import { describe, expect, it } from 'vitest';
import { render } from 'svelte/server';
import type { ProvisioningDetail, ProvisioningProgress } from '../../src/lib/provisioning-detail.js';
import { provisioningActions } from '../../src/lib/provisioning.js';
import { isProvisioningDetail, isProvisioningEventPage, provisioningGroups, provisioningOutcome, provisioningRequester, provisioningReturn } from '../../src/lib/ui/provisioning-presentation.js';
import ProvisioningProgressView from '../../src/lib/ui/components/ProvisioningProgress.svelte';

const at = '2026-09-28T12:00:00Z';
function progress(patch: Partial<ProvisioningProgress> = {}): ProvisioningProgress {
    return { version: 1, phase: 'verify-map', phaseStartedAt: at, observedAt: at, blocker: null, checks: [], checkpoints: [],
        command: null, recovery: null, recipeStatus: null, ...patch };
}
function fixture(): ProvisioningDetail {
    return {
        deployment: { id: 'operation-a', server: 't5_zombie_theater_1', action: 'create', state: 'awaiting-health', stage: 'Waiting for a map',
            server_deleted_at: null, server_exists: 1, started_at: at, finished_at: null, triggered_by: 'ui', error: null, warnings: '[]' },
        generatedAt: at, events: [], activity: { total: 0, latestId: null, failureExcerpt: null }, sources: [],
        recipe: null, blueprintName: null, canResumeCleanup: false, canResumeRebuild: false, canResumeVerification: false, canCancelRemoval: false,
        collection: null, progress: progress(), capacity: { evaluatedAt: at, pools: [] }, warningMessages: []
    };
}

describe('provisioning outcome and evidence presentation', () => {
    it('shows recorded usernames and preserves unknown manual requesters', () => {
        expect(provisioningRequester({ triggered_by: 'ui', requested_by: 'alice' })).toBe('alice');
        expect(provisioningRequester({ triggered_by: 'rebalance:run', requested_by: 'bob' })).toBe('bob');
        expect(provisioningRequester({ triggered_by: 'ui', requested_by: null })).toBe('Not recorded');
        expect(provisioningRequester({ triggered_by: 'ui' })).toBe('Not recorded');
    });

    it.each(['watchdog:incident', 'maintenance:job', 'autoscaling:policy', 'campaign:run', 'beta:75', 'rebalance:run', 'host-drain'])(
        'shows Maxis for system work from %s', triggered_by => {
            expect(provisioningRequester({ triggered_by, requested_by: null })).toBe('Maxis');
            expect(provisioningRequester({ triggered_by })).toBe('Maxis');
        });

    it('distinguishes a failed creation retry from readiness verification and its linked recovery', () => {
        const detail = fixture();
        detail.deployment.state = 'failed';
        detail.canRetryWithRebuild = true;
        expect(provisioningOutcome(detail)).toMatchObject({ active: false, headline: 'Create failed' });
        expect(provisioningOutcome(detail).description).toContain('new attempt for the same lobby and port');
        detail.canRetryWithRebuild = false;
        detail.progress = progress({ recovery: { state: 'transferred', operationId: 'recovery-a', at, message: 'Rebuild requested' } });
        expect(provisioningOutcome(detail).headline).toBe('Create failed');
        expect(provisioningOutcome(detail).description).toContain('linked operation');
        detail.progress = progress();
        detail.canResumeVerification = true;
        expect(provisioningOutcome(detail).description).toContain('remaining restart and rebuild recovery steps');
    });
    it('distinguishes cancellation from confirmed cleanup and validates its link data', () => {
        const detail = fixture();
        detail.deployment.state = 'cancelled';
        detail.canCancelCreation = false;
        detail.cancellation = { cleanupId: 'cleanup-a', state: 'running', stage: 'Waiting for host', error: null };
        expect(isProvisioningDetail(detail, detail.deployment.id)).toBe(true);
        expect(provisioningOutcome(detail).description).toContain('ports remain reserved');
        detail.cancellation.state = 'done';
        expect(provisioningOutcome(detail).description).toContain('have been removed');
        expect(isProvisioningDetail({ ...detail, cancellation: { state: 'done' } }, detail.deployment.id)).toBe(false);
    });
    it.each(provisioningActions)('describes cancelled %s as terminal, with no automatic execution claim', action => {
        const detail = fixture();
        detail.deployment.action = action;
        detail.deployment.state = 'cancelled';
        const outcome = provisioningOutcome(detail);
        expect(outcome.active).toBe(false);
        expect(outcome.headline).toContain('cancelled');
        expect(outcome.description).toContain('remaining work will not run');
        expect(outcome.description).not.toMatch(/verifying|automatically/);
    });

