import { module, test } from 'qunit';
import { setupTest } from 'ember-qunit';
import contributors from '../../fixtures/contributors';
import contributions from '../../fixtures/contributions';
import ContributionModel from 'kredits-web/models/contribution';
import processContributionData from 'kredits-web/utils/process-contribution-data';

module('Unit | Service | kredits', function(hooks) {
  setupTest(hooks);

  test('#contributionsConfirmed', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributions', contributions);
    service.set('currentBlock', 1023);

    const items = service.contributionsConfirmed;
    assert.equal(items.length, 5);
  });

  test('#contributionsUnconfirmed', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributions', contributions);
    service.set('currentBlock', 1023);

    const items = service.contributionsUnconfirmed;
    assert.equal(items.length, 5);
  });

  test('#kreditsByContributor', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);
    service.set('currentBlock', 1023);

    const kreditsByContributor = service.kreditsByContributor;

    assert.equal(kreditsByContributor.length, 3, 'includes all contributors with confirmed kredits');

    const c1 = kreditsByContributor.find(k => k.contributor.id == 1);
    assert.equal(c1.amountConfirmed, 11500, 'correct amount confirmed');
    assert.equal(c1.amountUnconfirmed, 5000, 'correct amount unconfirmed');
    assert.equal(c1.amountTotal, 16500, 'correct amount total');

    const c2 = kreditsByContributor.find(k => k.contributor.id == 2);
    assert.equal(c2.amountConfirmed, 3000, 'correct amount confirmed');
    assert.equal(c2.amountUnconfirmed, 1500, 'correct amount unconfirmed');
    assert.equal(c2.amountTotal, 4500, 'correct amount total');

    const c3 = kreditsByContributor.find(k => k.contributor.id == 3);
    assert.equal(c3.amountConfirmed, 0, 'correct amount confirmed');
    assert.equal(c3.amountUnconfirmed, 6500, 'correct amount unconfirmed');
    assert.equal(c3.amountTotal, 6500, 'correct amount total');
  });

  test('#contributorsSorted', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);

    assert.ok(service.contributorsSorted instanceof Array, 'is an array');
    assert.equal(service.contributorsSorted[1].name, 'Manuel', 'sorts by name');
  });

  test('#contributionsGrouped groups contributions sharing a url', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);

    const grouped = service.contributionsGrouped;

    // 11 contributions: 3 groups ({1,3}, {7,8}, {10,11}) + 5 singletons
    assert.equal(grouped.length, 8, 'produces one group per unique key plus singletons');

    const ghGroup = grouped.findBy('groupId', contributions.findBy('id', 1).groupId);
    assert.ok(ghGroup, 'github url group exists');
    assert.ok(ghGroup.isGrouped, 'github group is flagged as grouped');
    assert.equal(ghGroup.items.length, 2, 'github group has two contributions');
    assert.deepEqual(ghGroup.contributorIds, [1, 2], 'github group lists both contributor ids');
    assert.equal(ghGroup.contributors.length, 2, 'github group resolves both contributors');
    assert.equal(ghGroup.totalAmount, 3000, 'github group sums amounts (1500 + 1500)');
    assert.equal(ghGroup.kind, 'dev', 'github group takes kind from first item');
    assert.equal(ghGroup.url, 'https://github.com/67P/kredits-contracts/pull/196');

    const giteaGroup = grouped.findBy('groupId', contributions.findBy('id', 7).groupId);
    assert.ok(giteaGroup, 'gitea url group exists');
    assert.ok(giteaGroup.isGrouped, 'gitea group is flagged as grouped');
    assert.deepEqual(giteaGroup.contributorIds, [3, 1], 'gitea group lists both contributor ids');
    assert.equal(giteaGroup.totalAmount, 10000, 'gitea group sums amounts (5000 + 5000)');

    const manualGroup = grouped.findBy('groupId', contributions.findBy('id', 10).groupId);
    assert.ok(manualGroup, 'manual (no-url) group exists');
    assert.ok(manualGroup.isGrouped, 'manual group is flagged as grouped');
    assert.deepEqual(manualGroup.contributorIds, [2, 3], 'manual group lists both contributor ids');
    assert.equal(manualGroup.totalAmount, 3000, 'manual group sums amounts (1500 + 1500)');
  });

  test('#contributionsGrouped treats contributions without enough fields as singletons', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);

    const grouped = service.contributionsGrouped;
    const singletons = grouped.filterBy('isGrouped', false);

    // 5 singletons: ids 2, 4, 5, 6, 9 (each has unique description/date/amount/kind)
    assert.equal(singletons.length, 5, 'one singleton group per non-grouped contribution');
    singletons.forEach(g => {
      assert.equal(g.items.length, 1, 'singleton group has exactly one item');
    });
  });

  test('#siblingContributions returns co-contributor contributions for the same url', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);

    const c1 = contributions.findBy('id', 1);
    const siblings = service.siblingContributions(c1);
    assert.equal(siblings.length, 1, 'contribution 1 has one sibling');
    assert.equal(siblings[0].id, 3, 'the sibling is contribution 3');
  });

  test('#siblingContributions returns empty for contributions without siblings', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);

    const c2 = contributions.findBy('id', 2);
    assert.deepEqual(service.siblingContributions(c2), [], 'no siblings for unique contribution');
  });

  test('#siblingContributions returns empty for null contribution', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);
    service.set('contributions', contributions);

    assert.deepEqual(service.siblingContributions(null), [], 'no siblings for null');
  });

  test('#kreditsByContributor ignores unconfirmed contributions for contributors that are not loaded', function(assert) {
    let service = this.owner.lookup('service:kredits');
    service.set('contributors', contributors);

    // Contribution referencing a contributor that is not in the contributors
    // collection (e.g. its IPFS profile failed to deserialize). The dashboard
    // must not throw when computing the toplist.
    const orphanAttrs = { id: 99, contributorId: 999, confirmedAt: 2000, claimed: false, vetoed: false, amount: 7000, kind: 'dev' };
    const orphan = ContributionModel.create(processContributionData(orphanAttrs));
    orphan.set('contributor', undefined);

    service.set('contributions', [...contributions, orphan]);
    service.set('currentBlock', 1023);

    let kreditsByContributor;
    try {
      kreditsByContributor = service.kreditsByContributor;
    } catch (e) {
      assert.ok(false, `did not expect kreditsByContributor to throw: ${e.message}`);
      return;
    }

    assert.ok(kreditsByContributor, 'computes without throwing');
    assert.notOk(kreditsByContributor.findBy('contributor', undefined),
      'no entry for the missing contributor');
    assert.notOk(kreditsByContributor.find(k => k.contributor && k.contributor.id === 999),
      'orphan contributor id is absent from the toplist');
  });
});