<?php
/**
 * Spacetraders ship details page.
 *
 * @package  SpacetradersAPI
 * @author   Keith Solomon <keith@keithsolomon.net>
 * @license  MIT License
 * @version  GIT: <git_id>
 * @link     https://git.keithsolomon.net/keith/Spacetraders
 */

require_once __DIR__ . '/lib/spacetraders-api.php';
require_once __DIR__ . '/lib/spacetraders-storage.php';

$config = require __DIR__ . '/lib/project-config.php';

$storage = new SpacetradersStorage( $config['db_path'] );
$token   = $storage->getAgentToken();

$statusMessage = '';
$errorMessage = '';
$ship = array();
$shipList = array();
$shipSymbol = isset( $_GET['ship'] ) ? trim( (string) $_GET['ship'] ) : '';

if (! is_string( $token ) || trim( $token ) === '' ) {
    $envToken = getenv( 'SPACETRADERS_TOKEN' );
    if (is_string( $envToken ) && trim( $envToken ) !== '' ) {
        $token = trim( $envToken );
        $storage->setAgentToken( $token );
    }
}

if (! is_string( $token ) || trim( $token ) === '' ) {
    $tokenError = 'No token found. Set one in config.php or SPACETRADERS_TOKEN.';
}

if (! isset( $tokenError ) ) {
    $client = new SpacetradersApi(
        trim( $token ),
        $config['api_base_url'],
        (int) $config['api_timeout'],
        $storage,
        (int) $config['cache_ttl']
    );
}

try {
    if (! isset( $tokenError ) ) {
        $shipListResponse = $client->listMyShips();
        $shipList = $shipListResponse['data'] ?? array();

        if ($shipSymbol === '' && ! empty( $shipList ) ) {
            $shipSymbol = (string) ( $shipList[0]['symbol'] ?? '' );
        }

        if ($shipSymbol !== '' ) {
            if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset( $_POST['ship_action'] ) ) {
                $action = (string) $_POST['ship_action'];
                switch ($action) {
                case 'orbit':
                    $client->orbitShip( $shipSymbol );
                    $statusMessage = 'Ship set to orbit.';
                    break;
                case 'dock':
                    $client->dockShip( $shipSymbol );
                    $statusMessage = 'Ship docked.';
                    break;
                case 'extract':
                    $client->extractResources( $shipSymbol );
                    $statusMessage = 'Resource extraction started.';
                    break;
                case 'survey':
                    $client->surveyWaypoint( $shipSymbol );
                    $statusMessage = 'Survey completed.';
                    break;
                case 'siphon':
                    $client->siphonResources( $shipSymbol );
                    $statusMessage = 'Siphon action completed.';
                    break;
                case 'refuel':
                    $client->refuelShip( $shipSymbol );
                    $statusMessage = 'Ship refueled.';
                    break;
                case 'sell_all_cargo':
                    $shipResponse = $client->getShip( $shipSymbol );
                    $shipData     = $shipResponse['data'] ?? array();
                    $shipStatus   = (string) ( $shipData['nav']['status'] ?? '' );

                    if ($shipStatus === 'IN_TRANSIT' ) {
                        throw new SpacetradersApiException( 'Ship is in transit and cannot sell cargo right now.' );
                    }

                    if ($shipStatus !== 'DOCKED' ) {
                        $client->dockShip( $shipSymbol );
                    }

                    $inventory = (array) ( $shipData['cargo']['inventory'] ?? array() );
                    $soldItems = 0;
                    foreach ( $inventory as $item ) {
                        $tradeSymbol = (string) ( $item['symbol'] ?? '' );
                        $units       = (int) ( $item['units'] ?? 0 );
                        if ($tradeSymbol === '' || $units <= 0 ) {
                            continue;
                        }

                        try {
                            $client->sellCargo( $shipSymbol, $tradeSymbol, $units );
                            $soldItems++;
                        } catch (SpacetradersApiException $e) {
                            // Continue selling other items.
                        }
                    }