    it('keeps backend-authorized cleanup actionable and active after identity deletion', () => {
        const detail = fixture();
        detail.deployment.action = 'destroy';
        detail.deployment.state = 'failed';
        detail.deployment.server_deleted_at = at;
        detail.deployment.server_exists = 0;
        detail.canResumeCleanup = true;
        expect(provisioningOutcome(detail).description).toContain('Resume the remaining local cleanup');
        detail.deployment.state = 'waiting';
        detail.canResumeCleanup = false;
        detail.progress = progress({ phase: 'cleanup', checks: [] });
        expect(provisioningOutcome(detail).active).toBe(true);
        expect(provisioningOutcome(detail).description).toContain('without repeating container removal');
        expect(provisioningOutcome(detail).description).not.toContain('eligibility');
    });

    it('does not invent completed phases from a later phase or final outcome', () => {
        const detail = fixture();
        const steps = provisioningGroups(detail).flatMap(group => group.steps);
        expect(steps.find(step => step.key === 'prepare')?.state).toBe('unknown');
        expect(steps.find(step => step.key === 'verify-map')?.state).toBe('current');
        detail.deployment.state = 'done';
        expect(provisioningGroups(detail).flatMap(group => group.steps).every(step => step.state === 'unknown')).toBe(true);
        detail.progress = null;
        expect(provisioningGroups(detail)).toEqual([]);
        expect(provisioningOutcome(detail).description).toContain('evidence was not recorded');
    });

    it('shows passed container and telemetry game checks while waiting on the engine map', () => {
        const detail = fixture();
        detail.progress = progress({ checks: [
            { key: 'container', label: 'Container readiness', result: 'pass', source: 'agent', checkedAt: at, receivedAt: null, expected: 'healthy', actual: 'healthy', message: null },
            { key: 'game', label: 'Game status', result: 'pass', source: 'telemetry', checkedAt: at, receivedAt: at, expected: null, actual: null, message: 'Fresh telemetry accepted' },
            { key: 'map', label: 'Engine map', result: 'waiting', source: 'telemetry', checkedAt: at, receivedAt: at, expected: 'zombie_theater', actual: 'zombie_moon', message: null }
        ] });
        const steps = provisioningGroups(detail).flatMap(group => group.steps);
        expect(steps.find(step => step.key === 'verify-container')?.state).toBe('done');
        expect(steps.find(step => step.key === 'verify-game')?.state).toBe('done');
        expect(steps.find(step => step.key === 'verify-map')?.state).toBe('waiting');
        expect(steps.find(step => step.key === 'verify-game')?.label).not.toContain('RCON');
        detail.deployment.state = 'done';
        expect(provisioningOutcome(detail).description).not.toContain('RCON');
    });

    it('newer unknown readiness evidence supersedes an old completion checkpoint', () => {
        const detail = fixture();
        detail.progress = progress({ checkpoints: [{ key: 'verify-game', label: 'Game passed', at, phase: 'verify-game' }],
            checks: [{ key: 'game', label: 'Game status', result: 'unknown', source: null, checkedAt: '2026-09-28T12:01:00Z', receivedAt: null, expected: null, actual: null, message: 'No fresh evidence' }] });
        expect(provisioningGroups(detail).flatMap(group => group.steps).find(step => step.key === 'verify-game')).toMatchObject({ state: 'unknown', at: '2026-09-28T12:01:00Z' });
    });

