import type { ParseClassSchema, ParseFieldDefinition } from './parse-rest.client.js';
import { ParseRestClient } from './parse-rest.client.js';

const string = (required = false): ParseFieldDefinition => ({ type: 'String', required });
const number = (required = false): ParseFieldDefinition => ({ type: 'Number', required });
const boolean = (required = false): ParseFieldDefinition => ({ type: 'Boolean', required });
const date = (required = false): ParseFieldDefinition => ({ type: 'Date', required });
const object = (required = false): ParseFieldDefinition => ({ type: 'Object', required });
const array = (required = false): ParseFieldDefinition => ({ type: 'Array', required });
const indexes = (prefix: string, ...fields: string[]): Record<string, Record<string, 1>> => Object.fromEntries(
  fields.map((field) => [`${prefix}_${field.toLowerCase()}_idx`, { [field]: 1 }]),
);

export const VOC_PARSE_CLASSES = {
  workspace: 'VocWorkspace',
  sourceConnection: 'VocSourceConnection',
  importBatch: 'VocImportBatch',
  product: 'VocProduct',
  dailyMetric: 'VocDailyMetric',
  productRelation: 'VocProductRelation',
  review: 'VocReview',
  syncJob: 'VocSyncJob',
  syncJobEvent: 'VocSyncJobEvent',
  workspaceMember: 'VocWorkspaceMember',
  analysisRun: 'VocAnalysisRun',
  insightDecision: 'VocInsightDecision',
  actionItem: 'VocActionItem',
  alert: 'VocAlert',
  auditLog: 'VocAuditLog',
  promptConfig: 'VocPromptConfig',
  productKnowledge: 'VocProductKnowledge',
  listingSourceSnapshot: 'VocListingSourceSnapshot',
  listingScoreJob: 'VocListingScoreJob',
  listingScoreItem: 'VocListingScoreItem',
  listingCurrentScore: 'VocListingCurrentScore',
  listingVersion: 'VocListingVersion',
  competitorListingSnapshot: 'VocCompetitorListingSnapshot',
  competitorListingChange: 'VocCompetitorListingChange',
  competitorListingRefreshRun: 'VocCompetitorListingRefreshRun',
  competitorOptimizationTask: 'VocCompetitorOptimizationTask',
} as const;

export const JD_VOC_SCORE_SLOTS = ['jd_voc_rules', 'jd_voc_hybrid_ai'] as const;

