extends SceneTree
const Clock = preload("res://world/owniverse/simulation_time.gd")
var checks: int = 0
var failures: int = 0

func _initialize() -> void:
    call_deferred("run")

func check(condition: bool, message: String) -> void:
    checks += 1
    if not condition:
        failures += 1
        push_error(message)

func fixture():
    var world = load("res://world/owniverse/owniverse.gd").new()
    var global: Node = root.get_node("Global")
    for id in global.OwniverseEntities:
        var entity = load("res://world/owniverse/owniverse_entity.gd").new(global.OwniverseEntities[id])
        world.catalog.entities[id] = entity
        world.state.amount[id] = 0.0
        world.state.stats.total_amount[id] = 0.0
        if entity.group_as != "":
            world.state.amount[entity.group_as] = 0.0
            world.state.stats.total_amount[entity.group_as] = 0.0
    world.catalog.entities["N"].life_product = {}
    world.catalog.entities["N"].product_per_year_type = "H"
    world.catalog.entities["N"].product_per_year_amount = 10.0
    world.catalog.entities["N"].auto = 0.0
    world.state.amount.N = 1.0
    return world

func dispose(world) -> void:
    for entity in world.catalog.entities.values():
        entity.free()
    world.free()

func run() -> void:
    var world = fixture()
    world.state.amount.N = 0.0
    world.state.amount.HP = 40000.0
    world.evolution.initialize_life_batches()
    check(world.state.batches.HP.size() == 1, "Old HP receives life cohort")
    check(world.state.batches.HP[0].start_year == 5e6, "HP uses source span")
    var before: Dictionary = world.state.duplicate(true)
    world.evolution.initialize_life_batches()
    check(world.state == before, "Initialization is idempotent")
    world.evolution.evolve_batches(world.state, 5e6 + 5e6 / 40.0)
    check(world.state.amount.EON1 == 10.0, "HP abiogenesis follows source probability")
    check(world.state.amount.RP == 100.0, "HP degradation produces RP")
    check(world.state.amount.HP == 39890.0, "Unchanged planets retry, not disappear")
    check(world.state.stats.total_amount.HP == 0.0, "Retry does not inflate creation statistics")
    check(world.state.batches.HP.size() > 0, "Survivors get next attempt")
    var physical: Dictionary = world.ledger.physical_amounts(world.state)
    check(physical.HP + physical.EON1 + physical.RP == 40000.0, "Life conserves planets")
    check(root.get_node("SaveManager").validate_data({"format_version": 2, "app_version": "", "ui": {"current_page": 0}, "state": world.state}) == "", "Life save validates")
    var restored = fixture()
    restored.state = bytes_to_var(var_to_bytes(world.state))
    world.evolution.evolve_batches(world.state, 11e6)
    restored.evolution.evolve_batches(restored.state, 11e6)
    check(world.state == restored.state, "Life continuation preserves cohorts and carries")
    dispose(restored)
    dispose(world)

    world = fixture()
    world.state.amount.RD = 1.0
    world.state.binds.RD = {"EON5": 40000.0}
    world.evolution.initialize_life_batches()
    world.evolution.evolve_batches(world.state, 5e5 + 5e5 / 40.0)
    check(world.state.binds.RD["C0.0"] == 10.0, "Intelligence emerges at the same host star")
    check(world.state.amount["C0.0"] == 0.0, "Life transition keeps planet bound")
    check(world.state.batches.has("C0.0"), "New C0.0 starts civilization evolution")
    dispose(world)

    world = fixture()
    var progress: float = 0.0
    var degraded: float = 0.0
    var valid_outcomes: bool = true
    for i in 4001:
        var products: Dictionary = world.life.life_products(world.state, world.catalog.entities.HP, 1.0)
        var total: float = 0.0
        for value in products.values():
            total += value
            valid_outcomes = valid_outcomes and value >= 0.0 and value == floorf(value)
        valid_outcomes = valid_outcomes and total == 1.0
        progress += products.get("EON1", 0.0)
        degraded += products.get("RP", 0.0)
    check(valid_outcomes, "Every single-planet attempt has whole outcomes and conserves population")
    check(progress == 1.0 and degraded == 10.0, "Rare outcomes accumulate deterministically")
    dispose(world)

    world = fixture()
    world.state.time = {"datetime": 123.4, "year": 123.4}
    world.state.binds.RD = {"HP": 2.0}
    world.evolution.initialize_life_batches()
    check(world.state.batches.HP[0].created_from == 123.4, "Old bound worlds begin life at load time")
    world.stellar.destroy_planets(world.state, "RD", 1.0, 1)
    world.evolution.evolve_batches(world.state, 1e7)
    check(world.ledger.physical_amounts(world.state).HP == 0.0 and world.state.binds.RD.RP == 2.0, "Destroyed life does not resurrect from cohort")
    dispose(world)
    world = fixture()
    world.state.time = {"datetime": 123.4, "year": 123.4}
    world.state.amount["C0.0"] = 40000.0
    world.evolution.initialize_life_batches()
    check(world.state.batches["C0.0"][0].created_from == 123.4, "Civilization cohorts begin at the current time")
    before = world.state.duplicate(true)
    world.evolution.initialize_life_batches()
    check(world.state == before, "Life batch initialization is idempotent")
    world.evolution.evolve_batches(world.state, 2173.4)
    check(world.state.amount["C0.1"] == 700.0 and world.state.amount.EON5 == 1000.0, "C0.0 progresses and degrades by Unity rates")
    check(world.state.amount["C0.0"] == 38300.0, "C0.0 remainder stays alive")
    dispose(world)
    world = fixture()
    world.state.amount.RD = 1.0
    world.state.binds.RD = {"C0.1": 40000.0}
    world.evolution.initialize_life_batches()
    world.evolution.evolve_batches(world.state, 2050.0)
    check(world.state.binds.RD["C0.2"] == 700.0, "C0.1 reaches ethical civilization without losing host")
    check(world.state.binds.RD["C0.0"] == 1000.0, "C0.1 degradation follows Unity")
    check(root.get_node("SaveManager").validate_data({"format_version": 2, "app_version": "", "ui": {"current_page": 0}, "state": world.state}) == "", "Extended life save validates")
    dispose(world)
    print("Life: %d checks, %d failures" % [checks, failures])
    quit(0 if failures == 0 else 1)