from dataclasses import replace

import pytest

from core.config import GameConfig
from core.game import (
    PROPOSAL_STATUS_APPROVED,
    PROPOSAL_STATUS_REJECTED,
    PROPOSAL_STATUS_REJECTED_INVALID,
    NationGame,
)
from schemas.actions import ActionType, VoteChoice
from schemas.phases import Phase


DEPARTMENTS = ("Social", "Agriculture", "Health", "Education", "Defense", "Commerce")


def make_game(seed: int = 7, **config_overrides) -> NationGame:
    config = (
        replace(GameConfig.from_json(), **config_overrides)
        if config_overrides
        else GameConfig.from_json()
    )
    game = NationGame(config=config, seed=seed)
    game.event_engine._distribution = {"no_event": 1.0}
    game.reset()
    return game


def debate(agent_id: str = "Health") -> dict:
    return {
        "type": ActionType.DEBATE,
        "agent_id": agent_id,
        "message": "Public priority signal",
    }


def proposal(department: str, amount: float = 10.0) -> dict:
    """Discretionary request (≥ 0) above the auto-funded critical floor."""
    return {
        "type": ActionType.PROPOSE_BUDGET,
        "agent_id": department,
        "department": department,
        "amount": amount,
        "justification": "Fund expected demand",
    }


def vote(agent_id: str, proposal_id: str, choice: VoteChoice = VoteChoice.YES) -> dict:
    return {
        "type": ActionType.VOTE,
        "agent_id": agent_id,
        "proposal_id": proposal_id,
        "vote": choice,
    }


def every_eligible_vote(game: NationGame) -> list[dict]:
    """One YES vote from each non-proposer, for every pending proposal (full parliament)."""
    return [
        vote(department, p.proposal_id, VoteChoice.YES)
        for p in game.proposals
        for department in DEPARTMENTS
        if department != p.department
    ]


def every_eligible_no_on_target_else_yes(
    game: NationGame, target_department: str
) -> list[dict]:
    """NO on ``target_department``'s proposal; YES on all other proposals (from each eligible voter)."""
    return [
        vote(
            department,
            p.proposal_id,
            VoteChoice.NO if p.department == target_department else VoteChoice.YES,
        )
        for p in game.proposals
        for department in DEPARTMENTS
        if department != p.department
    ]


def advance_to_phase(game: NationGame, phase: Phase) -> None:
    while game.phase < phase and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()


def submit_safe_proposals(game: NationGame) -> None:
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(department, amount=10.0) for department in DEPARTMENTS])


def approve_all_pending_proposals(game: NationGame) -> None:
    advance_to_phase(game, Phase.VOTING)
    actions = []
    for item in game.proposals:
        for department in DEPARTMENTS:
            if department != item.department:
                actions.append(vote(department, item.proposal_id))
    game.step(actions)


def run_phase_loop_round(game: NationGame) -> None:
    game.step()
    submit_safe_proposals(game)
    approve_all_pending_proposals(game)
    while game.phase != Phase.EVENT_REVELATION and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()


def test_reset_creates_round_1_phase_1_state() -> None:
    game = make_game()

    state = game.state()

    assert state["round"] == 1
    assert state["phase"] == Phase.EVENT_REVELATION
    assert state["treasury"] == 1000


def test_phase_transitions_follow_1_through_9() -> None:
    game = make_game()
    seen = [game.phase]

    game.step()
    seen.append(game.phase)
    game.force_advance_phase()
    seen.append(game.phase)
    game.step([proposal(department) for department in DEPARTMENTS])
    seen.append(game.phase)
    approve_all_pending_proposals(game)
    seen.append(game.phase)
    while game.phase != Phase.EVENT_REVELATION and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()
        seen.append(game.phase)

    assert seen[:9] == [Phase(index) for index in range(1, 10)]
    assert game.round == 2


def test_debate_action_only_accepted_in_phase_2() -> None:
    game = make_game()

    phase_1_result = game.step(debate())
    phase_2_result = game.step(debate())

    assert phase_1_result.info["ignored_actions"][0]["reason"] == "wrong_phase"
    assert phase_2_result.info["accepted_actions"][0]["type"] == ActionType.DEBATE
    assert len(game.debate_messages) == 1


def test_proposal_action_only_accepted_in_phase_3() -> None:
    game = make_game()