export const VOC_PARSE_SCHEMAS: ParseClassSchema[] = [
  {
    className: VOC_PARSE_CLASSES.workspace,
    fields: {
      publicId: string(true), name: string(true), caseName: string(true), status: string(true),
    },
    indexes: indexes('voc_workspace', 'publicId', 'status'),
  },
  {
    className: VOC_PARSE_CLASSES.sourceConnection,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true),
      connectionKind: string(true), status: string(true), metadata: object(true), lastCheckedAt: date(),
    },
    indexes: indexes('voc_source', 'naturalKey', 'workspaceId', 'platform', 'status'),
  },
  {
    className: VOC_PARSE_CLASSES.importBatch,
    fields: {
      publicId: string(true), workspaceId: string(true), platform: string(true), sourceKind: string(true),
      sourceFile: string(), sourceHash: string(), sheets: array(true), status: string(true),
      totalRows: number(true), successRows: number(true), failedRows: number(true),
      productRows: number(true), metricRows: number(true), relationRows: number(true), reviewRows: number(true),
      startedAt: date(), completedAt: date(), sourceDateStart: string(), sourceDateEnd: string(),
      dailyTotals: array(true), quality: object(true),
    },
    indexes: indexes('voc_import', 'publicId', 'workspaceId', 'platform', 'sourceHash', 'status', 'createdAt'),
  },
  {
    className: VOC_PARSE_CLASSES.product,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true), productId: string(true),
      productKey: string(true), role: string(true), brand: string(), title: string(), model: string(),
      category1: string(), category2: string(), category3: string(), source: string(true),
      relationCount: number(true), summary: object(true), trend: array(true), rawPayload: object(),
    },
    indexes: indexes('voc_product', 'naturalKey', 'workspaceId', 'platform', 'productId', 'productKey', 'role', 'category2', 'category3', 'source'),
  },
  {
    className: VOC_PARSE_CLASSES.dailyMetric,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true), productId: string(true),
      metricDate: string(true), source: string(true), gmv: number(true), soldUnits: number(true),
      transactionOrders: number(true), transactionCustomers: number(true), impressions: number(true),
      clicks: number(true), views: number(true), visitors: number(true), cartUnits: number(true),
      orderAmount: number(true), orderUnits: number(true), orderCount: number(true),
      refundAmount: number(true), refundUnits: number(true), refundOrders: number(true),
    },
    indexes: indexes('voc_metric', 'naturalKey', 'workspaceId', 'platform', 'productId', 'metricDate'),
  },
  {
    className: VOC_PARSE_CLASSES.productRelation,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true), relationKey: string(true),
      ownProductId: string(true), ownProductKey: string(true), competitorProductId: string(true),
      competitorProductKey: string(true), competitorBrand: string(), category: string(),
      ownModel: string(), ownCategory1: string(), ownCategory2: string(), ownCategory3: string(),
    },
    indexes: indexes('voc_relation', 'naturalKey', 'workspaceId', 'platform', 'ownProductId', 'competitorProductId'),
  },
  {
    className: VOC_PARSE_CLASSES.review,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true), productId: string(true),
      sourceReviewId: string(), reviewKey: string(true), rating: number(), content: string(true),
      reviewDate: date(), rawPayload: object(),
    },
    indexes: indexes('voc_review', 'naturalKey', 'workspaceId', 'platform', 'productId', 'reviewDate'),
  },
  {
    className: VOC_PARSE_CLASSES.syncJob,
    fields: {
      publicId: string(true), workspaceId: string(true), platform: string(true), idempotencyKey: string(true),
      status: string(true), scopes: array(true), productIds: array(true), progress: number(true),
      attempts: number(true), maxAttempts: number(true), workerId: string(), errorSummary: string(),
      requestedAt: date(true), startedAt: date(), completedAt: date(),
    },
    indexes: indexes('voc_job', 'publicId', 'workspaceId', 'platform', 'idempotencyKey', 'status', 'requestedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.syncJobEvent,
    fields: {
      publicId: string(true), workspaceId: string(true), jobPublicId: string(true), level: string(true),
      eventType: string(true), message: string(true), details: object(true),
    },
    indexes: indexes('voc_job_event', 'publicId', 'workspaceId', 'jobPublicId', 'createdAt'),
  },
  {
    className: VOC_PARSE_CLASSES.workspaceMember,
    fields: {
      naturalKey: string(true), workspaceId: string(true), userId: string(true), email: string(),
      displayName: string(), role: string(true), status: string(true), productIds: array(),
    },
    indexes: indexes('voc_member', 'naturalKey', 'workspaceId', 'userId', 'role', 'status'),
  },
  {
    className: VOC_PARSE_CLASSES.analysisRun,
    fields: {
