/**
 * Adaptive Tactics - Adaptation Tests
 * Tests for memory ledger, trigger evaluation, package selection
 */

import {
    evaluateMajorPackages,
    evaluateMinorModifiers,
    applyPackageEffects,
    applyModifierEffects,
    updateMemoryAfterCycle,
    getAdaptationHint
} from '../js/adaptation.js';

// Test utilities
function assert(condition, message) {
    if (!condition) {
        throw new Error(`FAILED: ${message}`);
    }
    console.log(`PASSED: ${message}`);
}

function createFreshMemory() {
    return {
        primary_lane_history: [],
        eilisia_kill_leads: 0,
        mirella_high_heal_cycles: 0,
        fast_clear_count: 0,
        fracture_line_cycles: 0,
        bait_pull_cycles: 0,
        throne_rush_count: 0,
        last_carry_unit: null,
        turns_to_clear_history: []
    };
}

const mockPackages = {
    western_denial: {
        id: 'western_denial',
        narrativeHint: 'The western path grows treacherous.',
        effect: {
            spawnBias: ['W1', 'W2'],
            preferredUnits: ['hollow_archer', 'fallen_soldier_spear']
        }
    },
    choke_hold: {
        id: 'choke_hold',
        narrativeHint: 'The center will not break so easily.',
        effect: {
            spawnBias: ['C1'],
            preferredUnits: ['fallen_soldier_spear', 'enslaved']
        }
    },
    mirellas_price: {
        id: 'mirellas_price',
        narrativeHint: 'His eyes turn toward your healer.',
        effect: {
            targetPriorityIncrease: 'mirella'
        }
    },
    fast_pressure: {
        id: 'fast_pressure',
        narrativeHint: 'He will not wait for you this time.',
        effect: {
            engagementRadiusBonus: 1,
            forwardFlexPlacement: true
        }
    }
};

const mockModifiers = {
    spear_wall: {
        id: 'spear_wall',
        availableFromCycle: 5,
        narrativeHint: 'The crossings bristle with spears.',
        effect: {
            spawnBias: 'crossings',
            preferredUnits: ['fallen_soldier_spear']
        }
    },
    cruel_recall: {
        id: 'cruel_recall',
        availableFromCycle: 5,
        narrativeHint: 'He remembers who struck hardest.',
        effect: {
            carryTargetBiasMultiplier: 1.5
        }
    }
};

// Test: No Package in Early Cycles
function testNoPackageEarlyCycles() {
    const memory = createFreshMemory();

    const package1 = evaluateMajorPackages(memory, mockPackages, 1);
    assert(package1 === null, 'Cycle 1 should have no package');

    const package2 = evaluateMajorPackages(memory, mockPackages, 2);
    assert(package2 === null, 'Cycle 2 should have no package');
}

// Test: Western Denial Trigger
function testWesternDenialTrigger() {
    const memory = createFreshMemory();
    memory.primary_lane_history = ['west', 'west'];

    const pkg = evaluateMajorPackages(memory, mockPackages, 3);
    assert(pkg === 'western_denial', `Should trigger western_denial, got ${pkg}`);
}

// Test: Choke Hold Trigger
function testChokeHoldTrigger() {
    const memory = createFreshMemory();
    memory.primary_lane_history = ['center', 'center'];

    const pkg = evaluateMajorPackages(memory, mockPackages, 3);
    assert(pkg === 'choke_hold', `Should trigger choke_hold, got ${pkg}`);
}

// Test: Mirella's Price Trigger
function testMirellasPriceTrigger() {
    const memory = createFreshMemory();
    memory.mirella_high_heal_cycles = 1;

    const pkg = evaluateMajorPackages(memory, mockPackages, 3);
    assert(pkg === 'mirellas_price', `Should trigger mirellas_price, got ${pkg}`);
}

// Test: Fast Pressure Trigger
function testFastPressureTrigger() {
    const memory = createFreshMemory();
    memory.fast_clear_count = 2;

    const pkg = evaluateMajorPackages(memory, mockPackages, 3);
    assert(pkg === 'fast_pressure', `Should trigger fast_pressure, got ${pkg}`);
}

// Test: No Modifier Before Cycle 5
function testNoModifierBeforeCycle5() {
    const memory = createFreshMemory();
    memory.last_carry_unit = 'eilisia';

    const mod3 = evaluateMinorModifiers(memory, mockModifiers, 3);
    assert(mod3 === null, 'Cycle 3 should have no modifier');

    const mod4 = evaluateMinorModifiers(memory, mockModifiers, 4);
    assert(mod4 === null, 'Cycle 4 should have no modifier');
}

