import assert from "node:assert/strict";
import { describe, it } from "node:test";
import {
  ALERT_SEARCH_DIGEST_BUCKETS,
  alertSearchDigestDebugSummary,
  buildAlertSearchDigest,
} from "../../src/alertSearch/digest.js";
import { emptyEndorserData, emptyPartnerData } from "../../src/alertSearch/client.js";
import type { AlertSearchSourceResult, RetrieveAlertSearchResult } from "../../src/alertSearch/retrieve.js";
import type {
  AlertSearchClaimRecord,
  AlertSearchFailureReason,
  AlertSearchJwtWithClaimRecord,
  AlertSearchPlanRecord,
  AlertSearchProfileRecord,
  AlertSearchQueryOutcome,
  CombinedAlertSearchData,
  EndorserAlertSearchData,
  PartnerAlertSearchData,
} from "../../src/alertSearch/types.js";

function ulid(n: number): string {
  return `01H${String(n).padStart(23, "0")}`;
}

function claim(n: number): AlertSearchClaimRecord {
  return {
    id: ulid(n),
    issuedAt: "2026-01-01T00:00:00Z",
    issuer: `did:ethr:0x${n}`,
  };
}

function jwtClaim(n: number): AlertSearchJwtWithClaimRecord {
  return { ...claim(n), claim: `claim-${n}` };
}

function plan(n: number): AlertSearchPlanRecord {
  return { handleId: `plan-${n}`, jwtId: ulid(n), name: `Plan ${n}` };
}

function profile(n: number): AlertSearchProfileRecord {
  return {
    issuerDid: `did:ethr:0xp${n}`,
    description: `profile-${n}`,
    updatedAt: "2026-03-01T00:00:00.000Z",
    rowId: n,
  };
}

function endorserResult(
  outcome: AlertSearchQueryOutcome,
  data: EndorserAlertSearchData = emptyEndorserData(),
  extra?: Partial<AlertSearchSourceResult<EndorserAlertSearchData>>
): AlertSearchSourceResult<EndorserAlertSearchData> {
  return { outcome, pageCount: 1, data, ...extra };
}

function partnerResult(
  outcome: AlertSearchQueryOutcome,
  data: PartnerAlertSearchData = emptyPartnerData(),
  extra?: Partial<AlertSearchSourceResult<PartnerAlertSearchData>>
): AlertSearchSourceResult<PartnerAlertSearchData> {
  return { outcome, pageCount: 1, data, ...extra };
}

function retrieved(
  endorser: AlertSearchSourceResult<EndorserAlertSearchData>,
  partner: AlertSearchSourceResult<PartnerAlertSearchData>
): RetrieveAlertSearchResult {
  const data: CombinedAlertSearchData = {
    ...endorser.data,
    ...partner.data,
  };
  return { data, empty: false, endorser, partner };
}

function populatedEndorser(): EndorserAlertSearchData {
  return {
    claims: [claim(1), claim(2), claim(3)],
    personalPlanContributions: [jwtClaim(10)],
    trackedPlanUpdates: [plan(20)],
    trackedPlanClaims: [jwtClaim(30), jwtClaim(31)],
    plansNearby: [plan(40)],
  };
}

describe("buildAlertSearchDigest", () => {
  it("preserves all six buckets and their records when populated", () => {
    const endorserData = populatedEndorser();
    const partnerData = {
      profilesNearby: [profile(1), profile(2)],
    };
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", endorserData),
        partnerResult("success", partnerData)
      )
    );
    assert.equal(digest.completed, true);
    assert.equal(digest.hasUpdates, true);
    assert.equal(digest.counts.claims, 3);
    assert.equal(digest.counts.personalPlanContributions, 1);
    assert.equal(digest.counts.trackedPlanUpdates, 1);
    assert.equal(digest.counts.trackedPlanClaims, 2);
    assert.equal(digest.counts.plansNearby, 1);
    assert.equal(digest.counts.profilesNearby, 2);
    assert.equal(digest.totalCount, 10);
    assert.deepEqual(digest.records.claims, endorserData.claims);
    assert.deepEqual(
      digest.records.personalPlanContributions,
      endorserData.personalPlanContributions
    );
    assert.deepEqual(digest.records.trackedPlanUpdates, endorserData.trackedPlanUpdates);
    assert.deepEqual(digest.records.trackedPlanClaims, endorserData.trackedPlanClaims);
    assert.deepEqual(digest.records.plansNearby, endorserData.plansNearby);
    assert.deepEqual(digest.records.profilesNearby, partnerData.profilesNearby);
    assert.equal(digest.records.claims[0], endorserData.claims[0]);
    assert.notEqual(digest.records.claims, endorserData.claims);
  });

  it("supports a single populated bucket", () => {
    const claims = [claim(1), claim(2)];
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", { ...emptyEndorserData(), claims }),
        partnerResult("empty")
      )
    );
    assert.equal(digest.completed, true);
    assert.equal(digest.hasUpdates, true);
    assert.equal(digest.totalCount, 2);
    assert.equal(digest.counts.claims, 2);
    for (const bucket of ALERT_SEARCH_DIGEST_BUCKETS) {
      if (bucket !== "claims") assert.equal(digest.counts[bucket], 0);
    }
    assert.equal(digest.records.claims.length, 2);
    assert.equal(digest.records.claims[1].id, ulid(2));
  });

