defmodule VavPipelineTest do
  use ExUnit.Case, async: false

  # ============================================================
  # L1 Reader Tests
  # ============================================================
  describe "L1Reader" do
    test "reads Bereishit 1:1 from L1" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      assert verse.ref == "Bereishit 1:1"
      assert verse.book == "bereishit"
      assert verse.chapter == 1
      assert verse.verse == 1
      assert length(verse.words) == 7
    end

    test "first word of Bereishit 1:1 is bereishit" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      first = hd(verse.words)
      assert first.consonants == "בראשית"
      assert first.shoresh == "ראש"
      assert first.prefix == "ב"
      assert "tipcha" in first.teamim
    end

    test "word without shoresh (particle את)" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      # Word 4 is את (et) — accusative particle, no shoresh
      et = Enum.at(verse.words, 3)
      assert et.consonants == "את"
      assert et.shoresh == nil
    end

    test "extracts teamim marks with roles" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      marks = VavPipeline.L1Reader.extract_teamim(verse)

      # 7 words, each with 1 taam = 7 marks
      assert length(marks) == 7

      # Etnachta on word 3 (index 2) should be melekh
      etnachta = Enum.find(marks, fn m -> m.taam == "etnachta" end)
      assert etnachta != nil
      assert etnachta.word_index == 2
      assert etnachta.role == "melekh"

      # Munach on word 2 (index 1) should be mesharet
      munach = Enum.find(marks, fn m -> m.taam == "munach" end)
      assert munach != nil
      assert munach.role == "mesharet"
    end

    test "extracts roots with gematria" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      roots = VavPipeline.L1Reader.extract_roots(verse)

      # ברא should be present with gematria 203
      assert Map.has_key?(roots, "ברא")
      assert roots["ברא"] == 203

      # ראש should be present with gematria 501
      assert Map.has_key?(roots, "ראש")
      assert roots["ראש"] == 501

      # Particles (את) should not produce root entries
      refute Map.has_key?(roots, nil)
    end

    test "returns error for non-existent verse" do
      {:error, msg} = VavPipeline.L1Reader.read_verse("bereishit", 999, 999)
      assert msg =~ "INVALID_SCOPE"
    end

    test "meteg_siluq on last word is melekh" do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)
      marks = VavPipeline.L1Reader.extract_teamim(verse)

      # Last word (הארץ, index 6) has meteg_siluq
      siluq = Enum.find(marks, fn m -> m.taam == "meteg_siluq" end)
      assert siluq != nil
      assert siluq.word_index == 6
      assert siluq.role == "melekh"
    end

    test "verify L1 integrity" do
      assert :ok == VavPipeline.L1Reader.verify_integrity()
    end
  end

  # ============================================================
  # Cloud Tests
  # ============================================================
  describe "Cloud" do
    test "weekday is camped" do
      # Wednesday at noon UTC — not Shabbat
      {:ok, wednesday, _} = DateTime.from_iso8601("2026-02-25T12:00:00Z")
      {:ok, state} = VavPipeline.Cloud.check_at(wednesday)
      assert state == :camped
    end

    test "Friday evening is Shabbat" do
      {:ok, friday_evening, _} = DateTime.from_iso8601("2026-02-27T19:00:00Z")
      assert VavPipeline.Cloud.shabbat?(friday_evening) == true
    end

    test "Saturday morning is Shabbat" do
      {:ok, saturday_morning, _} = DateTime.from_iso8601("2026-02-28T10:00:00Z")
      assert VavPipeline.Cloud.shabbat?(saturday_morning) == true
    end

    test "Saturday evening (after 18:00) is not Shabbat" do
      {:ok, saturday_evening, _} = DateTime.from_iso8601("2026-02-28T19:00:00Z")
      assert VavPipeline.Cloud.shabbat?(saturday_evening) == false
    end

    test "Friday afternoon is not Shabbat" do
      {:ok, friday_afternoon, _} = DateTime.from_iso8601("2026-02-27T14:00:00Z")
      assert VavPipeline.Cloud.shabbat?(friday_afternoon) == false
    end

    test "Shabbat triggers major transition" do
      {:ok, shabbat, _} = DateTime.from_iso8601("2026-02-28T10:00:00Z")
      {:ok, state} = VavPipeline.Cloud.check_at(shabbat)
      assert {:major_transition, :shabbat_rest, _} = state
    end

    test "shmitah year check" do
      # 2021-2022 was shmitah (Hebrew 5782)
      {:ok, shmitah, _} = DateTime.from_iso8601("2022-01-15T12:00:00Z")
      assert VavPipeline.Cloud.shmitah_year?(shmitah) == true

