module Feature.Query.UpdateSpec where

import Network.Wai (Application)
import Test.Hspec  hiding (pendingWith)

import Network.HTTP.Types
import Test.Hspec.Wai
import Test.Hspec.Wai.JSON

import PostgREST.Config.PgVersion (PgVersion, pgVersion100)


import Protolude  hiding (get)
import SpecHelper

spec :: PgVersion -> SpecWith ((), Application)
spec actualPgVersion = do
  describe "Patching record" $ do
    context "to unknown uri" $
      it "indicates no table found by returning 404" $
        request methodPatch "/fake" []
          [json| { "real": false } |]
            `shouldRespondWith` 404

    context "on an empty table" $
      it "succeeds with status code 204" $
        request methodPatch "/empty_table" []
            [json| { "extra":20 } |]
          `shouldRespondWith`
            ""
            { matchStatus  = 204,
              matchHeaders = [matchHeaderAbsent hContentType]
            }

    context "with invalid json payload" $
      it "fails with 400 and error" $
        request methodPatch "/simple_pk" [] "}{ x = 2"
          `shouldRespondWith`
          [json|{"message":"Empty or invalid json","code":"PGRST102","details":null,"hint":null}|]
          { matchStatus  = 400,
            matchHeaders = [matchContentTypeJson]
          }

    context "with no payload" $
      it "fails with 400 and error" $
        request methodPatch "/items" [] ""
          `shouldRespondWith`
          [json|{"message":"Empty or invalid json","code":"PGRST102","details":null,"hint":null}|]
          { matchStatus  = 400,
            matchHeaders = [matchContentTypeJson]
          }

    context "insignificant whitespace" $ do
      it "ignores it and successfuly updates with json payload" $ do
        request methodPatch "/items?id=eq.1"
                     [("Prefer", "return=representation")]
                     "\t \n \r { \"id\": 99 } \t \n \r "
          `shouldRespondWith` [json|[{"id":99}]|]
          { matchStatus  = 200
          }

    context "in a nonempty table" $ do
      it "can update a single item" $ do
        patch "/items?id=eq.2"
            [json| { "id":42 } |]
          `shouldRespondWith`
            ""
            { matchStatus  = 204
            , matchHeaders = [ matchHeaderAbsent hContentType
                             , "Content-Range" <:> "0-0/*" ]
            }

      it "returns empty array when no rows updated and return=rep" $
        request methodPatch "/items?id=eq.999999"
          [("Prefer", "return=representation")] [json| { "id":999999 } |]
          `shouldRespondWith` "[]"
          {
            matchStatus  = 200,
            matchHeaders = ["Preference-Applied" <:> "return=representation"]
          }

      it "returns status code 200 when no rows updated" $
        request methodPatch "/items?id=eq.99999999" []
          [json| { "id": 42 } |]
            `shouldRespondWith` 204

      it "returns updated object as array when return=rep" $
        request methodPatch "/items?id=eq.2"
          [("Prefer", "return=representation")] [json| { "id":2 } |]
          `shouldRespondWith` [json|[{"id":2}]|]
          { matchStatus  = 200,
            matchHeaders = ["Content-Range" <:> "0-0/*"
                           , "Preference-Applied" <:> "return=representation"]
          }

      it "can update multiple items" $ do
        get "/no_pk?select=a&b=eq.1"
          `shouldRespondWith`
            [json|[]|]

        request methodPatch "/no_pk?b=eq.0"
            [("Prefer", "tx=commit")]
            [json| { b: "1" } |]
          `shouldRespondWith`
            ""
            { matchStatus  = 204
            , matchHeaders = [ matchHeaderAbsent hContentType
                             , "Content-Range" <:> "0-1/*"
                             , "Preference-Applied" <:> "tx=commit" ]
            }

        -- check it really got updated
        get "/no_pk?select=a&b=eq.1"
          `shouldRespondWith`
            [json|[ { a: "1" }, { a: "2" } ]|]