                    $statusMessage = 'Attempted to sell all cargo item types. Sold: ' . $soldItems . '.';
                    break;
                case 'sell_cargo_item':
                    $tradeSymbol = trim( (string) ( $_POST['trade_symbol'] ?? '' ) );
                    $units       = (int) ( $_POST['units'] ?? 0 );

                    if ($tradeSymbol === '' || $units <= 0 ) {
                        throw new SpacetradersApiException( 'Trade symbol and units are required to sell cargo.' );
                    }

                    $shipResponse = $client->getShip( $shipSymbol );
                    $shipData     = $shipResponse['data'] ?? array();
                    $shipStatus   = (string) ( $shipData['nav']['status'] ?? '' );

                    if ($shipStatus === 'IN_TRANSIT' ) {
                        throw new SpacetradersApiException( 'Ship is in transit and cannot sell cargo right now.' );
                    }

                    if ($shipStatus !== 'DOCKED' ) {
                        $client->dockShip( $shipSymbol );
                    }

                    $client->sellCargo( $shipSymbol, $tradeSymbol, $units );
                    $statusMessage = 'Sold ' . number_format( $units ) . ' units of ' . $tradeSymbol . '.';
                    break;
                case 'jettison_all_cargo':
                    $shipResponse = $client->getShip( $shipSymbol );
                    $shipData     = $shipResponse['data'] ?? array();
                    $shipStatus   = (string) ( $shipData['nav']['status'] ?? '' );
                    if ($shipStatus === 'IN_TRANSIT' ) {
                        throw new SpacetradersApiException( 'Ship is in transit and cannot jettison cargo right now.' );
                    }

                    $inventory = (array) ( $shipData['cargo']['inventory'] ?? array() );
                    $jettisonedItems = 0;
                    foreach ( $inventory as $item ) {
                        $tradeSymbol = (string) ( $item['symbol'] ?? '' );
                        $units       = (int) ( $item['units'] ?? 0 );
                        if ($tradeSymbol === '' || $units <= 0 ) {
                            continue;
                        }

                        try {
                            $client->jettisonCargo( $shipSymbol, $tradeSymbol, $units );
                            $jettisonedItems++;
                        } catch (SpacetradersApiException $e) {
                            // Continue attempting the rest.
                        }
                    }

                    $statusMessage = 'Attempted to jettison all cargo item types. Jettisoned: ' . $jettisonedItems . '.';
                    break;
                case 'jettison_cargo_item':
                    $tradeSymbol = trim( (string) ( $_POST['trade_symbol'] ?? '' ) );
                    $units       = (int) ( $_POST['units'] ?? 0 );
                    if ($tradeSymbol === '' || $units <= 0 ) {
                        throw new SpacetradersApiException( 'Trade symbol and units are required to jettison cargo.' );
                    }

                    $shipResponse = $client->getShip( $shipSymbol );
                    $shipData     = $shipResponse['data'] ?? array();
                    $shipStatus   = (string) ( $shipData['nav']['status'] ?? '' );
                    if ($shipStatus === 'IN_TRANSIT' ) {
                        throw new SpacetradersApiException( 'Ship is in transit and cannot jettison cargo right now.' );
                    }

                    $client->jettisonCargo( $shipSymbol, $tradeSymbol, $units );
                    $statusMessage = 'Jettisoned ' . number_format( $units ) . ' units of ' . $tradeSymbol . '.';
                    break;
                }

                if ($statusMessage !== '' ) {
                    $storage->clearAllCache();
                }
            }

            $shipResponse = $client->getShip( $shipSymbol );
            $ship         = $shipResponse['data'] ?? $shipResponse;
        }
    }
} catch (SpacetradersApiException $e) {
    $errorMessage = $e->getMessage();
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Spacetraders - Ship Details</title>
    <script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="container mx-auto px-4 py-8 bg-stone-800 text-gray-200">
    <div class="mb-6 flex gap-4">
        <a href="index.php" class="text-blue-400 hover:underline">Agent Info</a>
        <a href="mining-fleet.php" class="text-blue-400 hover:underline">Mining Fleet</a>
        <a href="buy-ships.php" class="text-blue-400 hover:underline">Buy Ships</a>
        <a href="config.php" class="text-blue-400 hover:underline">Configuration</a>
    </div>

    <h1 class="text-3xl font-bold mb-6 underline decoration-gray-300 w-full">Ship Details</h1>

