--liquibase formatted sql
--changeset agentneo:fn_GetCommissioningSystem runOnChange:true stripComments:false endDelimiter:/
--comment: Create or replace xyz."fn_GetCommissioningSystem"

------------------------------------------------------------------------------------
-- Created by:  AgentNeo
-- Created on:  10/07/2026
-- Description: Get a single non-deleted commissioning system by project and id.
--              Returns zero rows if not found or belonging to another project.
------------------------------------------------------------------------------------

DROP FUNCTION IF EXISTS xyz."fn_GetCommissioningSystem";

CREATE OR REPLACE FUNCTION xyz."fn_GetCommissioningSystem" (
    _projectId             UUID,
    _commissioningSystemId UUID
)
RETURNS TABLE (
    "CommissioningSystemId" UUID,
    "ProjectShardId"        INT,
    "SystemTypeId"          UUID,
    "Name"                  TEXT,
    "CreatedBy"             TEXT,
    "InsertedOn"            TIMESTAMP WITH TIME ZONE,
    "LastModifiedOn"        TIMESTAMP WITH TIME ZONE,
    "LastModifiedBy"        TEXT,
    "IsDeleted"             BOOLEAN
)
AS $$
DECLARE
    -- project id map
    _projectShardId INT;
BEGIN
    -- get shard id from uuid
    SELECT xyz."fn_GetProjectShardId"(_projectId) INTO _projectShardId;

    RETURN QUERY
    SELECT
        cs."CommissioningSystemId",
        cs."ProjectShardId",
        cs."SystemTypeId",
        cs."Name",
        cs."CreatedBy",
        cs."InsertedOn",
        cs."LastModifiedOn",
        cs."LastModifiedBy",
        cs."IsDeleted"
    FROM xyz."CommissioningSystem" cs
    WHERE cs."ProjectShardId"        = _projectShardId
      AND cs."CommissioningSystemId" = _commissioningSystemId
      AND cs."IsDeleted"             = FALSE;
END;
$$
LANGUAGE plpgsql;
/