        -- put value back for other tests
        request methodPatch "/no_pk?b=eq.1"
            [("Prefer", "tx=commit")]
            [json| { b: "0" } |]
          `shouldRespondWith`
            ""
            { matchStatus = 204
            , matchHeaders = [matchHeaderAbsent hContentType]
            }

      it "can set a column to NULL" $ do
        request methodPatch "/no_pk?a=eq.1"
            [("Prefer", "return=representation")]
            [json| { b: null } |]
          `shouldRespondWith`
            [json| [{ a: "1", b: null }] |]

      context "filtering by a computed column" $ do
        it "is successful" $
          request methodPatch
            "/items?is_first=eq.true"
            [("Prefer", "return=representation")]
            [json| { id: 100 } |]
            `shouldRespondWith` [json| [{ id: 100 }] |]
            { matchStatus  = 200,
              matchHeaders = [matchContentTypeJson
                             ,"Content-Range" <:> "0-0/*"
                             , "Preference-Applied" <:> "return=representation"]
            }

        it "returns empty array when no rows updated and return=rep" $
          request methodPatch
            "/items?always_true=eq.false"
            [("Prefer", "return=representation")]
            [json| { id: 100 } |]
            `shouldRespondWith` "[]"
            { matchStatus  = 200,
              matchHeaders = ["Preference-Applied" <:> "return=representation"]
            }

      context "with representation requested" $ do
        it "can provide a representation" $ do
          _ <- post "/items"
            [json| { id: 1 } |]
          request methodPatch
            "/items?id=eq.1"
            [("Prefer", "return=representation")]
            [json| { id: 99 } |]
            `shouldRespondWith` [json| [{id:99}] |]
            { matchHeaders = [matchContentTypeJson
                             , "Preference-Applied" <:> "return=representation"]
            }
          -- put value back for other tests
          void $ request methodPatch "/items?id=eq.99" [] [json| { "id":1 } |]

        it "can return computed columns" $
          request methodPatch
            "/items?id=eq.1&select=id,always_true"
            [("Prefer", "return=representation")]
            [json| { id: 1 } |]
            `shouldRespondWith` [json| [{ id: 1, always_true: true }] |]
            { matchHeaders = [matchContentTypeJson
                             , "Preference-Applied" <:> "return=representation"]
            }

        it "can select overloaded computed columns" $ do
          request methodPatch
            "/items?id=eq.1&select=id,computed_overload"
            [("Prefer", "return=representation")]
            [json| { id: 1 } |]
            `shouldRespondWith` [json| [{ id: 1, computed_overload: true }] |]
            { matchHeaders = [matchContentTypeJson
                             , "Preference-Applied" <:> "return=representation"]
            }
          request methodPatch
            "/items2?id=eq.1&select=id,computed_overload"
            [("Prefer", "return=representation")]
            [json| { id: 1 } |]
            `shouldRespondWith` [json| [{ id: 1, computed_overload: true }] |]
            { matchHeaders = [matchContentTypeJson
                             , "Preference-Applied" <:> "return=representation"]
            }

      it "ignores ?select= when return not set or return=minimal" $ do
        request methodPatch "/items?id=eq.1&select=id"
           [("Prefer", "return=minimal")]
           [json| { id:1 } |]
          `shouldRespondWith`
            ""
            { matchStatus  = 204
            , matchHeaders = [ matchHeaderAbsent hContentType
                             , "Content-Range" <:> "0-0/*"
                             , "Preference-Applied" <:> "return=minimal"]
            }
        request methodPatch "/items?id=eq.1&select=id"
            [("Prefer", "return=minimal")]
            [json| { id:1 } |]
          `shouldRespondWith`
            ""
            { matchStatus  = 204
            , matchHeaders = [ matchHeaderAbsent hContentType
                             , "Content-Range" <:> "0-0/*"
                             , "Preference-Applied" <:> "return=minimal"]
            }

      context "when patching with an empty body" $ do
        it "makes no updates and returns 204 without return= and without ?select=" $ do
          request methodPatch "/items"
              []
              [json| {} |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

          request methodPatch "/items"
              []
              [json| [] |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

          request methodPatch "/items"
              []
              [json| [{}] |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

        it "makes no updates and returns 204 without return= and with ?select=" $ do
          request methodPatch "/items?select=id"
              []
              [json| {} |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

          request methodPatch "/items?select=id"
              []
              [json| [] |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