    <?php if (isset( $tokenError ) ) : ?>
        <div class="mb-6 border border-red-500 p-4 rounded text-red-300">
            <?php echo htmlspecialchars( $tokenError ); ?>
        </div>
        </body>
        </html>
        <?php exit; ?>
    <?php endif; ?>

    <?php if ($errorMessage !== '' ) : ?>
        <div class="mb-6 border border-red-500 p-4 rounded text-red-300">
            <?php echo htmlspecialchars( $errorMessage ); ?>
        </div>
    <?php endif; ?>

    <?php if ($statusMessage !== '' ) : ?>
        <div class="mb-6 border border-green-500 p-4 rounded text-green-300">
            <?php echo htmlspecialchars( $statusMessage ); ?>
        </div>
    <?php endif; ?>

    <form method="get" class="mb-6 flex items-end gap-3">
        <div>
            <label for="ship" class="block text-sm mb-1">Choose Ship</label>
            <select id="ship" name="ship" class="px-3 py-2 rounded text-black min-w-64">
                <?php foreach ( $shipList as $listShip ) : ?>
                    <?php $listSymbol = (string) ( $listShip['symbol'] ?? '' ); ?>
                    <option value="<?php echo htmlspecialchars( $listSymbol ); ?>" <?php echo ( $listSymbol === $shipSymbol ) ? 'selected' : ''; ?>>
                        <?php echo htmlspecialchars( $listSymbol ); ?>
                    </option>
                <?php endforeach; ?>
            </select>
        </div>
        <button type="submit" class="px-4 py-2 bg-blue-600 rounded hover:bg-blue-500">View</button>
    </form>

    <?php if (! empty( $ship ) ) : ?>
        <?php
        $shipRole = strtoupper( (string) ( $ship['registration']['role'] ?? '' ) );
        $shipStatus = (string) ( $ship['nav']['status'] ?? '' );
        $fuelCurrent = (int) ( $ship['fuel']['current'] ?? 0 );
        $fuelCapacity = (int) ( $ship['fuel']['capacity'] ?? 0 );
        $showRefuel = $fuelCapacity > 0 && $fuelCurrent < $fuelCapacity;
        ?>
        <div class="mb-6 border border-gray-600 rounded p-4">
            <h2 class="text-xl font-bold mb-3">Ship Controls</h2>
            <form method="post" class="flex flex-wrap gap-2">
                <?php if ($shipStatus === 'DOCKED' ) : ?>
                    <button type="submit" name="ship_action" value="orbit" class="px-3 py-1 bg-blue-600 rounded hover:bg-blue-500">Orbit</button>
                <?php endif; ?>

                <?php if ($shipStatus !== 'DOCKED' && $shipStatus !== 'IN_TRANSIT' ) : ?>
                    <button type="submit" name="ship_action" value="dock" class="px-3 py-1 bg-blue-600 rounded hover:bg-blue-500">Dock</button>
                <?php endif; ?>

                <?php if ($shipRole === 'EXCAVATOR' ) : ?>
                    <button type="submit" name="ship_action" value="extract" class="px-3 py-1 bg-emerald-700 rounded hover:bg-emerald-600">Mine (Extract)</button>
                <?php endif; ?>

                <?php if ($shipRole === 'SURVEYOR' ) : ?>
                    <button type="submit" name="ship_action" value="survey" class="px-3 py-1 bg-indigo-700 rounded hover:bg-indigo-600">Survey</button>
                <?php endif; ?>

                <?php if ($shipRole === 'EXCAVATOR' ) : ?>
                    <button type="submit" name="ship_action" value="siphon" class="px-3 py-1 bg-cyan-700 rounded hover:bg-cyan-600">Siphon</button>
                <?php endif; ?>

                <?php if ($showRefuel ) : ?>
                    <button type="submit" name="ship_action" value="refuel" class="px-3 py-1 bg-amber-700 rounded hover:bg-amber-600">Refuel</button>
                <?php endif; ?>

