(module main)

(import std.vec_f64 (empty append len at singleton append2 append3 pair triple is_empty index_or first_or last_or index_option first_option last_option index_of_option last_index_of_option contains sum concat take starts_with without_prefix ends_with without_suffix drop reverse subvec insert_at insert_range replace_at replace_range remove_at remove_range))

(fn imported_empty_length () -> i32
  (len (empty)))

(fn imported_pair_index () -> f64
  (at (pair 40.0 41.0) 1))

(fn original_len_after_append () -> i32
  (let values (vec f64) (empty))
  (let more (vec f64) (append values 9.0))
  (len values))

(fn option_f64_is_some_value ((value (option f64)) (expected f64)) -> bool
  (if (is_some value)
    (= (unwrap_some value) expected)
    false))

(fn option_i32_is_some_value ((value (option i32)) (expected i32)) -> bool
  (if (is_some value)
    (= (unwrap_some value) expected)
    false))

(fn imported_builder_helpers_ok () -> bool
  (if (= (len (singleton 42.0)) 1)
    (if (= (len (append2 (empty) 10.0 20.0)) 2)
      (if (= (len (append3 (singleton 10.0) 20.0 30.0 40.0)) 4)
        (if (= (pair 5.0 6.0) (append2 (empty) 5.0 6.0))
          (= (triple 7.0 8.0 9.0) (append3 (empty) 7.0 8.0 9.0))
          false)
        false)
      false)
    false))

(fn imported_query_helpers_ok () -> bool
  (if (is_empty (empty))
    (if (= (first_or (empty) 9.0) 9.0)
      (if (= (first_or (pair 40.0 41.0) 9.0) 40.0)
        (if (= (last_or (triple 10.0 20.0 30.0) 9.0) 30.0)
          (if (= (index_or (pair 40.0 41.0) -1 7.0) 7.0)
            (if (= (index_or (pair 40.0 41.0) 9 7.0) 7.0)
              (= (index_or (pair 40.0 41.0) 1 7.0) 41.0)
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_option_query_helpers_ok () -> bool
  (if (is_none (first_option (empty)))
    (if (option_f64_is_some_value (first_option (pair 40.0 41.0)) 40.0)
      (if (is_none (last_option (empty)))
        (if (option_f64_is_some_value (last_option (triple 10.0 20.0 30.0)) 30.0)
          (if (is_none (index_option (pair 40.0 41.0) -1))
            (if (is_none (index_option (pair 40.0 41.0) 9))
              (if (option_f64_is_some_value (index_option (pair 40.0 41.0) 1) 41.0)
                (if (is_none (index_of_option (append3 (pair 10.0 20.0) 30.0 20.0 10.0) 99.0))
                  (if (option_i32_is_some_value (index_of_option (append3 (pair 10.0 20.0) 30.0 20.0 10.0) 20.0) 1)
                    (if (is_none (last_index_of_option (append3 (pair 10.0 20.0) 30.0 20.0 10.0) 99.0))
                      (option_i32_is_some_value (last_index_of_option (append3 (pair 10.0 20.0) 30.0 20.0 10.0) 20.0) 3)
                      false)
                    false)
                  false)
                false)
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_starts_with_helper_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let prefix (vec f64) (pair 10.0 20.0))
  (let longer_prefix (vec f64) (append2 values 60.0 70.0))
  (let mismatched_prefix (vec f64) (pair 20.0 30.0))
  (if (starts_with values (empty))
    (if (starts_with values prefix)
      (if (starts_with values values)
        (if (starts_with values longer_prefix)
          false
          (if (starts_with values mismatched_prefix)
            false
            (if (= values (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
              (= prefix (pair 10.0 20.0))
              false)))
        false)
      false)
    false))

(fn imported_ends_with_helper_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let suffix (vec f64) (pair 40.0 50.0))
  (let longer_suffix (vec f64) (append2 values 60.0 70.0))
  (let mismatched_suffix (vec f64) (pair 40.0 51.0))
  (if (ends_with values (empty))
    (if (ends_with values suffix)
      (if (ends_with values values)
        (if (ends_with values longer_suffix)
          false
          (if (ends_with values mismatched_suffix)
            false
            (if (= values (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
              (= suffix (pair 40.0 50.0))
              false)))
        false)
      false)
    false))