    wrong_phase_result = game.step(proposal("Health"))
    advance_to_phase(game, Phase.PROPOSAL)
    accepted_result = game.step(proposal("Health"))

    assert wrong_phase_result.info["ignored_actions"][0]["reason"] == "wrong_phase"
    assert (
        accepted_result.info["accepted_actions"][0]["type"] == ActionType.PROPOSE_BUDGET
    )


def test_vote_action_only_accepted_in_phase_4() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    wrong_phase_result = game.step(vote("Health", "missing"))

    game = make_game()
    submit_safe_proposals(game)
    proposal_id = next(
        item.proposal_id for item in game.proposals if item.department != "Health"
    )

    accepted_result = game.step(vote("Health", proposal_id))

    assert wrong_phase_result.info["ignored_actions"][0]["reason"] == "wrong_phase"
    assert accepted_result.info["accepted_actions"][0]["type"] == ActionType.VOTE


def test_wrong_phase_action_is_ignored() -> None:
    game = make_game()

    result = game.step(
        {
            "type": ActionType.VOTE,
            "agent_id": "Health",
            "proposal_id": "missing",
            "vote": VoteChoice.YES,
        }
    )

    assert result.info["ignored_actions"][0]["reason"] == "wrong_phase"
    assert game.votes == []


def test_invalid_proposal_over_treasury_is_rejected() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)

    rem = max(0.0, game.treasury.balance - game._total_critical_funding())
    result = game.step(proposal("Health", amount=rem + 1.0))

    assert result.info["rejected_actions"][0]["reason"] == "exceeds_treasury"
    assert game.proposals[0].status == PROPOSAL_STATUS_REJECTED_INVALID


def test_duplicate_proposal_is_ignored() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)

    result = game.step(
        [proposal("Health", amount=20.0), proposal("Health", amount=30.0)]
    )

    assert len(game.proposals) == 1
    assert result.info["ignored_actions"][0]["reason"] == "duplicate_proposal"


def test_agents_cannot_propose_for_another_department() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    action = proposal("Health", amount=20.0)
    action["agent_id"] = "Defense"

    result = game.step(action)

    assert result.info["rejected_actions"][0]["reason"] == "wrong_department"
    assert game.proposals[0].status == PROPOSAL_STATUS_REJECTED_INVALID


def test_self_vote_is_rejected() -> None:
    game = make_game()
    submit_safe_proposals(game)
    health_proposal = next(
        item for item in game.proposals if item.department == "Health"
    )

    result = game.step(vote("Health", health_proposal.proposal_id))

    assert result.info["rejected_actions"][0]["reason"] == "self_vote"
    assert health_proposal.votes == {}


def test_tie_vote_rejects_proposal() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    game.step(proposal("Health", amount=90.0))
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS if d != "Health"])
    health_proposal = next(p for p in game.proposals if p.department == "Health")
    custom = {
        "Defense": VoteChoice.YES,
        "Commerce": VoteChoice.NO,
        "Social": VoteChoice.ABSTAIN,
        "Agriculture": VoteChoice.YES,
        "Education": VoteChoice.NO,
    }
    actions: list[dict] = []
    for p in game.proposals:
        for d in DEPARTMENTS:
            if d == p.department:
                continue
            if p.proposal_id == health_proposal.proposal_id:
                actions.append(vote(d, p.proposal_id, custom.get(d, VoteChoice.YES)))
            else:
                actions.append(vote(d, p.proposal_id, VoteChoice.YES))
    game.step(actions)
    game.step()
    assert health_proposal.status == PROPOSAL_STATUS_REJECTED
    assert not game.done


def test_approved_proposal_debits_treasury() -> None:
    game = make_game()
    submit_safe_proposals(game)
    approve_all_pending_proposals(game)

    before = game.treasury.balance
    total_c = game._total_critical_funding()
    approved = sum(p.amount for p in game.proposals)
    game.step()

    assert all(p.status == PROPOSAL_STATUS_APPROVED for p in game.proposals)
    assert game.treasury.balance == pytest.approx(before - total_c - approved)


def test_rejected_proposal_keeps_only_critical() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    game.step(proposal("Health", amount=90.0))
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS if d != "Health"])
    health_proposal = game.proposals[0]
    game.step(every_eligible_no_on_target_else_yes(game, "Health"))