    it.each(['failed', 'interrupted'])('shows where an unhealthy container stopped a %s operation', state => {
        const detail = fixture();
        detail.deployment.state = state;
        detail.deployment.finished_at = at;
        detail.progress = progress({ phase: 'verify-container',
            checkpoints: [{ key: 'container-action', label: 'Host command completed', at, phase: 'container-action' }],
            checks: [{ key: 'container', label: 'Container readiness', result: 'waiting', source: 'agent', checkedAt: at, receivedAt: null,
                expected: 'healthy', actual: 'unhealthy', message: null }] });
        const groups = provisioningGroups(detail);
        expect(groups.flatMap(group => group.steps).find(step => step.key === 'container-action')?.state).toBe('done');
        expect(groups.find(group => group.key === 'verify')).toMatchObject({ state: 'failed', steps: [
            { key: 'verify-container', state: 'failed', at },
            { key: 'verify-game', state: 'cancelled', at: null },
            { key: 'verify-map', state: 'cancelled', at: null },
            { key: 'verify-plutonium', state: 'cancelled', at: null }
        ] });
        const body = render(ProvisioningProgressView, { props: { detail } }).body;
        const phases = body.slice(0, body.indexOf('Latest recorded checks'));
        expect(phases.match(/Stopped here/g)).toHaveLength(2);
        expect(phases.match(/Not run/g)).toHaveLength(3);
        expect(phases).not.toContain('Waiting');
        expect(phases).toMatch(/<li class="[^"]*\bfailed\b/);
        expect(phases).not.toMatch(/<li class="[^"]*\bcurrent\b/);
        expect(phases).not.toContain('aria-current="step"');
        expect(detail.progress.checks[0].result).toBe('waiting');
    });

    it.each(['failed', 'interrupted'])('marks the current step of a %s operation even without conclusive check evidence', state => {
        const detail = fixture();
        detail.deployment.state = state;
        detail.progress = progress();
        expect(provisioningGroups(detail).flatMap(group => group.steps).find(step => step.key === 'verify-map')?.state).toBe('failed');
        detail.progress.checks = [{ key: 'map', label: 'Engine map', result: 'unknown', source: null, checkedAt: at, receivedAt: null,
            expected: 'zombie_theater', actual: null, message: 'No fresh evidence' }];
        const steps = provisioningGroups(detail).flatMap(group => group.steps);
        expect(steps.find(step => step.key === 'verify-map')?.state).toBe('failed');
        expect(steps.find(step => step.key === 'verify-plutonium')?.state).toBe('cancelled');
        expect(steps.find(step => step.key === 'prepare')?.state).toBe('unknown');
    });

    it.each(['done', 'warning', 'cancelled', 'failed', 'interrupted'])('does not highlight stale waiting evidence as active on a %s operation', state => {
        const detail = fixture();
        detail.progress = progress({ phase: 'verify-container', checks: [
            { key: 'container', label: 'Container readiness', result: 'waiting', source: 'agent', checkedAt: at, receivedAt: null,
                expected: 'healthy', actual: 'starting', message: null }
        ] });
        const activeBody = render(ProvisioningProgressView, { props: { detail } }).body;
        expect(activeBody).toMatch(/<li class="[^"]*\bcurrent\b/);
        expect(activeBody).toContain('aria-current="step"');
        detail.deployment.state = state;
        detail.deployment.finished_at = at;
        const finishedBody = render(ProvisioningProgressView, { props: { detail } }).body;
        expect(finishedBody).not.toMatch(/<li class="[^"]*\bcurrent\b/);
        expect(finishedBody).not.toContain('aria-current="step"');
    });