// Test: Modifier Available at Cycle 5
function testModifierAtCycle5() {
    const memory = createFreshMemory();
    memory.last_carry_unit = 'eilisia';

    const mod = evaluateMinorModifiers(memory, mockModifiers, 5);
    assert(mod !== null, `Cycle 5 should have a modifier, got ${mod}`);
}

// Test: Package Effects Application
function testPackageEffectsApplication() {
    const spawnConfig = {};
    const aiConfig = {};

    applyPackageEffects('western_denial', mockPackages, spawnConfig, aiConfig);

    assert(spawnConfig.biasNodes !== undefined, 'Should set spawn bias nodes');
    assert(spawnConfig.biasNodes.includes('W1'), 'Should include W1 in bias');
    assert(spawnConfig.preferredUnits !== undefined, 'Should set preferred units');
}

// Test: Target Priority Effect
function testTargetPriorityEffect() {
    const spawnConfig = {};
    const aiConfig = {};

    applyPackageEffects('mirellas_price', mockPackages, spawnConfig, aiConfig);

    assert(aiConfig.targetPriority !== undefined, 'Should set target priority');
    assert(aiConfig.targetPriority.mirella > 1, 'Mirella should have elevated priority');
}

// Test: Modifier Effects Application
function testModifierEffectsApplication() {
    const spawnConfig = {};
    const aiConfig = {};

    applyModifierEffects('cruel_recall', mockModifiers, spawnConfig, aiConfig);

    assert(aiConfig.carryBias === 1.5, `Should set carry bias to 1.5, got ${aiConfig.carryBias}`);
}

// Test: Memory Update After Cycle
function testMemoryUpdateAfterCycle() {
    const memory = createFreshMemory();
    const cycleMetrics = {
        playerLaneMovement: { west: 5, center: 2, east: 1 },
        eilisiaKills: 3,
        mirellaHealCount: 4,
        turnsElapsed: 7
    };

    updateMemoryAfterCycle(memory, cycleMetrics);

    assert(memory.primary_lane_history[0] === 'west', 'Should record west as primary lane');
    assert(memory.eilisia_kill_leads === 1, 'Should increment Eilisia kill leads');
    assert(memory.mirella_high_heal_cycles === 1, 'Should increment Mirella heal cycles');
    assert(memory.fast_clear_count === 1, 'Should increment fast clear (7 <= 8)');
    assert(memory.turns_to_clear_history[0] === 7, 'Should record turn count');
}

// Test: Adaptation Hint Generation
function testAdaptationHintGeneration() {
    const hint = getAdaptationHint('western_denial', null, mockPackages, mockModifiers);
    assert(hint.includes('western'), `Hint should mention western, got: ${hint}`);

    const combinedHint = getAdaptationHint('fast_pressure', 'cruel_recall', mockPackages, mockModifiers);
    assert(combinedHint.includes('wait') || combinedHint.includes('remembers'),
        `Combined hint should have both package and modifier content, got: ${combinedHint}`);
}

// Test: Priority of First Triggered Package
function testPackagePriority() {
    const memory = createFreshMemory();
    // Trigger multiple conditions
    memory.primary_lane_history = ['west', 'west'];
    memory.mirella_high_heal_cycles = 1;
    memory.fast_clear_count = 2;

    const pkg = evaluateMajorPackages(memory, mockPackages, 3);
    // Should return first triggered (western_denial comes first in code)
    assert(pkg === 'western_denial', `First triggered package should win, got ${pkg}`);
}

// Run all tests
function runAllTests() {
    console.log('=== Running Adaptation Tests ===\n');

    try {
        testNoPackageEarlyCycles();
        testWesternDenialTrigger();
        testChokeHoldTrigger();
        testMirellasPriceTrigger();
        testFastPressureTrigger();
        testNoModifierBeforeCycle5();
        testModifierAtCycle5();
        testPackageEffectsApplication();
        testTargetPriorityEffect();
        testModifierEffectsApplication();
        testMemoryUpdateAfterCycle();
        testAdaptationHintGeneration();
        testPackagePriority();

        console.log('\n=== All Adaptation Tests Passed ===');
    } catch (e) {
        console.error('\n=== Test Failed ===');
        console.error(e.message);
        throw e;
    }
}

// Export for use in browser or Node
if (typeof window !== 'undefined') {
    window.runAdaptationTests = runAllTests;
}

export { runAllTests };