    while game.phase != Phase.CONSUMPTION_AND_EVENT_IMPACT and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()

    assert health_proposal.status == PROPOSAL_STATUS_REJECTED
    crit = float(game.sectors["Health"].critical)
    assert game.sectors["Health"].allocation == pytest.approx(crit)


def test_zero_discretionary_proposal_is_accepted() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)

    result = game.step(proposal("Health", amount=0.0))

    assert result.info["accepted_actions"][0]["type"] == ActionType.PROPOSE_BUDGET
    assert any(p.department == "Health" and p.amount == 0.0 for p in game.proposals)


def test_sequential_treasury_depletion_rejects_later_proposal() -> None:
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal("Social", amount=400.0), proposal("Health", amount=500.0)])
    game.step(
        [proposal(d, amount=0.0) for d in DEPARTMENTS if d not in {"Social", "Health"}]
    )
    social_proposal = next(p for p in game.proposals if p.department == "Social")
    health_proposal = next(p for p in game.proposals if p.department == "Health")

    game.step(every_eligible_vote(game))
    game.step()

    assert social_proposal.status == PROPOSAL_STATUS_APPROVED
    assert health_proposal.status == PROPOSAL_STATUS_REJECTED
    assert health_proposal.rejection_reason == "exceeds_remaining_treasury"


def test_dictator_direct_runs_economy_round_without_immediate_termination() -> None:
    game = make_game()
    allocations = dict(game.config.SECTOR_BASELINES)
    allocations["Defense"] = 30

    result = game.step(allocations)

    assert not result.done
    assert result.termination_reason != "CRITICAL_FAILURE"
    assert result.total_revenue > 0.0


def test_revenue_succeeds_after_direct_allocation() -> None:
    game = make_game()
    safe = {
        department: baseline * 1.3
        for department, baseline in game.config.SECTOR_BASELINES.items()
    }
    first = game.step(safe)
    assert first.total_revenue > 0


def test_bankruptcy_terminates_episode() -> None:
    game = make_game()
    game.treasury.balance = 1
    critical_allocations = {
        department: baseline * game.config.CRITICAL_RATIO
        for department, baseline in game.config.SECTOR_BASELINES.items()
    }

    result = game.step(critical_allocations)

    assert result.done
    assert result.termination_reason == "BANKRUPTCY"


def test_max_rounds_terminates_episode() -> None:
    game = make_game(MAX_ROUNDS=1)

    run_phase_loop_round(game)

    assert game.done
    assert game.termination_reason == "MAX_ROUNDS"


def test_auto_critical_is_funded_before_voted_proposals() -> None:
    """Auto-critical is applied BEFORE approved discretionary proposals are added."""
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(department, amount=20.0) for department in DEPARTMENTS])
    approve_all_pending_proposals(game)
    game.step()  # Phase 5: Budget Execution

    total_c = game._total_critical_funding()
    # Every department gets critical funded automatically
    for dept in DEPARTMENTS:
        sector = game.sectors[dept]
        assert sector.allocation >= float(sector.critical(game.population.value)), (
            f"{dept} allocation {sector.allocation} < critical {sector.critical(game.population.value)}"
        )

    # Treasury was debited for total critical first
    # Then debited for approved discretionary on top
    approved_disc = sum(
        p.amount for p in game.proposals if p.status == PROPOSAL_STATUS_APPROVED
    )
    expected_allocation = total_c + approved_disc
    assert game.last_total_allocation == pytest.approx(expected_allocation)


def test_discretionary_zero_proposal_is_valid() -> None:
    """A proposal of amount=0 means 'I only need auto-critical, no extra'."""
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    # All departments propose 0 discretionary
    game.step([proposal(department, amount=0.0) for department in DEPARTMENTS])
    approve_all_pending_proposals(game)
    game.step()  # Phase 5

