import assert from "node:assert/strict";
import { existsSync, readFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
import test from "node:test";

import {
  loadV9TurnReceipt,
  setV10ConversationFocus,
} from "../src/lib/rectification-agentic/v9/tool-service.ts";
import {
  createRectificationActivityReceiptState,
  receiptFromRectificationActivityState,
  reduceRectificationActivityReceipt,
} from "../src/lib/rectification-activity-receipt.ts";
import {
  CASE_ID,
  EVIDENCE_ID,
  FOCUS_ID,
  TURN_ID,
  USER_ID,
  activeFocusFixture,
  fakeAccounting,
} from "./rectification-v9-test-support.ts";

const migrationFilename = "20260815010000_rectification_focus_receipt_consistency.sql";
const migration = readFileSync(
  new URL(`../supabase/migrations/${migrationFilename}`, import.meta.url),
  "utf8",
);
const migrationCopy = fileURLToPath(
  new URL(`../db/migrations/${migrationFilename}`, import.meta.url),
);

function migrationFunction(name: string, nextMarker: string): string {
  const start = migration.indexOf(`create or replace function public.${name}`);
  const end = migration.indexOf(nextMarker, start);
  assert.notEqual(start, -1, `missing migration function ${name}`);
  assert.notEqual(end, -1, `missing boundary after migration function ${name}`);
  return migration.slice(start, end);
}

test("focus/receipt consistency migration is forward-only and business-tree only", () => {
  assert.ok(migrationFilename > "20260814060000_product_feature_flags.sql");
  assert.match(migration, /^-- Rectification focus RPC[\s\S]*\nbegin;[\s\S]*^commit;$/m);
  assert.equal(existsSync(migrationCopy), false);
});

test("SQL-shaped focus contract returns the same complete row on create and idempotent replay", () => {
  const focusFunction = migrationFunction(
    "set_agentic_rectification_conversation_focus",
    "revoke all on function public.set_agentic_rectification_conversation_focus",
  );
  assert.equal((focusFunction.match(/'focus', to_jsonb\(v_focus\)/g) ?? []).length, 2);
  assert.match(focusFunction, /'focus', to_jsonb\(v_focus\),\s*'idempotent', true/);
  assert.match(focusFunction, /'focus', to_jsonb\(v_focus\),\s*'idempotent', false/);
  assert.doesNotMatch(focusFunction, /'focus_id'/);
});

test("tool service accepts the identical SQL focus envelope for create and replay", async () => {
  let callCount = 0;
  const focus = activeFocusFixture({
    targetEvidenceId: EVIDENCE_ID,
    expectedAnswerSchema: { required: ["month"] },
  });
  const accounting = fakeAccounting({
    set_agentic_rectification_conversation_focus: () => {
      callCount += 1;
      return { focus, idempotent: callCount === 2 };
    },
  });
  const input = {
    questionId: "career-month-question",
    intent: "clarify_event_date",
    targetEvidenceId: EVIDENCE_ID,
    targetDomain: "career",
    targetKind: "career_entry",
    expectedAnswerSchema: { required: ["month"] },
  } as const;

  const created = await setV10ConversationFocus(accounting.client, USER_ID, CASE_ID, input);
  const replayed = await setV10ConversationFocus(accounting.client, USER_ID, CASE_ID, input);

  assert.deepEqual(replayed.focus, created.focus);
  assert.equal(created.focus.id, FOCUS_ID);
  assert.equal(created.idempotent, false);
  assert.equal(replayed.idempotent, true);
});

test("persisted receipt selects the latest attempt and exposes latest terminal tool activity", async () => {
  const receiptFunction = migrationFunction(
    "get_agentic_rectification_turn_receipt",
    "revoke all on function public.get_agentic_rectification_turn_receipt",
  );
  assert.match(receiptFunction, /where turn_id = p_turn_id\s+order by attempt_number desc\s+limit 1/);
  assert.match(receiptFunction, /tr\.status in \('completed', 'failed'\)/);
  assert.match(receiptFunction, /select distinct on \(tr\.tool_name\)/);
  assert.match(receiptFunction, /'tool_activities', v_tool_activities/);
  assert.doesNotMatch(receiptFunction, /where tr\.turn_id = p_turn_id and tr\.status = 'completed'/);

  const accounting = fakeAccounting({
    get_agentic_rectification_turn_receipt: () => ({
      turn_id: TURN_ID,
      attempt_id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
      status: "retryable",
      skill_name: "jyotish-birth-time-rectification",
      skill_version: "9.0.0",
      engine_version: null,
      phases: [{ phase: "run.failed", tool: null }],
      tool_activities: [
        { tool: "rectification-read-case", status: "completed", methods: [] },
        { tool: "rectification-set-focus", status: "failed", methods: ["d1-rashi"] },
      ],
      tools: ["rectification-read-case"],
      methods: [],
      started_at: "2026-08-15T01:00:00.000Z",
      completed_at: null,
    }),
  });

  const receipt = await loadV9TurnReceipt(accounting.client, USER_ID, CASE_ID, TURN_ID);
  assert.ok(receipt);
  assert.deepEqual(receipt.toolActivities, [
    { tool: "rectification-read-case", status: "completed", methods: [] },
    { tool: "rectification-set-focus", status: "failed", methods: [] },
  ]);

  const projectActivities = (activities: typeof receipt.toolActivities) => {
    let state = createRectificationActivityReceiptState();
    for (const activity of activities) {
      state = reduceRectificationActivityReceipt(state, activity);
    }
    return receiptFromRectificationActivityState(state);
  };
  const persistedView = projectActivities(receipt.toolActivities);
  const liveView = projectActivities([
    { tool: "rectification-read-case", status: "completed", methods: [] },
    { tool: "rectification-set-focus", status: "failed", methods: [] },
  ]);
  assert.deepEqual(persistedView, liveView);
  assert.deepEqual(persistedView, {
    steps: ["rectification-read-case"],
    methods: [],
    failedTool: "rectification-set-focus",
  });
});

const caseRoute = readFileSync(
  new URL("../src/app/api/rectification/cases/[caseId]/route.ts", import.meta.url),
  "utf8",
);
const chat = readFileSync(
  new URL("../src/components/rectification-agentic-chat.tsx", import.meta.url),
  "utf8",
);

test("refresh projection rebuilds the same activity receipt from persisted terminal states", () => {
  assert.match(caseRoute, /tool_activities: receipt\.toolActivities\.map/);
  assert.match(chat, /Array\.isArray\(receipt\.tool_activities\)/);
  assert.match(chat, /reduceRectificationActivityReceipt\(state/);
  assert.match(chat, /receiptFromRectificationActivityState\(state\)/);
});