      publicId: string(true), workspaceId: string(true), analysisType: string(true), targetKind: string(true),
      targetKey: string(true), status: string(true), input: object(true), result: object(),
      evidenceCount: number(true), requestedBy: string(true), errorSummary: string(),
      requestedAt: date(true), startedAt: date(), completedAt: date(),
    },
    indexes: indexes('voc_analysis', 'publicId', 'workspaceId', 'status', 'targetKey', 'requestedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.insightDecision,
    fields: {
      publicId: string(true), workspaceId: string(true), sourceAnalysisId: string(true),
      sourceInsightId: string(true), decision: string(true), reviewedEvidenceIds: array(true),
      comment: string(true), decidedBy: string(true), decidedAt: date(true), version: number(true),
      supersedesId: string(), isCurrent: boolean(true),
    },
    indexes: {
      ...indexes(
        'voc_insight_decision',
        'publicId',
        'workspaceId',
        'sourceAnalysisId',
        'sourceInsightId',
        'decision',
        'decidedBy',
        'decidedAt',
        'isCurrent',
      ),
      voc_insight_decision_source_current_idx: {
        workspaceId: 1,
        sourceAnalysisId: 1,
        sourceInsightId: 1,
        isCurrent: 1,
      },
      voc_insight_decision_source_version_idx: {
        workspaceId: 1,
        sourceAnalysisId: 1,
        sourceInsightId: 1,
        version: -1,
      },
    },
  },
  {
    className: VOC_PARSE_CLASSES.actionItem,
    fields: {
      publicId: string(true), workspaceId: string(true), sourceAnalysisId: string(), sourceInsightId: string(),
      sourceDecisionId: string(), sourceKind: string(true), creationKey: string(true),
      evidenceIds: array(), validationMetric: string(), actionType: string(true),
      title: string(true), description: string(), priority: string(true), status: string(true),
      productKey: string(), assigneeUserId: string(), dueAt: date(), createdBy: string(true), completedAt: date(),
    },
    indexes: {
      ...indexes(
        'voc_action',
        'publicId',
        'workspaceId',
        'sourceAnalysisId',
        'sourceDecisionId',
        'sourceKind',
        'creationKey',
        'status',
        'assigneeUserId',
        'createdAt',
      ),
      voc_action_workspace_creation_key_idx: { workspaceId: 1, creationKey: 1 },
    },
  },
  {
    className: VOC_PARSE_CLASSES.alert,
    fields: {
      publicId: string(true), workspaceId: string(true), alertType: string(true), severity: string(true),
      status: string(true), productKey: string(), title: string(true), summary: string(), evidence: array(true),
      detectedAt: date(true), acknowledgedBy: string(), acknowledgedAt: date(), resolvedAt: date(),
    },
    indexes: indexes('voc_alert', 'publicId', 'workspaceId', 'status', 'productKey', 'detectedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.auditLog,
    fields: {
      publicId: string(true), workspaceId: string(true), actorUserId: string(true), action: string(true),
      entityType: string(true), entityId: string(), metadata: object(true),
    },
    indexes: indexes('voc_audit', 'publicId', 'workspaceId', 'entityType', 'createdAt'),
  },
  {
    className: VOC_PARSE_CLASSES.promptConfig,
    fields: {
      naturalKey: string(true), workspaceId: string(true), promptKey: string(true),
      name: string(true), module: string(true), scope: string(true), description: string(),
      template: string(true), enabled: boolean(true), variables: array(true), dataSources: array(true),
      targetKey: string(), targetStylesJson: string(), model: string(), revision: number(true),
      updatedBy: string(true),
    },
    indexes: indexes('voc_prompt', 'naturalKey', 'workspaceId', 'promptKey', 'module', 'scope'),
  },
  {
    className: VOC_PARSE_CLASSES.productKnowledge,
    fields: {
      naturalKey: string(true), workspaceId: string(true), productKey: string(true), productId: string(true),
      productRole: string(true), featured: boolean(true), status: string(true), tags: array(true),
      note: string(), ownerUserId: string(), createdBy: string(true), updatedBy: string(true),
    },
    indexes: indexes(
      'voc_product_knowledge',
      'naturalKey',
      'workspaceId',
      'productKey',
      'productId',
      'productRole',
      'featured',
      'status',
      'updatedAt',
    ),
  },
  {
    className: VOC_PARSE_CLASSES.listingSourceSnapshot,
    fields: {
      naturalKey: string(true), workspaceId: string(true), platform: string(true), shopId: string(true),
      productId: string(true), sourceHash: string(true), detailStatus: string(true), payload: object(true),
      title: string(), categoryIds: array(), itemStatus: string(), coverageStatus: string(), isCurrent: boolean(),
      catalogIncluded: boolean(), catalogCohort: string(),