    it.each(['create', 'rebuild'] as const)('shows %s Plutonium verification from runtime evidence, separately from the release manifest', action => {
        const detail = fixture();
        detail.deployment.action = action;
        detail.progress = progress({ phase: 'verify-plutonium',
            checks: [
                { key: 'plutonium-release', label: 'Production Plutonium release', result: 'pass', source: 'manifest', checkedAt: at, receivedAt: at, expected: null, actual: 5200, message: null },
                { key: 'plutonium-version', label: 'Running Plutonium revision', result: 'unknown', source: 'rcon', checkedAt: at, receivedAt: null, expected: 5200, actual: null, message: 'Waiting for a runtime revision' }
            ] });
        expect(isProvisioningDetail(detail, detail.deployment.id)).toBe(true);
        for (const [result, state] of [['unknown', 'unknown'], ['waiting', 'waiting'], ['fail', 'failed'], ['pass', 'done']] as const) {
            detail.progress.checks[1].result = result;
            const steps = provisioningGroups(detail).find(group => group.key === 'verify')!.steps;
            expect(steps.at(-1)).toMatchObject({ key: 'verify-plutonium', label: 'Verify Plutonium revision', state, at });
        }
    });

    it.each(['start', 'restart', 'stop', 'destroy'] as const)('does not add Plutonium verification to %s', action => {
        const detail = fixture();
        detail.deployment.action = action;
        expect(provisioningGroups(detail).flatMap(group => group.steps).some(step => step.key === 'verify-plutonium')).toBe(false);
    });

    it('does not claim historical creations verified Plutonium without evidence', () => {
        const detail = fixture();
        detail.deployment.state = 'done';
        detail.progress = progress({ checkpoints: [{ key: 'verify-map', label: 'Selected map verified', at, phase: 'verify-map' }] });
        expect(provisioningGroups(detail).flatMap(group => group.steps).find(step => step.key === 'verify-plutonium'))
            .toMatchObject({ state: 'unknown', at: null });
    });

    it('preserves the failed request when later recovery checks pass', () => {
        const detail = fixture();
        detail.deployment.action = 'restart'; detail.deployment.state = 'failed';
        detail.progress = progress({ phase: 'verify-game', recovery: { state: 'released', at, message: 'Recovery verified and capacity released.' },
            checks: [{ key: 'game', label: 'Game status', result: 'pass', source: 'rcon', checkedAt: at, receivedAt: null, expected: null, actual: 0, message: null }] });
        expect(provisioningOutcome(detail).headline).toBe('Restart failed');
        expect(provisioningGroups(detail).flatMap(group => group.steps).find(step => step.key === 'verify-game')?.state).toBe('done');
    });

    it('keeps confirmed agent removal separate from registry cleanup', () => {
        const detail = fixture(); detail.deployment.action = 'destroy'; detail.deployment.state = 'waiting';
        detail.progress = progress({ phase: 'cleanup', checkpoints: [{ key: 'container-action', label: 'Agent confirmed removal', at, phase: 'container-action' }] });
        const groups = provisioningGroups(detail);
        expect(groups.map(group => group.key)).toEqual(['request', 'command', 'cleanup']);
        expect(groups.flatMap(group => group.steps).find(step => step.key === 'container-action')?.state).toBe('done');
        expect(groups.flatMap(group => group.steps).find(step => step.key === 'cleanup')?.state).toBe('waiting');
    });
});

describe('provisioning response and return-context boundaries', () => {
    it('accepts optional retry eligibility only as an authoritative boolean', () => {
        const detail = fixture();
        for (const canRetryWithRebuild of [undefined, false, true]) {
            expect(isProvisioningDetail({ ...detail, canRetryWithRebuild }, detail.deployment.id)).toBe(true);
        }
        for (const canRetryWithRebuild of ['true', 1, null]) {
            expect(isProvisioningDetail({ ...detail, canRetryWithRebuild }, detail.deployment.id)).toBe(false);
        }
    });
    it('accepts persisted usernames and legacy details but rejects malformed requesters', () => {
        const detail = fixture();
        for (const requested_by of [undefined, null, 'alice']) {
            expect(isProvisioningDetail({ ...detail, deployment: { ...detail.deployment, requested_by } }, detail.deployment.id)).toBe(true);
        }
        expect(isProvisioningDetail({ ...detail, deployment: { ...detail.deployment, requested_by: 42 } }, detail.deployment.id)).toBe(false);
    });

