epoch
AND pool_retire.retiring_epoch <= (SELECT epoch_no FROM current_epoch)
) THEN 1 ELSE NULL END) AS active,
COUNT(
CASE WHEN pool_retire.hash_id IS NOT NULL
AND (
pool_update.active_epoch_no <= pool_retire.retiring_epoch
AND pool_retire.retiring_epoch <= (SELECT epoch_no FROM current_epoch)
) THEN 1 ELSE NULL END) AS retired,
COUNT(
CASE WHEN pool_retire.hash_id IS NOT NULL
AND (
pool_update.active_epoch_no <= pool_retire.retiring_epoch
AND pool_retire.retiring_epoch > (SELECT epoch_no FROM current_epoch)
) THEN 1 ELSE NULL END) AS retiring
FROM last_pool_update AS pool_update
LEFT JOIN last_pool_retire AS pool_retire
ON pool_update.hash_id = pool_retire.hash_id`;
const sortFieldMapping: Record<string, { field: string; secondary?: string[] }> = {
cost: { field: 'fixed_cost', secondary: ['margin'] },
name: { field: "lower((pod.json ->> 'name')::TEXT)" }
};
const mapSort = (sort: OrderByOptions | undefined) => {
Iif (!sort) return [];
const mapping = sortFieldMapping[sort.field];
if (!mapping) return [{ field: sort.field, order: sort.order }];
const secondarySorts = mapping.secondary?.map((field) => ({ field, order: sort.order })) ?? [];
return [{ field: mapping.field, order: sort.order }, ...secondarySorts];
};
export const withSort = (query: string, sort?: QueryStakePoolsArgs['sort'], defaultSort?: OrderByOptions[]) => {
if (!sort?.field && defaultSort) {
const defaultMappedSort = defaultSort.flatMap(mapSort);
return orderBy(query, defaultMappedSort);
}
Iif (!sort?.field) return query;
const sortType = getStakePoolSortType(sort.field);
const mappedSort = mapSort(sort);
switch (sortType) {
case 'data':
return orderBy(query, [...mappedSort, { field: 'pool_id', order: 'asc' }]);
case 'metrics':
return orderBy(query, [...mappedSort, { field: 'id', order: 'asc' }]);
case 'apy':
return orderBy(query, [...mappedSort, { field: 'hash_id', order: 'asc' }]);
default:
return orderBy(query, [...mappedSort]);
}
};
export const blockfrostQuery = {
SELECT: `
WITH pool_updates AS (
SELECT
hash_id,
MAX(id) AS update_id
FROM pool_update
GROUP BY hash_id
)
SELECT
ph.id,
pu.update_id
FROM pool_hash ph
JOIN pool_updates pu ON
pu.hash_id = ph.id`,
identifier: {
JOIN: `
LEFT JOIN off_chain_pool_data pod ON
pmr_id = meta_id`
},
identifierOrPledge: {
JOIN: `
JOIN pool_update pl ON
pl.id = pu.update_id`
},
pledge: { WHERE: (pledgeMet: boolean) => `live_pledge ${pledgeMet ? '>=' : '<'} pledge` },
pledgeOrStatus: {
JOIN: `
LEFT JOIN blockfrost.pool_metric pm ON
pm.pool_hash_id = ph.id`
},
status: { WHERE: (status: Cardano.StakePoolStatus[]) => `(${status.map((_) => `status = '${_}'`).join(' OR ')})` }
} as const;
const Queries = {
IDENTIFIER_QUERY,
POOLS_WITH_PLEDGE_MET,
STATUS_QUERY,
findBlockfrostPoolsData,
findBlockfrostPoolsMetrics,
findLastEpoch,
findLastEpochWithData,
findPoolAPY,
findPoolStats,
findPools,
findPoolsData,
findPoolsMetrics,
findPoolsOwners,
findPoolsRegistrations,
findPoolsRelays,
findPoolsRetirements
};
export default Queries;
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