  it("supports multiple populated buckets without dropping others", () => {
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", {
          ...emptyEndorserData(),
          claims: [claim(1), claim(2), claim(3)],
          trackedPlanUpdates: [plan(20)],
        }),
        partnerResult("success", { profilesNearby: [profile(1), profile(2)] })
      )
    );
    assert.equal(digest.completed, true);
    assert.equal(digest.hasUpdates, true);
    assert.equal(digest.totalCount, 6);
    assert.equal(digest.counts.claims, 3);
    assert.equal(digest.counts.trackedPlanUpdates, 1);
    assert.equal(digest.counts.profilesNearby, 2);
    assert.equal(digest.records.claims.length, 3);
    assert.equal(digest.records.trackedPlanUpdates[0].handleId, "plan-20");
    assert.equal(digest.records.profilesNearby[1].description, "profile-2");
  });

  it("treats a successful empty retrieve as complete with no updates", () => {
    const digest = buildAlertSearchDigest(
      retrieved(endorserResult("empty"), partnerResult("empty"))
    );
    assert.equal(digest.completed, true);
    assert.equal(digest.hasUpdates, false);
    assert.equal(digest.totalCount, 0);
    for (const bucket of ALERT_SEARCH_DIGEST_BUCKETS) {
      assert.equal(digest.counts[bucket], 0);
      assert.equal(digest.records[bucket].length, 0);
    }
    assert.equal(
      alertSearchDigestDebugSummary(digest).includes("You have"),
      false
    );
  });

  it("does not mark a digest complete when Endorser succeeds and Partner fails", () => {
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", { ...emptyEndorserData(), claims: [claim(1)] }),
        partnerResult("auth", emptyPartnerData(), {
          reason: "auth",
          message: "HTTP 401",
        })
      )
    );
    assert.equal(digest.completed, false);
    assert.equal(digest.hasUpdates, false);
    assert.equal(digest.endorser.completed, true);
    assert.equal(digest.endorser.outcome, "success");
    assert.equal(digest.partner.completed, false);
    assert.equal(digest.partner.outcome, "auth");
    assert.equal(digest.partner.reason, "auth");
    assert.equal(digest.records.claims.length, 1);
    assert.equal(digest.totalCount, 1);
  });

  it("does not mark a digest complete when Partner succeeds and Endorser fails", () => {
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("network", emptyEndorserData(), {
          reason: "network",
          message: "fetch failed",
        }),
        partnerResult("success", { profilesNearby: [profile(1)] })
      )
    );
    assert.equal(digest.completed, false);
    assert.equal(digest.hasUpdates, false);
    assert.equal(digest.endorser.outcome, "network");
    assert.equal(digest.partner.outcome, "success");
    assert.equal(digest.records.profilesNearby.length, 1);
  });

  it("does not treat pagination or other incomplete outcomes as a completed digest", () => {
    const incomplete: AlertSearchFailureReason[] = [
      "pagination",
      "auth",
      "timeout",
      "network",
      "malformed",
      "http",
    ];
    for (const outcome of incomplete) {
      const digest = buildAlertSearchDigest(
        retrieved(
          endorserResult(outcome, emptyEndorserData(), { reason: outcome }),
          partnerResult("empty")
        )
      );
      assert.equal(digest.completed, false, outcome);
      assert.equal(digest.hasUpdates, false, outcome);
      assert.equal(digest.endorser.outcome, outcome);
    }
  });

  it("sums counts across all six buckets", () => {
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", populatedEndorser()),
        partnerResult("success", { profilesNearby: [profile(1), profile(2)] })
      )
    );
    const sum = ALERT_SEARCH_DIGEST_BUCKETS.reduce(
      (n, bucket) => n + digest.counts[bucket],
      0
    );
    assert.equal(digest.totalCount, sum);
    assert.equal(digest.totalCount, 10);
  });

  it("preserves underlying records rather than reducing them to counts", () => {
    const extra = { claimType: "AgreeAction", subject: "did:ethr:0xabc" };
    const row = { ...claim(7), ...extra };
    const digest = buildAlertSearchDigest(
      retrieved(
        endorserResult("success", { ...emptyEndorserData(), claims: [row] }),
        partnerResult("empty")
      )
    );
    assert.equal(digest.counts.claims, 1);
    assert.equal(digest.records.claims[0].id, ulid(7));
    assert.equal(digest.records.claims[0].claimType, "AgreeAction");
    assert.equal(digest.records.claims[0].subject, "did:ethr:0xabc");
    assert.deepEqual(digest.records.claims[0], row);
  });

  it("is not notification-worthy when total count is zero", () => {
    const digest = buildAlertSearchDigest(
      retrieved(endorserResult("success"), partnerResult("success"))
    );
    assert.equal(digest.completed, true);
    assert.equal(digest.totalCount, 0);
    assert.equal(digest.hasUpdates, false);
  });
});