// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.27.0
// source: customschemas.sql

package repository

import (
	"context"

	"github.com/google/uuid"
	"github.com/jackc/pgx/v5/pgtype"
)

const createClientMetadataSchema = `-- name: CreateClientMetadataSchema :one

INSERT INTO client_metadata_schemas (
    client_id,
    name,
    description,
    schema_def,
    version,
    status,
    created_by
) VALUES (
    $1,
    $2,
    $3,
    $4,
    $5,
    $6,
    $7
)
RETURNING id, client_id, name, description, schema_def, version, status, created_at, created_by
`

type CreateClientMetadataSchemaParams struct {
	ClientID    string           `db:"client_id"`
	Name        string           `db:"name"`
	Description *string          `db:"description"`
	SchemaDef   []byte           `db:"schema_def"`
	Version     int32            `db:"version"`
	Status      SchemaStatusType `db:"status"`
	CreatedBy   string           `db:"created_by"`
}

// Mutable metadata feature, milestone 1.4: schema CRUD queries for
// client_metadata_schemas. See plan Section 8.2 of
// plans/mutable.metadata.plan.combo.v4.md for the canonical list.
//
// Intentionally omitted in v4:
//   - GetSchemaMetadataRecordCount (removed; canDelete derives from
//     GetSchemaDocumentCount alone because document_custom_metadata has
//     no schema_id column in v4).
//   - Metadata, document-modification, and reset-metadata queries
//     (Milestones 2 and 3, plan sections 8.2 continued).
//
// Insert a new schema row. Caller supplies an explicit version computed
// from GetMaxSchemaVersion + 1 and an explicit status (always 'active'
// in Milestone 1; supersede/retire go through SetSchemaStatus). The
// database defaults id and created_at.
//
//	INSERT INTO client_metadata_schemas (
//	    client_id,
//	    name,
//	    description,
//	    schema_def,
//	    version,
//	    status,
//	    created_by
//	) VALUES (
//	    $1,
//	    $2,
//	    $3,
//	    $4,
//	    $5,
//	    $6,
//	    $7
//	)
//	RETURNING id, client_id, name, description, schema_def, version, status, created_at, created_by
func (q *Queries) CreateClientMetadataSchema(ctx context.Context, arg *CreateClientMetadataSchemaParams) (*ClientMetadataSchema, error) {
	row := q.db.QueryRow(ctx, createClientMetadataSchema,
		arg.ClientID,
		arg.Name,
		arg.Description,
		arg.SchemaDef,
		arg.Version,
		arg.Status,
		arg.CreatedBy,
	)
	var i ClientMetadataSchema
	err := row.Scan(
		&i.ID,
		&i.ClientID,
		&i.Name,
		&i.Description,
		&i.SchemaDef,
		&i.Version,
		&i.Status,
		&i.CreatedAt,
		&i.CreatedBy,
	)
	return &i, err
}

const getClientMetadataSchema = `-- name: GetClientMetadataSchema :one
SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
WHERE id = $1
`

// Fetch a single schema by primary key.
//
//	SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
//	WHERE id = $1
func (q *Queries) GetClientMetadataSchema(ctx context.Context, id uuid.UUID) (*ClientMetadataSchema, error) {
	row := q.db.QueryRow(ctx, getClientMetadataSchema, id)
	var i ClientMetadataSchema
	err := row.Scan(
		&i.ID,
		&i.ClientID,
		&i.Name,
		&i.Description,
		&i.SchemaDef,
		&i.Version,
		&i.Status,
		&i.CreatedAt,
		&i.CreatedBy,
	)
	return &i, err
}

const getLatestSchemaByName = `-- name: GetLatestSchemaByName :one
SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
WHERE client_id = $1 AND name = $2
ORDER BY version DESC
LIMIT 1
`

type GetLatestSchemaByNameParams struct {
	ClientID string `db:"client_id"`
	Name     string `db:"name"`
}

