import {
  proposal_merge,
} from './proposal.js';


// tile updates

test("proposals changing different tiles don't conflict", () => {
  const a = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable' }],
  };
  const b = {
    lattice_changes: [{ x: 4, y: 4, from: 'empty', to: 'flag' }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});


test("proposals changing the same tile to different states conflict", () => {
  const a = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable' }],
  };
  const b = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'flag' }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


test("proposals changing the same tile to the same state merge to a single proposal", () => {
  const a = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable' }],
  };
  const b = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable' }],
  };

  expect(proposal_merge([a], b)).toEqual([a]);
});


test("proposals with identical tile updates but incompatible tile flags conflict", () => {
  const a = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable', flags: { v: 'a' } }],
  };
  const b = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable', flags: { v: 'b' } }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


test("proposals with identical tile updates but compatible tile flags do not conflict", () => {
  const a = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable', flags: { v: 'a', r: 'd' } }],
  };
  const b = {
    lattice_changes: [{ x: 4, y: 3, from: 'empty', to: 'mutable', flags: { v: 'a', u: 'b' } }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});




test("proposals moving two agents to the same tile conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', x: 4, y: 3 }],
  };
  const b = {
    agent_changes: [{ agent_id: 'bbb', x: 4, y: 3 }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


// agent updates
test("proposals moving two agents to different tiles do not conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', x: 4, y: 3 }],
  };
  const b = {
    agent_changes: [{ agent_id: 'bbb', x: 3, y: 3 }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});


test("proposals moving the same agent to different tiles conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', x: 4, y: 3 }],
  };
  const b = {
    agent_changes: [{ agent_id: 'aaa', x: 3, y: 3 }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


test("proposals moving the same agent to the same tile merge", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', x: 4, y: 3 }],
  };
  const b = {
    agent_changes: [{ agent_id: 'aaa', x: 4, y: 3 }],
  };

  expect(proposal_merge([a], b)).toEqual([a]);
});


test("proposals setting flags on different agents do not conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { frozen: false } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'bbb', flags: { frozen: false } }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});


test("setting the same agent to compatible flags does not conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { frozen: false } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'aaa', flags: { crumpet: 'hi' } }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});


test("setting the same agent to compatible object flags does not conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 0] } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 0], hi: 4 } }],
  };

  expect(proposal_merge([a], b)).toEqual([a, b]);
});


test("setting the same agent to incompatible flags does conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { frozen: false } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'aaa', flags: { frozen: true, crumpet: 'hi' } }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


test("setting the same agent to incompatible object flags does conflict", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 0] } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 1], hi: 4 } }],
  };

  expect(proposal_merge([a], b)).toEqual([]);
});


test("setting the same agent to identical flags merges", () => {
  const a = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 0] } }],
  };

  const b = {
    agent_changes: [{ agent_id: 'aaa', flags: { emit: [0, 1, 1, 0] } }],
  };

  expect(proposal_merge([a], b)).toEqual([a]);
});