/**
 * Missing Fleet Tables Migration
 * Adds fleet-related tables that were missing from previous migrations
 */

exports.up = function(knex) {
    return knex.schema
        // Create fleets table
        .createTable('fleets', (table) => {
            table.increments('id').primary();
            table.integer('player_id').notNullable().references('players.id').onDelete('CASCADE');
            table.string('name', 100).notNullable();
            table.string('current_location', 20).notNullable(); // Coordinates
            table.string('destination', 20).nullable(); // If moving
            table.string('fleet_status', 20).defaultTo('idle')
                .checkIn(['idle', 'moving', 'in_combat', 'constructing', 'repairing']);
            table.timestamp('movement_started').nullable();
            table.timestamp('arrival_time').nullable();
            table.timestamp('last_updated').defaultTo(knex.fn.now());
            table.timestamp('created_at').defaultTo(knex.fn.now());
            
            table.index(['player_id']);
            table.index(['current_location']);
            table.index(['fleet_status']);
            table.index(['arrival_time']);
        })
        
        // Create ship_designs table
        .createTable('ship_designs', (table) => {
            table.increments('id').primary();
            table.integer('player_id').nullable().references('players.id').onDelete('CASCADE'); // NULL for public designs
            table.string('name', 100).notNullable();
            table.string('ship_class', 50).notNullable(); // 'fighter', 'corvette', 'destroyer', 'cruiser', 'battleship'
            table.string('hull_type', 50).notNullable();
            table.jsonb('components').notNullable(); // Weapon, shield, engine configurations
            table.jsonb('stats').notNullable(); // Calculated stats: hp, attack, defense, speed, etc.
            table.jsonb('cost').notNullable(); // Resource cost to build
            table.integer('build_time').notNullable(); // In minutes
            table.boolean('is_public').defaultTo(false); // Available to all players
            table.boolean('is_active').defaultTo(true);
            table.timestamp('created_at').defaultTo(knex.fn.now());
            table.timestamp('updated_at').defaultTo(knex.fn.now());
            
            table.index(['player_id']);
            table.index(['ship_class']);
            table.index(['is_public']);
            table.index(['is_active']);
        })
        
        // Create fleet_ships table
        .createTable('fleet_ships', (table) => {
            table.increments('id').primary();
            table.integer('fleet_id').notNullable().references('fleets.id').onDelete('CASCADE');
            table.integer('ship_design_id').notNullable().references('ship_designs.id').onDelete('CASCADE');
            table.integer('quantity').notNullable().defaultTo(1);
            table.decimal('health_percentage', 5, 2).defaultTo(100.00);
            table.integer('experience').defaultTo(0);
            table.timestamp('created_at').defaultTo(knex.fn.now());
            
            table.index(['fleet_id']);
            table.index(['ship_design_id']);
        });
};

exports.down = function(knex) {
    return knex.schema
        .dropTableIfExists('fleet_ships')
        .dropTableIfExists('ship_designs')
        .dropTableIfExists('fleets');
};