<?php
/**
 * Report Configuration
 * 
 * Defines factory areas and their associated tags for reporting
 */

// SQL Server connection (history database)
define('REPORT_DB_SERVER', '192.168.0.13\\SQLEXPRESS');
define('REPORT_DB_NAME', 'history');
define('REPORT_DB_USER', 'opce');
define('REPORT_DB_PASS', 'opcelasuca');

// Maximum rows to return in a single query (safety limit)
define('REPORT_MAX_ROWS', 10000);

// Factory areas and their associated tags
$factoryAreas = [
    'milling' => [
        'name' => 'Milling',
        'description' => 'Mill grinding operations - East and West',
        'sections' => [
            'production' => [
                'name' => 'Production Totals',
                'tags' => [
                    'CANETOT' => ['label' => 'East Tons Ground', 'unit' => 'Tons'],
                    'W TONS GROUND' => ['label' => 'West Tons Ground', 'unit' => 'Tons'],
                    'TotalGround' => ['label' => 'Combined Total', 'unit' => 'Tons'],
                ],
            ],
            'rates' => [
                'name' => 'Grinding Rates',
                'tags' => [
                    'RATE' => ['label' => 'West Tons/Hr', 'unit' => 'Tons/Hr'],
                    'MAINSPD' => ['label' => 'East MCC Speed', 'unit' => 'FPM'],
                    'Feet/Minute' => ['label' => 'West BC-09 Speed', 'unit' => 'FPM'],
                ],
            ],
            'tanks' => [
                'name' => 'Tank Levels',
                'tags' => [
                    'Juice Tank1' => ['label' => 'Juice Tank 1', 'unit' => '%'],
                    'Juice Tank2' => ['label' => 'Juice Tank 2', 'unit' => '%'],
                    'Syrup Overflow Lvl' => ['label' => 'Syrup Overflow', 'unit' => '%'],
                    'Syrup RCVR' => ['label' => 'Syrup Receiver', 'unit' => '%'],
                ],
            ],
            'steam' => [
                'name' => 'Steam',
                'tags' => [
                    'PT_001' => ['label' => 'Live Steam Pressure', 'unit' => 'PSI'],
                ],
            ],
            'imbibition' => [
                'name' => 'Imbibition',
                'tags' => [
                    'IMB5Flow' => ['label' => 'IMB 5 Flow', 'unit' => 'GPM'],
                    'IMB6Flow' => ['label' => 'IMB 6 Flow', 'unit' => 'GPM'],
                    'WMillIMBFlow' => ['label' => 'West IMB Flow', 'unit' => 'GPM'],
                ],
            ],
            'runtime' => [
                'name' => 'Run Time',
                'tags' => [
                    'RUNHRSTODAY' => ['label' => 'East Run Hours', 'unit' => 'Hours'],
                    'todayrun' => ['label' => 'West Run Hours', 'unit' => 'Hours'],
                    'LOSSTIME' => ['label' => 'East Loss Time', 'unit' => 'Hours'],
                    'todayloss' => ['label' => 'West Loss Time', 'unit' => 'Hours'],
                ],
            ],
        ],
    ],
    'boilers' => [
        'name' => 'Boilers',
        'description' => 'Boiler operations and steam generation',
        'sections' => [
            'steam_totals' => [
                'name' => 'Steam Totals',
                'tags' => [
                    'B1TotSteam' => ['label' => 'Boiler 1 Steam', 'unit' => 'PPH'],
                    'B2TotSteam' => ['label' => 'Boiler 2 Steam', 'unit' => 'PPH'],
                    'B3TotSteam' => ['label' => 'Boiler 3 Steam', 'unit' => 'PPH'],
                    'B4TotSteam' => ['label' => 'Boiler 4 Steam', 'unit' => 'PPH'],
                ],
            ],
            'pressures' => [
                'name' => 'Pressures',
                'tags' => [
                    'HouseAirPressure' => ['label' => 'House Air', 'unit' => 'PSI'],
                ],
            ],
        ],
    ],
    'fabrication' => [
        'name' => 'Fabrication',
        'description' => 'Sugar fabrication and dryers',
        'sections' => [
            'tanks' => [
                'name' => 'Tank Levels',
                'tags' => [
                    'BBTankLvl' => ['label' => 'Broadbent Tank', 'unit' => '%'],
                    'ACVPMassecuiteLVL' => ['label' => 'A CVP Massecuite', 'unit' => '%'],
                ],
            ],
            'dryers' => [
                'name' => 'Dryers',
                'tags' => [
                    'A1Running' => ['label' => 'Dryer A1', 'unit' => 'On/Off'],
                    'A2Running' => ['label' => 'Dryer A2', 'unit' => 'On/Off'],
                    'A3Running' => ['label' => 'Dryer A3', 'unit' => 'On/Off'],
                    'A4Running' => ['label' => 'Dryer A4', 'unit' => 'On/Off'],
                    'A5Running' => ['label' => 'Dryer A5', 'unit' => 'On/Off'],
                    'A6Running' => ['label' => 'Dryer A6', 'unit' => 'On/Off'],
                    'A7Running' => ['label' => 'Dryer A7', 'unit' => 'On/Off'],
                ],
            ],
        ],
    ],
];

/**
 * Get database connection
 */
function getReportDbConnection(): ?PDO
{
    static $pdo = null;
    
    if ($pdo === null) {
        try {
            $pdo = new PDO(
                "sqlsrv:Server=" . REPORT_DB_SERVER . ";Database=" . REPORT_DB_NAME,
                REPORT_DB_USER,
                REPORT_DB_PASS,
                [
                    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
                ]
            );
        } catch (PDOException $e) {
            error_log('Report DB connection failed: ' . $e->getMessage());
            return null;
        }
    }
    
    return $pdo;
}

/**
 * Get tag ID from name (cached)
 */
function getTagId(PDO $pdo, string $tagName): ?string
{
    static $cache = [];
    
    if (isset($cache[$tagName])) {
        return $cache[$tagName];
    }
    
    $stmt = $pdo->prepare("SELECT idnumber FROM dbo.id_names WHERE name = ?");
    $stmt->execute([$tagName]);
    $row = $stmt->fetch();
    
    $cache[$tagName] = $row ? $row['idnumber'] : null;
    return $cache[$tagName];
}