                <?php if ((int) ( $ship['cargo']['units'] ?? 0 ) > 0) : ?>
                    <button type="submit" name="ship_action" value="sell_all_cargo" class="px-3 py-1 bg-rose-700 rounded hover:bg-rose-600">Sell All Cargo</button>
                    <button type="submit" name="ship_action" value="jettison_all_cargo" class="px-3 py-1 bg-red-800 rounded hover:bg-red-700">Jettison All Cargo</button>
                <?php endif; ?>
            </form>
            <p class="mt-2 text-sm text-gray-300">
                Role: <?php echo htmlspecialchars( $shipRole ); ?> |
                Status: <?php echo htmlspecialchars( $shipStatus ); ?> |
                Fuel: <?php echo number_format( $fuelCurrent ); ?>/<?php echo number_format( $fuelCapacity ); ?>
            </p>
        </div>

        <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
            <div class="border border-gray-600 rounded p-4">
                <h2 class="text-xl font-bold mb-2">Overview</h2>
                <p><span class="font-bold">Symbol:</span> <?php echo htmlspecialchars( (string) ( $ship['symbol'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Name:</span> <?php echo htmlspecialchars( (string) ( $ship['registration']['name'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Role:</span> <?php echo htmlspecialchars( (string) ( $ship['registration']['role'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Faction:</span> <?php echo htmlspecialchars( (string) ( $ship['registration']['factionSymbol'] ?? '' ) ); ?></p>
            </div>

            <div class="border border-gray-600 rounded p-4">
                <h2 class="text-xl font-bold mb-2">Navigation</h2>
                <p><span class="font-bold">Status:</span> <?php echo htmlspecialchars( (string) ( $ship['nav']['status'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Flight Mode:</span> <?php echo htmlspecialchars( (string) ( $ship['nav']['flightMode'] ?? '' ) ); ?></p>
                <p><span class="font-bold">System:</span> <?php echo htmlspecialchars( (string) ( $ship['nav']['systemSymbol'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Waypoint:</span> <?php echo htmlspecialchars( (string) ( $ship['nav']['waypointSymbol'] ?? '' ) ); ?></p>
            </div>

            <div class="border border-gray-600 rounded p-4">
                <h2 class="text-xl font-bold mb-2">Frame / Engine / Reactor</h2>
                <p><span class="font-bold">Frame:</span> <?php echo htmlspecialchars( (string) ( $ship['frame']['name'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Engine:</span> <?php echo htmlspecialchars( (string) ( $ship['engine']['name'] ?? '' ) ); ?></p>
                <p><span class="font-bold">Reactor:</span> <?php echo htmlspecialchars( (string) ( $ship['reactor']['name'] ?? '' ) ); ?></p>
            </div>

            <div class="border border-gray-600 rounded p-4">
                <h2 class="text-xl font-bold mb-2">Cargo / Fuel</h2>
                <p><span class="font-bold">Cargo:</span> <?php echo number_format( (int) ( $ship['cargo']['units'] ?? 0 ) ); ?> / <?php echo number_format( (int) ( $ship['cargo']['capacity'] ?? 0 ) ); ?></p>
                <p><span class="font-bold">Fuel:</span> <?php echo number_format( (int) ( $ship['fuel']['current'] ?? 0 ) ); ?> / <?php echo number_format( (int) ( $ship['fuel']['capacity'] ?? 0 ) ); ?></p>
                <p><span class="font-bold">Cooldown Remaining:</span> <?php echo number_format( (int) ( $ship['cooldown']['remainingSeconds'] ?? 0 ) ); ?>s</p>
            </div>
        </div>

        <div class="mt-6 border border-gray-600 rounded p-4">
            <h2 class="text-xl font-bold mb-2">Mounts</h2>
            <?php $mounts = (array) ( $ship['mounts'] ?? array() ); ?>
            <?php if (empty( $mounts ) ) : ?>
                <p class="text-gray-300">No mounts equipped.</p>
            <?php else : ?>
                <ul class="list-disc list-inside">
                    <?php foreach ( $mounts as $mount ) : ?>
                        <li><?php echo htmlspecialchars( (string) ( $mount['name'] ?? $mount['symbol'] ?? '' ) ); ?></li>
                    <?php endforeach; ?>
                </ul>
            <?php endif; ?>
        </div>