    # All proposals accepted (0 is valid)
    assert all(p.status == PROPOSAL_STATUS_APPROVED for p in game.proposals)
    # Every department still gets auto-critical
    total_c = game._total_critical_funding()
    assert game.last_total_allocation == pytest.approx(total_c)


def test_rejected_proposal_allocates_critical_not_zero() -> None:
    """Rejection means department gets ONLY auto-critical (not 0)."""
    game = make_game()
    advance_to_phase(game, Phase.PROPOSAL)
    # Health proposes 90, everyone else 0
    game.step(proposal("Health", amount=90.0))
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS if d != "Health"])
    # NO vote on Health's proposal
    health_proposal = next(p for p in game.proposals if p.department == "Health")
    game.step(every_eligible_no_on_target_else_yes(game, "Health"))

    while game.phase != Phase.CONSUMPTION_AND_EVENT_IMPACT and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()

    assert health_proposal.status == PROPOSAL_STATUS_REJECTED
    crit = float(game.sectors["Health"].critical(game.population.value))
    # Health gets auto-critical (not 0) even though proposal was rejected
    assert game.sectors["Health"].allocation == pytest.approx(crit)


def test_shutdown_triggered_by_zero_discretionary_two_rounds() -> None:
    """Shutdown = sum(Discretionary_d) = 0 for 2 consecutive rounds."""
    game = make_game()
    run_phase_loop_round(game)  # Round 1: all propose and approve

    # Round 2: all propose 0 discretionary (all get auto-critical only)
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS])
    approve_all_pending_proposals(game)
<<<<<<< Updated upstream
    while game.phase != Phase.EVENT_REVELATION and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()
=======
    game.step()  # Phase 5: first round with zero discretionary
>>>>>>> Stashed changes

    assert game.shutdown_counter == 1
    assert not game.done

    # Round 3: again all propose 0
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS])
    approve_all_pending_proposals(game)
<<<<<<< Updated upstream
    while game.phase != Phase.EVENT_REVELATION and not game.done:
        if game.phase == Phase.DEBATE:
            game.force_advance_phase()
        else:
            game.step()
=======
    game.step()  # Phase 5: second consecutive zero discretionary
>>>>>>> Stashed changes

    assert game.shutdown_counter == 2
    assert game.done
    assert game.termination_reason == "SHUTDOWN"


def test_bankruptcy_when_treasury_less_than_total_critical() -> None:
    """If treasury < sum(Critical_d) at budget execution, BANKRUPTCY triggers."""
    game = make_game()
    # Set treasury to be less than total critical
    game.treasury.balance = 50.0  # Total critical is ~190
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS])
    approve_all_pending_proposals(game)

    result = game.step()

    assert result.done
    assert result.termination_reason == "BANKRUPTCY"


def test_no_critical_failure_after_revenue_round() -> None:
    """Auto-critical ensures critical failure is impossible. Treasury checks apply instead."""
    game = make_game()
    # Simulate under-funding scenario: treasury too low for all critical
    game.treasury.balance = 100.0  # Below ~190 total critical
    advance_to_phase(game, Phase.PROPOSAL)
    game.step([proposal(d, amount=0.0) for d in DEPARTMENTS])
    approve_all_pending_proposals(game)

    result = game.step()

    # Should be BANKRUPTCY (treasury < critical), NOT CRITICAL_FAILURE
    assert result.done
    assert result.termination_reason == "BANKRUPTCY"


def test_direct_allocation_applies_auto_critical_first() -> None:
    """Direct allocation shortcut auto-funds critical, then applies input as discretionary."""
    game = make_game()
<<<<<<< Updated upstream
    # Input mapping is legacy total desired allocation per department; engine splits
    # into critical + discretionary after auto-funding critical.
=======
    # Direct allocation input: {Dept: total_requested}
    # Should be interpreted as: {Dept: discretionary_above_critical}
>>>>>>> Stashed changes
    safe = {
        dept: baseline * 1.3 for dept, baseline in game.config.SECTOR_BASELINES.items()
    }
    result = game.step(safe)

    assert not result.done
<<<<<<< Updated upstream
    pop = int(result.observation["population"])
    for dept in DEPARTMENTS:
        alloc = result.observation["sectors"][dept]["allocation"]
        crit = game.sectors[dept].critical(pop)
        assert alloc >= float(crit)
=======
    # Verify auto-critical was applied
    total_c = game._total_critical_funding()
    # Verify each department got at least critical
    for dept in DEPARTMENTS:
        sector = game.sectors[dept]
        assert sector.allocation >= float(sector.critical(game.population.value))
>>>>>>> Stashed changes


def test_seeded_reset_is_deterministic() -> None:
    first = NationGame(seed=123).reset(seed=123)
    second = NationGame(seed=123).reset(seed=123)

    assert first["event_ledger"] == second["event_ledger"]
    assert first["sectors"] == second["sectors"]