(fn imported_without_suffix_helper_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let suffix (vec f64) (pair 40.0 50.0))
  (let longer_suffix (vec f64) (append2 values 60.0 70.0))
  (let mismatched_suffix (vec f64) (pair 40.0 51.0))
  (if (= (without_suffix values (empty)) values)
    (if (= (without_suffix values values) (empty))
      (if (= (without_suffix values suffix) (triple 10.0 20.0 30.0))
        (if (= (without_suffix values longer_suffix) values)
          (if (= (without_suffix values mismatched_suffix) values)
            (if (= values (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
              (= suffix (pair 40.0 50.0))
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_without_prefix_helper_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let prefix (vec f64) (pair 10.0 20.0))
  (let longer_prefix (vec f64) (append2 values 60.0 70.0))
  (let mismatched_prefix (vec f64) (pair 10.0 21.0))
  (if (= (without_prefix values (empty)) values)
    (if (= (without_prefix values values) (empty))
      (if (= (without_prefix values prefix) (triple 30.0 40.0 50.0))
        (if (= (without_prefix values longer_prefix) values)
          (if (= (without_prefix values mismatched_prefix) values)
            (if (= values (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
              (= prefix (pair 10.0 20.0))
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_transform_helpers_ok () -> bool
  (if (= (concat (empty) (pair 7.0 8.0)) (pair 7.0 8.0))
    (if (= (concat (pair 1.0 2.0) (triple 3.0 4.0 5.0)) (append3 (pair 1.0 2.0) 3.0 4.0 5.0))
      (if (= (take (triple 10.0 20.0 30.0) -4) (empty))
        (if (= (take (triple 10.0 20.0 30.0) 2) (pair 10.0 20.0))
          (if (= (take (pair 10.0 20.0) 9) (pair 10.0 20.0))
            (if (= (drop (triple 10.0 20.0 30.0) -4) (triple 10.0 20.0 30.0))
              (if (= (drop (triple 10.0 20.0 30.0) 2) (singleton 30.0))
                (if (= (drop (pair 10.0 20.0) 9) (empty))
                  (if (= (reverse (empty)) (empty))
                    (= (reverse (append3 (pair 10.0 20.0) 30.0 40.0 50.0)) (append3 (pair 50.0 40.0) 30.0 20.0 10.0))
                    false)
                  false)
                false)
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_subvec_helper_ok () -> bool
  (let original (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (if (= (subvec original -1 2) (empty))
    (if (= (subvec original 3 3) (empty))
      (if (= (subvec original 9 10) (empty))
        (if (= (subvec original 2 99) (triple 30.0 40.0 50.0))
          (if (= (subvec original 1 4) (triple 20.0 30.0 40.0))
            (= original (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
            false)
          false)
        false)
      false)
    false))

(fn imported_insert_helper_ok () -> bool
  (let values (vec f64) (triple 10.0 20.0 30.0))
  (if (= (insert_at values 1 99.0) (append2 (pair 10.0 99.0) 20.0 30.0))
    (if (= (insert_at values 3 99.0) (append values 99.0))
      (if (= values (triple 10.0 20.0 30.0))
        (if (= (insert_at values -1 99.0) values)
          (= (insert_at values 4 99.0) values)
          false)
        false)
      false)
    false))

(fn imported_insert_range_helper_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let inserted (vec f64) (pair 77.0 88.0))
  (if (= (insert_range values -1 inserted) values)
    (if (= (insert_range values 2 inserted) (append3 (append2 (pair 10.0 20.0) 77.0 88.0) 30.0 40.0 50.0))
      (if (= (insert_range values 5 inserted) (append2 (append2 (triple 10.0 20.0 30.0) 40.0 50.0) 77.0 88.0))
        (if (= values (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
          (if (= inserted (pair 77.0 88.0))
            (= (insert_range values 6 inserted) values)
            false)
          false)
        false)
      false)
    false))

(fn imported_replace_helper_ok () -> bool
  (if (= (replace_at (triple 10.0 20.0 30.0) 1 99.0) (triple 10.0 99.0 30.0))
    (if (= (replace_at (triple 10.0 20.0 30.0) -1 99.0) (triple 10.0 20.0 30.0))
      (= (replace_at (pair 10.0 20.0) 2 99.0) (pair 10.0 20.0))
      false)
    false))