        <div class="mt-6 border border-gray-600 rounded p-4">
            <h2 class="text-xl font-bold mb-2">Modules</h2>
            <?php $modules = (array) ( $ship['modules'] ?? array() ); ?>
            <?php if (empty( $modules ) ) : ?>
                <p class="text-gray-300">No modules installed.</p>
            <?php else : ?>
                <ul class="list-disc list-inside">
                    <?php foreach ( $modules as $module ) : ?>
                        <li><?php echo htmlspecialchars( (string) ( $module['name'] ?? $module['symbol'] ?? '' ) ); ?></li>
                    <?php endforeach; ?>
                </ul>
            <?php endif; ?>
        </div>

        <div class="mt-6 border border-gray-600 rounded p-4">
            <h2 class="text-xl font-bold mb-2">Cargo Inventory</h2>
            <?php $inventory = (array) ( $ship['cargo']['inventory'] ?? array() ); ?>
            <?php if (empty( $inventory ) ) : ?>
                <p class="text-gray-300">Cargo hold is empty.</p>
            <?php else : ?>
                <table class="table-auto border-collapse border border-gray-300 w-full">
                    <tr>
                        <th class="border border-gray-300 px-3 py-2">Symbol</th>
                        <th class="border border-gray-300 px-3 py-2">Name</th>
                        <th class="border border-gray-300 px-3 py-2">Units</th>
                        <th class="border border-gray-300 px-3 py-2">Description</th>
                        <th class="border border-gray-300 px-3 py-2">Sell</th>
                        <th class="border border-gray-300 px-3 py-2">Jettison</th>
                    </tr>
                    <?php foreach ( $inventory as $item ) : ?>
                        <?php $itemUnits = (int) ( $item['units'] ?? 0 ); ?>
                        <tr>
                            <td class="border border-gray-300 px-3 py-2"><?php echo htmlspecialchars( (string) ( $item['symbol'] ?? '' ) ); ?></td>
                            <td class="border border-gray-300 px-3 py-2"><?php echo htmlspecialchars( (string) ( $item['name'] ?? '' ) ); ?></td>
                            <td class="border border-gray-300 px-3 py-2"><?php echo number_format( $itemUnits ); ?></td>
                            <td class="border border-gray-300 px-3 py-2"><?php echo htmlspecialchars( (string) ( $item['description'] ?? '' ) ); ?></td>
                            <td class="border border-gray-300 px-3 py-2">
                                <?php if ($itemUnits > 0 ) : ?>
                                    <form method="post" class="flex items-center gap-2">
                                        <input type="hidden" name="ship_action" value="sell_cargo_item">
                                        <input type="hidden" name="trade_symbol" value="<?php echo htmlspecialchars( (string) ( $item['symbol'] ?? '' ) ); ?>">
                                        <input
                                            type="number"
                                            name="units"
                                            value="<?php echo (int) $itemUnits; ?>"
                                            min="1"
                                            max="<?php echo (int) $itemUnits; ?>"
                                            class="w-24 px-2 py-1 rounded text-black"
                                        >
                                        <button type="submit" class="px-3 py-1 bg-rose-700 rounded hover:bg-rose-600">Sell</button>
                                    </form>
                                <?php endif; ?>
                            </td>
                            <td class="border border-gray-300 px-3 py-2">
                                <?php if ($itemUnits > 0 ) : ?>
                                    <form method="post" class="flex items-center gap-2">
                                        <input type="hidden" name="ship_action" value="jettison_cargo_item">
                                        <input type="hidden" name="trade_symbol" value="<?php echo htmlspecialchars( (string) ( $item['symbol'] ?? '' ) ); ?>">
                                        <input
                                            type="number"
                                            name="units"
                                            value="<?php echo (int) $itemUnits; ?>"
                                            min="1"
                                            max="<?php echo (int) $itemUnits; ?>"
                                            class="w-24 px-2 py-1 rounded text-black"
                                        >
                                        <button type="submit" class="px-3 py-1 bg-red-800 rounded hover:bg-red-700">Jettison</button>
                                    </form>
                                <?php endif; ?>
                            </td>
                        </tr>
                    <?php endforeach; ?>
                </table>
            <?php endif; ?>
        </div>
    <?php endif; ?>
</body>
</html>