          request methodPatch "/items?select=id"
              []
              [json| [{}] |]
            `shouldRespondWith`
              ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "*/*" ]
              }

        it "makes no updates and returns 200 with return=rep and without ?select=" $
          request methodPatch "/items" [("Prefer", "return=representation")] [json| {} |]
            `shouldRespondWith` "[]"
            {
              matchStatus  = 200,
              matchHeaders = ["Content-Range" <:> "*/*"
                             , "Preference-Applied" <:> "return=representation"]
            }

        it "makes no updates and returns 200 with return=rep and with ?select=" $
          request methodPatch "/items?select=id" [("Prefer", "return=representation")] [json| {} |]
            `shouldRespondWith` "[]"
            {
              matchStatus  = 200,
              matchHeaders = ["Content-Range" <:> "*/*"
                             , "Preference-Applied" <:> "return=representation"]
            }

        it "makes no updates and returns 200 with return=rep and with ?select= for overloaded computed columns" $
          request methodPatch "/items?select=id,computed_overload" [("Prefer", "return=representation")] [json| {} |]
            `shouldRespondWith` "[]"
            {
              matchStatus  = 200,
              matchHeaders = ["Content-Range" <:> "*/*"
                             , "Preference-Applied" <:> "return=representation"]
            }

    context "with unicode values" $
      it "succeeds and returns values intact" $ do
        request methodPatch "/no_pk?a=eq.1"
            [("Prefer", "return=representation")]
            [json| { "a":"圍棋", "b":"￥" } |]
          `shouldRespondWith`
            [json|[ { "a":"圍棋", "b":"￥" } ]|]

    context "PATCH with ?columns parameter" $ do
      it "ignores json keys not included in ?columns" $ do
        request methodPatch "/articles?id=eq.1&columns=body"
            [("Prefer", "return=representation")]
            [json| {"body": "Some real content", "smth": "here", "other": "stuff", "fake_id": 13} |]
          `shouldRespondWith`
            [json|[{"id": 1, "body": "Some real content", "owner": "postgrest_test_anonymous"}]|]

      it "ignores json keys and gives 200 if no record updated" $
        request methodPatch "/articles?id=eq.2001&columns=body" [("Prefer", "return=representation")]
          [json| {"body": "Some real content", "smth": "here", "other": "stuff", "fake_id": 13} |] `shouldRespondWith` 200

      it "disallows ?columns which don't exist" $ do
        request methodPatch "/articles?id=eq.1&columns=helicopter"
          [("Prefer", "return=representation")]
          [json|{"body": "yyy"}|]
          `shouldRespondWith`
          [json|{"code":"PGRST204","details":null,"hint":null,"message":"Could not find the 'helicopter' column of 'articles' in the schema cache"}|]
          { matchStatus  = 400
          , matchHeaders = []
          }

      it "returns missing table error even if also has invalid ?columns" $ do
        request methodPatch "/garlic?columns=helicopter"
          [("Prefer", "return=representation")]
          [json|[
            {"id": 204, "body": "yyy"},
            {"id": 205, "body": "zzz"}]|]
          `shouldRespondWith`
          [json|{} |]
          { matchStatus  = 404
          , matchHeaders = []
          }

      context "apply defaults on missing values" $ do
        it "updates table using default values(field-with_sep) when json keys are undefined" $ do
          request methodPatch "/complex_items?id=eq.3&columns=name,field-with_sep"
            [("Prefer", "return=representation"), ("Prefer", "missing=default")]
            [json|{"name": "Tres"}|]
            `shouldRespondWith`
            [json|[
              {"id":3,"name":"Tres","settings":{"foo":{"int":1,"bar":"baz"}},"arr_data":[1,2,3],"field-with_sep":1}
            ]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "missing=default, return=representation"]
            }

        it "updates with limit/offset using table default values(field-with_sep) when json keys are undefined" $ do
          request methodPatch "/complex_items?select=id,name&columns=name,field-with_sep&limit=1&offset=2&order=id"
            [("Prefer", "return=representation"), ("Prefer", "missing=default")]
            [json|{"name": "Tres"}|]
            `shouldRespondWith`
            [json|[
              {"id":3,"name":"Tres"}
            ]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "missing=default, return=representation"]
            }