    it('retains list filters without accepting an external or unrelated return destination', () => {
        expect(provisioningReturn('/provisioning?view=history&action=restart&server=Lobby+1&limit=50&redirect=https://evil.test').href)
            .toBe('/provisioning?view=history&action=restart&server=Lobby+1&limit=50');
        expect(provisioningReturn('/provisioning?view=history&limit=25&offset=100').href)
            .toBe('/provisioning?view=history&limit=25&offset=100');
        expect(provisioningReturn('/provisioning?view=history&source=campaign&status=failed&offset=25').href)
            .toBe('/provisioning?view=history&status=failed&source=campaign&offset=25');
        for (const value of ['https://evil.test', '//evil.test', '/\\evil.test', '/\n/evil.test', '/settings', '/provisioning/other']) {
            expect(provisioningReturn(value).href).toBe('/provisioning');
        }
        expect(provisioningReturn('/collections/launches/launch-a').href).toBe('/collections/launches/launch-a');
    });

    it('returns rebalance moves to their run while discarding unrelated navigation parameters', () => {
        expect(provisioningReturn('/capacity?rebalance=1&rebalanceRun=run-a&redirect=https://evil.test'))
            .toEqual({ href: '/capacity?rebalance=1&rebalanceRun=run-a', label: 'Back to rebalance' });
        expect(provisioningReturn('/capacity?rebalance=1')).toEqual({ href: '/capacity?rebalance=1', label: 'Back to rebalance' });
        expect(provisioningReturn('/capacity?rebalanceRun=run-a').href).toBe('/provisioning');
        const detail = fixture();
        detail.sources = [{ kind: 'rebalance', source_id: 'run-a', label: 'Rebalance', href: '/capacity?rebalance=1&rebalanceRun=run-a' }];
        expect(isProvisioningDetail(detail, detail.deployment.id)).toBe(true);
        detail.sources[0].href = '//evil.test';
        expect(isProvisioningDetail(detail, detail.deployment.id)).toBe(false);
    });

    it('rejects incomplete nested snapshots before they replace a working detail', () => {
        const detail = fixture();
        expect(isProvisioningDetail(detail, detail.deployment.id)).toBe(true);
        expect(isProvisioningDetail(detail, 'another-id')).toBe(false);
        for (const patch of [
            { progress: undefined }, { progress: {} }, { progress: { ...detail.progress, checks: [null] } },
            { capacity: { evaluatedAt: at, pools: [{ kind: 'restart', holders: null }] } }, { activity: { total: 0 } },
            { warningMessages: {} }, { recipe: { files: [] } }, { sources: [{ kind: 'campaign', label: 'Campaign', source_id: 'a', href: 'javascript:alert(1)' }] }
        ]) expect(isProvisioningDetail({ ...detail, ...patch }, detail.deployment.id)).toBe(false);
        expect(isProvisioningDetail({ ...detail, progress: { ...detail.progress, command: { state: 'rejected', at, message: 'Rejected before submission' } } }, detail.deployment.id)).toBe(true);
    });

    it('rejects an invalid history event without dropping the existing history view', () => {
        const page = { events: [{ id: 1, created_at: at, message: 'Queued' }], total: 1, totalEvents: 1, latestId: 1, watermark: 1, nextCursor: null };
        expect(isProvisioningEventPage(page)).toBe(true);
        expect(isProvisioningEventPage({ ...page, events: [{ id: 1, created_at: 'invalid', message: 'Queued' }] })).toBe(false);
    });
});