      # 2026 is not shmitah
      {:ok, non_shmitah, _} = DateTime.from_iso8601("2026-06-15T12:00:00Z")
      assert VavPipeline.Cloud.shmitah_year?(non_shmitah) == false
    end

    test "Pesach is a festival" do
      # 15 Nisan 5787 = 2 April 2026
      {:ok, pesach, _} = DateTime.from_iso8601("2026-04-02T12:00:00Z")
      assert VavPipeline.Cloud.festival?(pesach) == true
    end

    test "Rosh Hashanah is a festival" do
      # 1 Tishrei 5787 = 12 September 2026
      {:ok, rosh_hashanah, _} = DateTime.from_iso8601("2026-09-12T12:00:00Z")
      assert VavPipeline.Cloud.festival?(rosh_hashanah) == true
    end

    test "Yom Kippur is a festival" do
      # 10 Tishrei 5787 = 21 September 2026
      {:ok, yom_kippur, _} = DateTime.from_iso8601("2026-09-21T12:00:00Z")
      assert VavPipeline.Cloud.festival?(yom_kippur) == true
    end

    test "regular weekday is not a festival" do
      {:ok, tuesday, _} = DateTime.from_iso8601("2026-03-10T12:00:00Z")
      assert VavPipeline.Cloud.festival?(tuesday) == false
    end

    test "festival triggers major transition" do
      {:ok, pesach, _} = DateTime.from_iso8601("2026-04-02T12:00:00Z")
      {:ok, state} = VavPipeline.Cloud.check_at(pesach)
      assert {:major_transition, :festival_rest, %{festival: :pesach}} = state
    end
  end

  # ============================================================
  # Manna Tests
  # ============================================================
  describe "Manna" do
    test "no provision file returns :no_provision" do
      {:ok, result} = VavPipeline.Manna.check()
      assert result == :no_provision
    end

    test "double portion day is Friday" do
      {:ok, friday, _} = DateTime.from_iso8601("2026-02-27T12:00:00Z")
      assert VavPipeline.Manna.double_portion_day?(friday) == true

      {:ok, wednesday, _} = DateTime.from_iso8601("2026-02-25T12:00:00Z")
      assert VavPipeline.Manna.double_portion_day?(wednesday) == false
    end

    test "anti-hoarding enforcement" do
      assert :ok == VavPipeline.Manna.enforce_anti_hoarding()
    end
  end

  # ============================================================
  # Halt Conditions Tests
  # ============================================================
  describe "HaltConditions" do
    test "clear when no violations" do
      results = [%{shoresh: "ברא", action: :read}]
      assert :clear == VavPipeline.HaltConditions.check_all(results)
    end

    test "avodah zarah — non-Torah authority" do
      results = [%{authority_source: :claude_model}]
      assert {:halt, :avodah_zarah, _} = VavPipeline.HaltConditions.check_avodah_zarah(results)
    end

    test "avodah zarah — Torah authority passes" do
      results = [%{authority_source: :torah}]
      assert :clear == VavPipeline.HaltConditions.check_avodah_zarah(results)
    end

    test "avodah zarah — L1 source passes" do
      results = [%{authority_source: :l1}]
      assert :clear == VavPipeline.HaltConditions.check_avodah_zarah(results)
    end

    test "shfichut damim — destructive action" do
      results = [%{action: :delete}]
      assert {:halt, :shfichut_damim, _} = VavPipeline.HaltConditions.check_shfichut_damim(results)
    end

    test "shfichut damim — overwrite halts" do
      results = [%{action: :overwrite}]
      assert {:halt, :shfichut_damim, _} = VavPipeline.HaltConditions.check_shfichut_damim(results)
    end