        it "updates table default values(field-with_sep) when json keys are undefined" $ do
          request methodPatch "/complex_items?id=eq.3&columns=name,field-with_sep"
            [("Prefer", "return=representation"), ("Prefer", "missing=default")]
            [json|{"name": "Tres"}|]
            `shouldRespondWith`
            [json|[
              {"id":3,"name":"Tres","settings":{"foo":{"int":1,"bar":"baz"}},"arr_data":[1,2,3],"field-with_sep":1}
            ]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "missing=default, return=representation"]
            }

        it "updates view default values(field-with_sep) when json keys are undefined" $
          request methodPatch "/complex_items_view?id=eq.3&columns=arr_data,name"
            [("Prefer", "return=representation"), ("Prefer", "missing=default")]
            [json|
              {"arr_data":null}
            |]
            `shouldRespondWith`
            [json|[
              {"id":3,"name":"Default","settings":{"foo":{"int":1,"bar":"baz"}},"arr_data":null,"field-with_sep":3}
            ]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "missing=default, return=representation"]
            }

    -- https://github.com/PostgREST/postgrest/issues/2861
    context "bit and char columns with length" $ do
      it "should update a bit column with length" $
        request methodPatch "/bitchar_with_length?select=bit,char&char=eq.aaaaa"
            [("Prefer", "return=representation")]
            [json|{"bit": "11100"}|]
          `shouldRespondWith` [json|[{ "bit": "11100", "char": "aaaaa" }]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "return=representation"]
            }

      it "should update a char column with length" $
        request methodPatch "/bitchar_with_length?select=bit,char&bit=eq.00000"
            [("Prefer", "return=representation")]
            [json|{"char": "zzzyy"}|]
          `shouldRespondWith` [json|[{ "bit": "00000", "char": "zzzyy" }]|]
            { matchStatus  = 200
            , matchHeaders = ["Preference-Applied" <:> "return=representation"]
            }

  context "tables with self reference foreign keys" $ do
    context "embeds children after update" $ do
      it "without filters" $
        request methodPatch "/web_content?id=eq.0&select=id,name,web_content(name)"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched"}|]
          `shouldRespondWith`
          [json|
            [ { "id": 0, "name": "tardis-patched", "web_content": [ { "name": "fezz" }, { "name": "foo" }, { "name": "bar" } ]} ]
          |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

      it "with filters" $
        request methodPatch "/web_content?id=eq.0&select=id,name,web_content(name)&web_content.name=like.f*"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched"}|]
          `shouldRespondWith`
          [json|
            [ { "id": 0, "name": "tardis-patched", "web_content": [ { "name": "fezz" }, { "name": "foo" } ]} ]
          |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

    context "embeds parent, children and grandchildren after update" $ do
      it "without filters" $
        request methodPatch "/web_content?id=eq.0&select=id,name,web_content(name,web_content(name)),parent_content:p_web_id(name)"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched-2"}|]
          `shouldRespondWith`
          [json| [
            {
              "id": 0,
              "name": "tardis-patched-2",
              "parent_content": { "name": "wat" },
              "web_content": [
                  { "name": "fezz", "web_content": [ { "name": "wut" } ] },
                  { "name": "foo",  "web_content": [] },
                  { "name": "bar",  "web_content": [] }
              ]
            }
          ] |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

      it "with filters" $
        request methodPatch "/web_content?id=eq.0&select=id,name,web_content(name,web_content(name)),parent_content:p_web_id(name)&web_content.name=like.f*&web_content.web_content.id=eq.4&parent_content.name=neq.wat"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched-2"}|]
          `shouldRespondWith`
          [json| [
            {
              "id": 0,
              "name": "tardis-patched-2",
              "parent_content": null,
              "web_content": [
                  { "name": "fezz", "web_content": [ { "name": "wut" } ] },
                  { "name": "foo",  "web_content": [] }
              ]
            }
          ] |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

