import assert from 'node:assert/strict';
import Fastify from 'fastify';
import { signAccessToken } from '../dist/auth/jwt.js';
import { InventoryError } from '../dist/inventory/inventory-service.js';
import { registerInventoryRoutes } from '../dist/routes/inventory.js';

const secret = 'test-only-inventory-route-jwt-secret';
const sessionId = '5c4d3af8-c63c-4edb-bf95-b84127bb3f6e';
const token = signAccessToken({
  sub: '21', sid: sessionId, tid: '7', aid: '9', rv: 1
}, secret, 900);
const headers = {
  authorization: `Bearer ${token}`,
  'x-trace-id': 'm09d1-inventory-route'
};

const calls = [];
let currentAccess = { roles: ['STAFF'], capabilities: [], storeIds: ['11'] };
const mutationResult = (input, operation) => ({
  inventoryId: '101',
  ledgerId: '1001',
  storeId: input.storeId,
  skuId: input.skuId,
  operation,
  policyType: input.policyType ?? 'TRACKED',
  availableQuantity: input.availableQuantity ?? 8,
  lockedQuantity: 0,
  lossQuantity: input.lossQuantity ?? 1,
  lowStockThreshold: input.lowStockThreshold ?? 2,
  version: 2,
  idempotent: false
});
const record = (method, result) => async (...args) => {
  calls.push({ method, args });
  return typeof result === 'function' ? result(...args) : result;
};
const mutate = (operation) => record(operation.toLowerCase(), (_actor, input) => {
  if (input.storeId === '12') throw new InventoryError('INVENTORY_STORE_SCOPE_FORBIDDEN');
  if (input.requestId === 'insufficient') {
    throw new InventoryError('INVENTORY_INSUFFICIENT_AVAILABLE');
  }
  return mutationResult(input, operation);
});
const service = {
  listStocks: record('listStocks', (_actor, input) => ({
    items: [], total: 0, page: input.page, pageSize: input.pageSize
  })),
  listLedger: record('listLedger', (_actor, input) => ({
    items: [], total: 0, page: input.page, pageSize: input.pageSize
  })),
  configurePolicy: mutate('CONFIGURE'),
  inbound: mutate('INBOUND'),
  adjust: mutate('ADJUST'),
  stocktake: mutate('STOCKTAKE'),
  recordLoss: mutate('LOSS')
};

const app = Fastify({ logger: false });
app.decorateRequest('traceId', '');
app.addHook('onRequest', async (request, reply) => {
  request.traceId = request.headers['x-trace-id'] || request.id;
  reply.header('x-trace-id', request.traceId);
});
await registerInventoryRoutes(app, {
  service,
  authRepository: {
    async validateSession() {
      return {
        id: sessionId,
        tenantId: '7',
        platformAppId: '9',
        expiresAt: new Date(Date.now() + 60_000),
        user: {
          id: '21', tenantId: '7', userType: 'STAFF', status: 'ACTIVE',
          roleVersion: 1, nickname: '', avatarUrl: '', phone: ''
        }
      };
    }
  },
  accessControl: {
    async getAccessProfile() { return currentAccess; }
  },
  jwtSecret: secret
});

const unauthorized = await app.inject({
  method: 'GET', url: '/admin-api/inventory/stocks?storeId=11'
});
assert.equal(unauthorized.statusCode, 401);
assert.equal(unauthorized.json().code, 'AUTH_SESSION_INVALID');

const forbidden = await app.inject({
  method: 'GET', url: '/admin-api/inventory/stocks?storeId=11', headers
});
assert.equal(forbidden.statusCode, 403);
assert.equal(forbidden.json().code, 'INVENTORY_OPERATION_FORBIDDEN');

currentAccess = {
  roles: ['STAFF'], capabilities: ['platform.manage'], storeIds: []
};
assert.equal((await app.inject({
  method: 'GET', url: '/admin-api/inventory/stocks?storeId=11', headers
})).statusCode, 200, 'platform.manage must authorize inventory reads');
assert.equal((await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/inbound', headers,
  payload: { storeId: '11', requestId: 'platform-inbound', reason: 'platform check', quantity: 1 }
})).statusCode, 200, 'platform.manage must authorize inventory writes');

currentAccess = {
  roles: ['STAFF'], capabilities: ['inventory.read'], storeIds: ['11']
};
const listed = await app.inject({
  method: 'GET',
  url: '/admin-api/inventory/stocks?storeId=11&page=2&pageSize=25&search=tea',
  headers
});
assert.equal(listed.statusCode, 200);
assert.deepEqual(listed.json().data, { items: [], total: 0, page: 2, pageSize: 25 });
const listCall = calls.findLast((call) => call.method === 'listStocks');
assert.equal(listCall.args[0].tenantId, '7');
assert.equal(listCall.args[0].traceId, 'm09d1-inventory-route');
assert.deepEqual(listCall.args[1], {
  storeId: '11', page: 2, pageSize: 25, search: 'tea'
});