    test "shfichut damim — read passes" do
      results = [%{action: :read}]
      assert :clear == VavPipeline.HaltConditions.check_shfichut_damim(results)
    end

    test "gilui arayot — boundary violation" do
      results = [%{boundary_violation: {:spec_interp_merge, "treated interpretation as specification"}}]
      assert {:halt, :gilui_arayot, _} = VavPipeline.HaltConditions.check_gilui_arayot(results)
    end

    test "gilui arayot — no violation passes" do
      results = [%{boundary_violation: nil}]
      assert :clear == VavPipeline.HaltConditions.check_gilui_arayot(results)
    end

    test "all three conditions checked — first halt wins" do
      results = [%{authority_source: :external_model, action: :delete, boundary_violation: true}]
      assert {:halt, :avodah_zarah, _} = VavPipeline.HaltConditions.check_all(results)
    end
  end

  # ============================================================
  # Specification Tests
  # ============================================================
  describe "Specification" do
    test "tov for grounded results" do
      results = [%{shoresh: "ברא"}, %{shoresh: "אלה"}]
      assert :tov == VavPipeline.Specification.evaluate(results, [])
    end

    test "lo_tov for empty results" do
      assert {:lo_tov, _} = VavPipeline.Specification.evaluate([], [])
    end

    test "teiku for ungrounded results" do
      results = [%{shoresh: nil}]
      assert :teiku == VavPipeline.Specification.evaluate(results, [])
    end
  end

  # ============================================================
  # Chatzotzrot Tests
  # ============================================================
  describe "Chatzotzrot" do
    test "breaking camp signal — tekiah_teruah (Architecture §3.12)" do
      signal = VavPipeline.Chatzotzrot.signal(:breaking_camp)
      assert signal.signal_type == :breaking_camp
      assert signal.pattern == :tekiah_teruah
      assert signal.details.urgency == :immediate
    end

    test "assembly_all signal — tekiah (Architecture §3.12)" do
      signal = VavPipeline.Chatzotzrot.signal(:assembly_all)
      assert signal.signal_type == :assembly_all
      assert signal.pattern == :tekiah
    end

    test "assembly_leaders signal — teruah (Architecture §3.12)" do
      signal = VavPipeline.Chatzotzrot.signal(:assembly_leaders)
      assert signal.signal_type == :assembly_leaders
      assert signal.pattern == :teruah
    end

    test "moadim signal — tekiah_tekiah (Architecture §3.12)" do
      signal = VavPipeline.Chatzotzrot.signal(:moadim)
      assert signal.pattern == :tekiah_tekiah
    end

    test "war signal — teruah_teruah (Architecture §3.12)" do
      signal = VavPipeline.Chatzotzrot.signal(:war)
      assert signal.pattern == :teruah_teruah
    end
  end

  # ============================================================
  # BereishitCycle Tests
  # ============================================================
  describe "BereishitCycle" do
    setup do
      {:ok, verse} = VavPipeline.L1Reader.read_verse("bereishit", 1, 1)

      context = %{
        verse: verse,
        teamim_marks: VavPipeline.L1Reader.extract_teamim(verse),
        ketiv_qere: [],
        root_gematria: VavPipeline.L1Reader.extract_roots(verse),
        smikhut: [],
        cloud_state: :camped,
        daily_provision: :no_provision,
        scope: %{book: "bereishit", chapter: 1, verse: 1},
        received_at: DateTime.utc_now()
      }

      input = %{
        source: "test",
        verse_scope: %{book: "bereishit", chapter: 1, verse: 1},
        content: "בראשית ברא אלהים את השמים ואת הארץ"
      }