(fn imported_replace_range_helper_ok () -> bool
  (let original (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (let replacement (vec f64) (pair 77.0 88.0))
  (if (= (replace_range original -1 2 replacement) original)
    (if (= (replace_range original 3 3 replacement) original)
      (if (= (replace_range original 4 2 replacement) original)
        (if (= (replace_range original 5 9 replacement) original)
          (if (= (replace_range original 2 99 replacement) (append2 (pair 10.0 20.0) 77.0 88.0))
            (if (= (replace_range original 1 4 replacement) (append2 (pair 10.0 77.0) 88.0 50.0))
              (if (= original (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
                (= replacement (pair 77.0 88.0))
                false)
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_remove_helper_ok () -> bool
  (let original (vec f64) (triple 10.0 20.0 30.0))
  (let removed_middle (vec f64) (remove_at original 1))
  (if (= removed_middle (pair 10.0 30.0))
    (if (= (len removed_middle) 2)
      (if (= (remove_at original 0) (pair 20.0 30.0))
        (if (= (remove_at original 2) (pair 10.0 20.0))
          (if (= original (triple 10.0 20.0 30.0))
            (if (= (remove_at original -1) original)
              (= (remove_at original 3) original)
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_remove_range_helper_ok () -> bool
  (let original (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (if (= (remove_range original -1 2) original)
    (if (= (remove_range original 3 3) original)
      (if (= (remove_range original 4 2) original)
        (if (= (remove_range original 5 9) original)
          (if (= (remove_range original 2 99) (pair 10.0 20.0))
            (if (= (remove_range original 1 4) (pair 10.0 50.0))
              (= original (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
              false)
            false)
          false)
        false)
      false)
    false))

(fn imported_real_program_helpers_ok () -> bool
  (let values (vec f64) (append2 (triple 10.0 20.0 30.0) 40.0 50.0))
  (if (= (original_len_after_append) 0)
    (if (contains values 20.0)
      (if (contains values 99.0)
        false
        (= (sum values) 150.0))
      false)
    false))

(fn helpers_all_ok () -> bool
  (if (= (imported_empty_length) 0)
    (if (= (imported_pair_index) 41.0)
      (if (imported_builder_helpers_ok)
        (if (imported_query_helpers_ok)
          (if (imported_option_query_helpers_ok)
            (if (imported_starts_with_helper_ok)
              (if (imported_ends_with_helper_ok)
                (if (imported_without_suffix_helper_ok)
                  (if (imported_without_prefix_helper_ok)
                    (if (imported_transform_helpers_ok)
                      (if (imported_subvec_helper_ok)
                        (if (imported_insert_helper_ok)
                          (if (imported_insert_range_helper_ok)
                            (if (imported_replace_helper_ok)
                              (if (imported_replace_range_helper_ok)
                                (if (imported_remove_helper_ok)
                                  (if (imported_remove_range_helper_ok)
                                    (imported_real_program_helpers_ok)
                                    false)
                                  false)
                                false)
                              false)
                            false)
                          false)
                        false)
                      false)
                    false)
                  false)
                false)
              false)
            false)
          false)
        false)
      false)
    false))

(test "explicit std vec_f64 empty len facade"
  (= (imported_empty_length) 0))

(test "explicit std vec_f64 direct at facade"
  (= (imported_pair_index) 41.0))

(test "explicit std vec_f64 builder helpers"
  (imported_builder_helpers_ok))

(test "explicit std vec_f64 query helpers"
  (imported_query_helpers_ok))

(test "explicit std vec_f64 option query helpers"
  (imported_option_query_helpers_ok))

(test "explicit std vec_f64 starts_with helper"
  (imported_starts_with_helper_ok))

(test "explicit std vec_f64 ends_with helper"
  (imported_ends_with_helper_ok))

(test "explicit std vec_f64 without_suffix helper"
  (imported_without_suffix_helper_ok))

(test "explicit std vec_f64 without_prefix helper"
  (imported_without_prefix_helper_ok))

(test "explicit std vec_f64 transform helpers"
  (imported_transform_helpers_ok))

(test "explicit std vec_f64 subvec helper"
  (imported_subvec_helper_ok))

(test "explicit std vec_f64 insert helper"
  (imported_insert_helper_ok))

(test "explicit std vec_f64 insert range helper"
  (imported_insert_range_helper_ok))

(test "explicit std vec_f64 replace helper"
  (imported_replace_helper_ok))

(test "explicit std vec_f64 replace range helper"
  (imported_replace_range_helper_ok))

(test "explicit std vec_f64 remove helper"
  (imported_remove_helper_ok))

(test "explicit std vec_f64 remove range helper"
  (imported_remove_range_helper_ok))

(test "explicit std vec_f64 real program helpers"
  (imported_real_program_helpers_ok))

(test "explicit std vec_f64 helpers all"
  (helpers_all_ok))

(fn main () -> i32
  (if (helpers_all_ok)
    42
    1))