      scoreStatus: string(), aiScoreStatus: string(), latestOverallScore: number(), latestKnownScore: number(), latestKnownMaxScore: number(), latestComplianceStatus: string(), latestScoreAt: date(),
      sourceModifiedAt: date(), observedAt: date(true),
    },
    indexes: indexes('voc_listing_source', 'naturalKey', 'workspaceId', 'platform', 'productId', 'sourceHash', 'isCurrent', 'catalogIncluded', 'catalogCohort', 'coverageStatus', 'scoreStatus', 'aiScoreStatus', 'latestOverallScore', 'observedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.listingScoreJob,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), platform: string(true),
      idempotencyKey: string(true), requestHash: string(true), status: string(true), payload: object(true), requestedAt: date(true),
    },
    indexes: indexes('voc_listing_job', 'publicId', 'naturalKey', 'workspaceId', 'status', 'requestedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.listingScoreItem,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), jobId: string(true),
      productId: string(true), sourceHash: string(true), status: string(true), payload: object(true),
    },
    indexes: indexes('voc_listing_item', 'publicId', 'naturalKey', 'workspaceId', 'jobId', 'status', 'productId'),
  },
  {
    className: VOC_PARSE_CLASSES.listingCurrentScore,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), productId: string(true),
      slot: string(true), sourceHash: string(true), rubricVersion: string(true), overallScore: number(), knownOverallScore: number(), knownOverallMaxScore: number(),
      scoreKind: string(), aiStatus: string(), complianceStatus: string(), executionKey: string(), inputFingerprint: string(), payload: object(true), scoredAt: date(true),
    },
    indexes: {
      ...indexes('voc_listing_current_score', 'publicId', 'naturalKey', 'workspaceId', 'productId', 'slot', 'sourceHash', 'executionKey', 'scoredAt'),
      voc_listing_current_score_rubric_version_idx: { workspaceId: 1, productId: 1, rubricVersion: 1 },
      voc_listing_current_score_kind_idx: { workspaceId: 1, productId: 1, scoreKind: 1 },
    },
  },
  {
    className: VOC_PARSE_CLASSES.listingVersion,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), productId: string(true),
      versionNo: number(true), baseSourceHash: string(true), status: string(true), payload: object(true), versionCreatedAt: date(true),
    },
    indexes: indexes('voc_listing_version', 'publicId', 'naturalKey', 'workspaceId', 'productId', 'status', 'versionCreatedAt'),
  },
  {
    className: VOC_PARSE_CLASSES.competitorListingSnapshot,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), platform: string(true),
      productId: string(true), previousSnapshotId: string(), contentHash: string(true), observedAt: date(true),
      title: string(), priceCents: number(), currency: string(true), availability: string(true), mainImageUrl: string(),
      keySpecifications: object(true), observedFields: array(true), collectionStatus: string(true),
    },
    indexes: indexes(
      'voc_competitor_listing_snapshot',
      'publicId',
      'naturalKey',
      'workspaceId',
      'platform',
      'productId',
      'previousSnapshotId',
      'contentHash',
      'observedAt',
    ),
  },
  {
    className: VOC_PARSE_CLASSES.competitorListingChange,
    fields: {
      publicId: string(true), naturalKey: string(true), workspaceId: string(true), platform: string(true),
      productId: string(true), previousSnapshotId: string(true), currentSnapshotId: string(true),
      detectedAt: date(true), changeTypes: array(true), changes: array(true),
    },
    indexes: indexes(
      'voc_competitor_listing_change',
      'publicId',
      'naturalKey',
      'workspaceId',
      'platform',
      'productId',
      'previousSnapshotId',
      'currentSnapshotId',
      'detectedAt',
    ),
  },
  {
    className: VOC_PARSE_CLASSES.competitorListingRefreshRun,
    fields: {
      publicId: string(true), workspaceId: string(true), platform: string(true), trigger: string(true),
      status: string(true), total: number(true), completed: number(true), baseline: number(true),
      unchanged: number(true), changed: number(true), failed: number(true), itemResults: array(true),
      requestedAt: date(true), startedAt: date(), completedAt: date(),
    },
    indexes: indexes(
      'voc_competitor_listing_refresh_run',
      'publicId',
      'workspaceId',
      'platform',
      'status',
      'requestedAt',
    ),
  },
  {
    className: VOC_PARSE_CLASSES.competitorOptimizationTask,
    fields: {
      publicId: string(true), workspaceId: string(true), competitorSnapshotId: string(true), ownProductId: string(true),
      dimension: string(true), creationKey: string(true), status: string(true), impactScore: number(), beforeScore: number(), afterScore: number(), delta: number(), effectiveness: string(),
    },
    indexes: indexes('voc_competitor_optimization_task', 'publicId', 'workspaceId', 'creationKey', 'status', 'competitorSnapshotId', 'ownProductId'),
  },
];