      {:ok, context: context, input: input}
    end

    test "tohu decomposes input", %{context: context, input: input} do
      result = VavPipeline.BereishitCycle.tohu(input, context)
      assert result.raw == "בראשית ברא אלהים את השמים ואת הארץ"
      assert result.provenance == "test"
    end

    test "vayomer activates roots", %{context: context, input: input} do
      state = VavPipeline.BereishitCycle.tohu(input, context)
      result = VavPipeline.BereishitCycle.vayomer(state, context)

      assert result.stage == :vayomer
      assert length(result.roots_activated) > 0

      # ברא should be among activated roots
      bara = Enum.find(result.roots_activated, fn r -> r.shoresh == "ברא" end)
      assert bara != nil
      assert bara.gematria == 203
    end

    test "havdalah separates by te'amim", %{context: context, input: input} do
      result =
        input
        |> VavPipeline.BereishitCycle.tohu(context)
        |> VavPipeline.BereishitCycle.vayomer(context)
        |> VavPipeline.BereishitCycle.havdalah(context)

      assert result.stage == :havdalah
      assert is_list(result.separated_groups)
      assert length(result.separation_boundaries) > 0
    end

    test "kriah names groups", %{context: context, input: input} do
      result =
        input
        |> VavPipeline.BereishitCycle.tohu(context)
        |> VavPipeline.BereishitCycle.vayomer(context)
        |> VavPipeline.BereishitCycle.havdalah(context)
        |> VavPipeline.BereishitCycle.kriah(context)

      assert result.stage == :kriah
      assert is_list(result.named_results)

      Enum.each(result.named_results, fn group ->
        assert Map.has_key?(group, :name)
      end)
    end

    test "full cycle executes successfully", %{context: context, input: input} do
      result = VavPipeline.BereishitCycle.execute(input, context)
      assert elem(result, 0) in [:ok, :unresolved]
    end
  end

  # ============================================================
  # Shema Context Tests (integration — requires L1)
  # ============================================================
  describe "Shema" do
    test "receives context for Bereishit 1:1 on a weekday" do
      {:ok, wednesday, _} = DateTime.from_iso8601("2026-02-25T12:00:00Z")
      scope = %{book: "bereishit", chapter: 1, verse: 1}

      {:ok, context} = VavPipeline.Shema.receive_context_at(scope, wednesday)

      # Verse data
      assert context.verse.ref == "Bereishit 1:1"
      assert length(context.verse.words) == 7

      # Te'amim marks
      assert length(context.teamim_marks) == 7
      assert Enum.any?(context.teamim_marks, fn m -> m.taam == "etnachta" end)

      # Root gematria
      assert Map.has_key?(context.root_gematria, "ברא")

      # Cloud — weekday should be camped
      assert context.cloud_state == :camped

      # Scope preserved
      assert context.scope == scope
    end

    test "receives Shabbat cloud state on Saturday" do
      {:ok, shabbat, _} = DateTime.from_iso8601("2026-02-28T10:00:00Z")
      scope = %{book: "bereishit", chapter: 1, verse: 1}

      {:ok, context} = VavPipeline.Shema.receive_context_at(scope, shabbat)

      assert {:major_transition, :shabbat_rest, _} = context.cloud_state
    end

    test "returns error for invalid verse scope" do
      {:ok, wednesday, _} = DateTime.from_iso8601("2026-02-25T12:00:00Z")
      scope = %{book: "bereishit", chapter: 999, verse: 999}

      {:error, msg} = VavPipeline.Shema.receive_context_at(scope, wednesday)
      assert msg =~ "INVALID_SCOPE"
    end
  end

  # ============================================================
  # CycleLog Tests
  # ============================================================
  describe "CycleLog" do
    test "records a tov cycle" do
      record = VavPipeline.CycleLog.record({:ok, %{data: "test"}}, :voker)
      assert record.phase == :voker
      assert record.result == :tov
      assert record.cycle_id != nil
    end

    test "records rejection as lo_tov" do
      record = VavPipeline.CycleLog.record({:rejected, "reason"}, :erev)
      assert record.phase == :erev
      assert record.result == :lo_tov
    end
  end

  # ============================================================
  # ShabbatTimer Tests
  # ============================================================
  describe "ShabbatTimer" do
    test "timer is running and reports state" do
      state = VavPipeline.ShabbatTimer.state()
      assert is_map(state)
      assert Map.has_key?(state, :resting)
      assert is_boolean(state.resting)
    end

    test "resting? returns boolean" do
      assert is_boolean(VavPipeline.ShabbatTimer.resting?())
    end
  end
end