// Return the highest-version row for a (client_id, name) pair regardless
// of status. Callers that need an active-only view should filter after.
//
//	SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
//	WHERE client_id = $1 AND name = $2
//	ORDER BY version DESC
//	LIMIT 1
func (q *Queries) GetLatestSchemaByName(ctx context.Context, arg *GetLatestSchemaByNameParams) (*ClientMetadataSchema, error) {
	row := q.db.QueryRow(ctx, getLatestSchemaByName, arg.ClientID, arg.Name)
	var i ClientMetadataSchema
	err := row.Scan(
		&i.ID,
		&i.ClientID,
		&i.Name,
		&i.Description,
		&i.SchemaDef,
		&i.Version,
		&i.Status,
		&i.CreatedAt,
		&i.CreatedBy,
	)
	return &i, err
}

const getMaxSchemaVersion = `-- name: GetMaxSchemaVersion :one
SELECT COALESCE(MAX(version), 0) AS max_version
FROM client_metadata_schemas
WHERE client_id = $1 AND name = $2
`

type GetMaxSchemaVersionParams struct {
	ClientID string `db:"client_id"`
	Name     string `db:"name"`
}

// Get the current max version for a (client_id, name) pair. Returns 0
// for a brand-new pair so the service layer can safely write version 1.
// Must be called inside the same transaction that holds the lock from
// LockSchemaVersionsForName.
//
//	SELECT COALESCE(MAX(version), 0) AS max_version
//	FROM client_metadata_schemas
//	WHERE client_id = $1 AND name = $2
func (q *Queries) GetMaxSchemaVersion(ctx context.Context, arg *GetMaxSchemaVersionParams) (*int32, error) {
	row := q.db.QueryRow(ctx, getMaxSchemaVersion, arg.ClientID, arg.Name)
	var max_version *int32
	err := row.Scan(&max_version)
	return max_version, err
}

const getSchemaDocumentCount = `-- name: GetSchemaDocumentCount :one
SELECT COUNT(*) AS document_count
FROM documents
WHERE custom_schema_id = $1
`

// Count documents currently bound to a schema via documents.custom_schema_id.
// Used to derive canDelete and to drive retire-vs-delete decisions.
//
//	SELECT COUNT(*) AS document_count
//	FROM documents
//	WHERE custom_schema_id = $1
func (q *Queries) GetSchemaDocumentCount(ctx context.Context, schemaID *uuid.UUID) (int64, error) {
	row := q.db.QueryRow(ctx, getSchemaDocumentCount, schemaID)
	var document_count int64
	err := row.Scan(&document_count)
	return document_count, err
}

const listClientMetadataSchemas = `-- name: ListClientMetadataSchemas :many
SELECT
    cms.id, cms.client_id, cms.name, cms.description, cms.schema_def, cms.version, cms.status, cms.created_at, cms.created_by,
    (SELECT COUNT(*) FROM documents WHERE documents.custom_schema_id = cms.id)::bigint AS document_count
FROM client_metadata_schemas cms
WHERE cms.client_id = $1
  AND ($2::varchar IS NULL OR cms.name = $2::varchar)
  AND ($3::bool OR cms.status = $4::schema_status_type)
  AND (
        $5::bool
        OR (cms.client_id, cms.name, cms.version) IN (
            SELECT client_id, name, MAX(version)
            FROM client_metadata_schemas
            WHERE client_id = $1
            GROUP BY client_id, name
        )
      )
ORDER BY cms.name, cms.version DESC
LIMIT $7 OFFSET $6
`

type ListClientMetadataSchemasParams struct {
	ClientID           string           `db:"client_id"`
	NameFilter         *string          `db:"name_filter"`
	IncludeAllStatuses bool             `db:"include_all_statuses"`
	StatusFilter       SchemaStatusType `db:"status_filter"`
	IncludeAllVersions bool             `db:"include_all_versions"`
	OffsetVal          int64            `db:"offset_val"`
	LimitVal           int64            `db:"limit_val"`
}

type ListClientMetadataSchemasRow struct {
	ID            uuid.UUID          `db:"id"`
	ClientID      string             `db:"client_id"`
	Name          string             `db:"name"`
	Description   *string            `db:"description"`
	SchemaDef     []byte             `db:"schema_def"`
	Version       int32              `db:"version"`
	Status        SchemaStatusType   `db:"status"`
	CreatedAt     pgtype.Timestamptz `db:"created_at"`
	CreatedBy     string             `db:"created_by"`
	DocumentCount int64              `db:"document_count"`
}