export interface ParseSchemaSyncResult {
  created: string[];
  updated: string[];
  unchanged: string[];
}

export async function ensureVocParseSchemas(client: ParseRestClient): Promise<ParseSchemaSyncResult> {
  return ensureParseSchemas(client, VOC_PARSE_SCHEMAS);
}

export const LISTING_PARSE_SCHEMAS = VOC_PARSE_SCHEMAS.filter((schema) => (
  schema.className === VOC_PARSE_CLASSES.listingSourceSnapshot
  || schema.className === VOC_PARSE_CLASSES.listingScoreJob
  || schema.className === VOC_PARSE_CLASSES.listingScoreItem
  || schema.className === VOC_PARSE_CLASSES.listingCurrentScore
  || schema.className === VOC_PARSE_CLASSES.listingVersion
));

export async function ensureListingParseSchemas(client: ParseRestClient): Promise<ParseSchemaSyncResult> {
  return ensureParseSchemas(client, LISTING_PARSE_SCHEMAS);
}

async function ensureParseSchemas(client: ParseRestClient, schemas: ParseClassSchema[]): Promise<ParseSchemaSyncResult> {
  const existing = new Map((await client.schemas()).map((schema) => [schema.className, schema]));
  const result: ParseSchemaSyncResult = { created: [], updated: [], unchanged: [] };
  for (const schema of schemas) {
    const current = existing.get(schema.className);
    if (!current) {
      await client.createSchema(schema);
      result.created.push(schema.className);
      continue;
    }
    const changed = Object.fromEntries(
      Object.entries(schema.fields).filter(([name, definition]) => {
        const field = current.fields?.[name];
        return !field
          || field.type !== definition.type
          || (field.required !== undefined && Boolean(field.required) !== Boolean(definition.required));
      }),
    );
    const fieldsChanged = Object.keys(changed).length > 0;
    const missingIndexes = Object.fromEntries(
      Object.entries(schema.indexes ?? {}).filter(([name]) => !current.indexes?.[name]),
    );
    const indexesChanged = Object.keys(missingIndexes).length > 0;
    const permissionsChanged = !hasMasterOnlyPermissions(current.classLevelPermissions);
    if (fieldsChanged) {
      await client.addSchemaFields(schema.className, changed);
    }
    if (permissionsChanged) {
      await client.setSchemaPermissions(schema.className);
    }
    if (indexesChanged) {
      await client.addSchemaIndexes(schema.className, missingIndexes);
    }
    if (fieldsChanged || permissionsChanged || indexesChanged) {
      result.updated.push(schema.className);
    } else {
      result.unchanged.push(schema.className);
    }
  }
  return result;
}

export function hasMasterOnlyPermissions(
  permissions: Record<string, Record<string, unknown>> | undefined,
): boolean {
  if (!permissions) return false;
  return ['find', 'get', 'count', 'create', 'update', 'delete', 'addField'].every((operation) => (
    Object.hasOwn(permissions, operation) && Object.keys(permissions[operation] ?? {}).length === 0
  ));
}

export function isVocSchemaReady(classNames: Iterable<string>): boolean {
  const available = new Set(classNames);
  return VOC_PARSE_SCHEMAS.every((schema) => available.has(schema.className));
}

export const requiredVocClassNames = VOC_PARSE_SCHEMAS.map((schema) => schema.className);