const ledger = await app.inject({
  method: 'GET',
  url: '/admin-api/inventory/stocks/101/ledger?storeId=11&page=1&pageSize=10',
  headers
});
assert.equal(ledger.statusCode, 200);
const ledgerCall = calls.find((call) => call.method === 'listLedger');
assert.equal(ledgerCall.args[1].inventoryId, '101');

const readOnlyWrite = await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/inbound', headers,
  payload: { storeId: '11', requestId: 'inbound-1', reason: 'receive', quantity: 2 }
});
assert.equal(readOnlyWrite.statusCode, 403);

currentAccess = {
  roles: ['STORE_ADMIN'], capabilities: ['inventory.adjust'], storeIds: ['11']
};
const invalid = await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/adjust', headers,
  payload: {
    storeId: '11', requestId: 'adjust-zero', reason: 'nothing',
    availableDelta: 0, lossDelta: 0
  }
});
assert.equal(invalid.statusCode, 400);
assert.equal(invalid.json().code, 'INVALID_INVENTORY_REQUEST');

const requests = [
  ['PUT', '/admin-api/inventory/stocks/5/policy', {
    storeId: '11', requestId: 'policy-1', reason: 'configure',
    expectedVersion: 0, policyType: 'TRACKED', lowStockThreshold: 2
  }, 'configure'],
  ['POST', '/admin-api/inventory/stocks/5/inbound', {
    storeId: '11', requestId: 'inbound-1', reason: 'receive', quantity: 2
  }, 'inbound'],
  ['POST', '/admin-api/inventory/stocks/5/adjust', {
    storeId: '11', requestId: 'adjust-1', reason: 'manual correction',
    availableDelta: -1, lossDelta: 1
  }, 'adjust'],
  ['POST', '/admin-api/inventory/stocks/5/stocktake', {
    storeId: '11', requestId: 'stocktake-1', reason: 'count',
    expectedVersion: 1, availableQuantity: 8, lossQuantity: 1
  }, 'stocktake'],
  ['POST', '/admin-api/inventory/stocks/5/loss', {
    storeId: '11', requestId: 'loss-1', reason: 'damaged', quantity: 1
  }, 'loss']
];
for (const [method, url, payload, calledMethod] of requests) {
  const response = await app.inject({ method, url, headers, payload });
  assert.equal(response.statusCode, 200, `${method} ${url}`);
  assert.equal(response.json().code, 0);
  const call = calls.findLast((item) => item.method === calledMethod);
  assert.equal(call.args[1].skuId, '5');
  assert.equal(call.args[1].storeId, '11');
}

for (const [method, url, payload] of [
  ['PUT', '/admin-api/inventory/stocks/5/policy', {
    storeId: '11', requestId: 'policy-no-version', reason: 'configure',
    policyType: 'TRACKED', lowStockThreshold: 2
  }],
  ['POST', '/admin-api/inventory/stocks/5/stocktake', {
    storeId: '11', requestId: 'stocktake-no-version', reason: 'count',
    availableQuantity: 8, lossQuantity: 1
  }]
]) {
  const response = await app.inject({ method, url, headers, payload });
  assert.equal(response.statusCode, 400, `${method} ${url} requires expectedVersion`);
  assert.equal(response.json().code, 'INVALID_INVENTORY_REQUEST');
}

const insufficient = await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/inbound', headers,
  payload: { storeId: '11', requestId: 'insufficient', reason: 'conflict', quantity: 2 }
});
assert.equal(insufficient.statusCode, 409);
assert.equal(insufficient.json().code, 'INVENTORY_INSUFFICIENT_AVAILABLE');

const outOfScope = await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/loss', headers,
  payload: { storeId: '12', requestId: 'loss-outside', reason: 'wrong store', quantity: 1 }
});
assert.equal(outOfScope.statusCode, 403);
assert.equal(outOfScope.json().code, 'INVENTORY_STORE_SCOPE_FORBIDDEN');

const internalRoute = await app.inject({
  method: 'POST', url: '/admin-api/inventory/stocks/5/lock', headers,
  payload: { storeId: '11', requestId: 'lock-1', reason: 'must stay internal', quantity: 1 }
});
assert.equal(internalRoute.statusCode, 404);

await app.close();
console.log('PASS: M09-D1 inventory routes enforce auth, inventory.adjust, validation, error mapping and HTTP boundaries.');