// List schemas for a client with optional filters. Status filtering uses a
// two-parameter shape: when include_all_statuses is true, status is ignored;
// otherwise status_filter selects exactly one of active/superseded/retired.
// When include_all_versions is false, only the latest version per
// (client_id, name) is returned (via a max-version subquery). When true,
// every version is returned. Name filter uses sqlc.narg so passing NULL
// skips the filter; a non-NULL value is matched exactly. The document_count
// column is a correlated subquery so the handler can derive canDelete
// without a second round-trip.
//
//	SELECT
//	    cms.id, cms.client_id, cms.name, cms.description, cms.schema_def, cms.version, cms.status, cms.created_at, cms.created_by,
//	    (SELECT COUNT(*) FROM documents WHERE documents.custom_schema_id = cms.id)::bigint AS document_count
//	FROM client_metadata_schemas cms
//	WHERE cms.client_id = $1
//	  AND ($2::varchar IS NULL OR cms.name = $2::varchar)
//	  AND ($3::bool OR cms.status = $4::schema_status_type)
//	  AND (
//	        $5::bool
//	        OR (cms.client_id, cms.name, cms.version) IN (
//	            SELECT client_id, name, MAX(version)
//	            FROM client_metadata_schemas
//	            WHERE client_id = $1
//	            GROUP BY client_id, name
//	        )
//	      )
//	ORDER BY cms.name, cms.version DESC
//	LIMIT $7 OFFSET $6
func (q *Queries) ListClientMetadataSchemas(ctx context.Context, arg *ListClientMetadataSchemasParams) ([]*ListClientMetadataSchemasRow, error) {
	rows, err := q.db.Query(ctx, listClientMetadataSchemas,
		arg.ClientID,
		arg.NameFilter,
		arg.IncludeAllStatuses,
		arg.StatusFilter,
		arg.IncludeAllVersions,
		arg.OffsetVal,
		arg.LimitVal,
	)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []*ListClientMetadataSchemasRow{}
	for rows.Next() {
		var i ListClientMetadataSchemasRow
		if err := rows.Scan(
			&i.ID,
			&i.ClientID,
			&i.Name,
			&i.Description,
			&i.SchemaDef,
			&i.Version,
			&i.Status,
			&i.CreatedAt,
			&i.CreatedBy,
			&i.DocumentCount,
		); err != nil {
			return nil, err
		}
		items = append(items, &i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const lockSchemaVersionsForName = `-- name: LockSchemaVersionsForName :many
SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
WHERE client_id = $1 AND name = $2
FOR UPDATE
`

type LockSchemaVersionsForNameParams struct {
	ClientID string `db:"client_id"`
	Name     string `db:"name"`
}

// Lock every version row of a (client_id, name) pair with FOR UPDATE to
// serialize concurrent version creation. Returns the locked rows so the
// service can read the current active row id and max version in one
// statement. Must be called inside a transaction.
//
//	SELECT id, client_id, name, description, schema_def, version, status, created_at, created_by FROM client_metadata_schemas
//	WHERE client_id = $1 AND name = $2
//	FOR UPDATE
func (q *Queries) LockSchemaVersionsForName(ctx context.Context, arg *LockSchemaVersionsForNameParams) ([]*ClientMetadataSchema, error) {
	rows, err := q.db.Query(ctx, lockSchemaVersionsForName, arg.ClientID, arg.Name)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []*ClientMetadataSchema{}
	for rows.Next() {
		var i ClientMetadataSchema
		if err := rows.Scan(
			&i.ID,
			&i.ClientID,
			&i.Name,
			&i.Description,
			&i.SchemaDef,
			&i.Version,
			&i.Status,
			&i.CreatedAt,
			&i.CreatedBy,
		); err != nil {
			return nil, err
		}
		items = append(items, &i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const setSchemaStatus = `-- name: SetSchemaStatus :exec
UPDATE client_metadata_schemas
SET status = $1
WHERE id = $2
`

type SetSchemaStatusParams struct {
	Status SchemaStatusType `db:"status"`
	ID     uuid.UUID        `db:"id"`
}

// Update a schema's status. Used by the service layer to mark a row
// superseded when a new version is created, and to mark a row retired
// when the schema still has documents bound at delete time.
//
//	UPDATE client_metadata_schemas
//	SET status = $1
//	WHERE id = $2
func (q *Queries) SetSchemaStatus(ctx context.Context, arg *SetSchemaStatusParams) error {
	_, err := q.db.Exec(ctx, setSchemaStatus, arg.Status, arg.ID)
	return err
}