    context "embeds children after update without explicitly including the id in the ?select" $ do
      it "without filters" $
        request methodPatch "/web_content?id=eq.0&select=name,web_content(name)"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched"}|]
          `shouldRespondWith`
          [json|
            [ { "name": "tardis-patched", "web_content": [ { "name": "fezz" }, { "name": "foo" }, { "name": "bar" } ]} ]
          |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

      it "with filters" $
        request methodPatch "/web_content?id=eq.0&select=name,web_content(name)&web_content.name=like.b*"
                [("Prefer", "return=representation")]
          [json|{"name": "tardis-patched"}|]
          `shouldRespondWith`
          [json|
            [ { "name": "tardis-patched", "web_content": [ { "name": "bar" } ]} ]
          |]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

  context "tables with foreign keys referencing other tables" $ do
    context "embeds an M2M relationship plus parent after update" $ do
      it "without filters" $
        request methodPatch "/users?id=eq.1&select=name,tasks(name,project:projects(name))"
                [("Prefer", "return=representation")]
          [json|{"name": "Kevin Malone"}|]
          `shouldRespondWith`
          [json|[
            {
              "name": "Kevin Malone",
              "tasks": [
                  { "name": "Design w7", "project": { "name": "Windows 7" } },
                  { "name": "Code w7", "project": { "name": "Windows 7" } },
                  { "name": "Design w10", "project": { "name": "Windows 10" } },
                  { "name": "Code w10", "project": { "name": "Windows 10" } }
              ]
            }
          ]|]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

      it "with filters" $
        request methodPatch "/users?id=eq.1&select=name,tasks(name,project:projects(name))&tasks.name=ilike.code*&tasks.project.name=like.*10"
                [("Prefer", "return=representation")]
          [json|{"name": "Kevin Malone"}|]
          `shouldRespondWith`
          [json|[
            {
              "name": "Kevin Malone",
              "tasks": [
                  { "name": "Code w7", "project": null },
                  { "name": "Code w10", "project": { "name": "Windows 10" } }
              ]
            }
          ]|]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }


    context "embeds an O2O relationship after update" $ do
      it "without filters" $ do
        request methodPatch "/students?id=eq.1&select=name,students_info(address)"
                [("Prefer", "return=representation")]
          [json|{"name": "Johnny Doe"}|]
          `shouldRespondWith`
          [json|[
            {
              "name": "Johnny Doe",
              "students_info":{"address":"Street 1"}
            }
          ]|]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }
        request methodPatch "/students_info?id=eq.1&select=address,students(name)"
                [("Prefer", "return=representation")]
          [json|{"address": "New Street 1"}|]
          `shouldRespondWith`
          [json|[
            {
              "address": "New Street 1",
              "students":{"name": "John Doe"}
            }
          ]|]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

      it "with filters" $ do
        request methodPatch "/students?id=eq.1&select=name,students_info(address)&students_info.code=like.0002"
                [("Prefer", "return=representation")]
          [json|{"name": "Johnny Doe"}|]
          `shouldRespondWith`
          [json|[
            {
              "name": "Johnny Doe",
              "students_info": null
            }
          ]|]
          { matchStatus  = 200
          , matchHeaders = [matchContentTypeJson, "Preference-Applied" <:> "return=representation"]
          }

  context "table with limited privileges" $ do
    it "succeeds updating row and gives a 204 when using return=minimal" $
      request methodPatch "/app_users?id=eq.1"
          [("Prefer", "return=minimal")]
          [json| { "password": "passxyz" } |]
        `shouldRespondWith`
          ""
          { matchStatus = 204
          , matchHeaders = [matchHeaderAbsent hContentType
                           , "Preference-Applied" <:> "return=minimal"]
          }

    it "can update without return=minimal and no explicit select" $
      request methodPatch "/app_users?id=eq.1"
          []
          [json| { "password": "passabc" } |]
        `shouldRespondWith`
          ""
          { matchStatus = 204
          , matchHeaders = [matchHeaderAbsent hContentType]
          }

  -- Data representations for payload parsing requires Postgres 10 or above.
  when (actualPgVersion >= pgVersion100) $ do
    describe "Data representations" $ do
      context "for a single row" $ do
        it "parses values in payload" $
          request methodPatch "/datarep_todos?id=eq.2" [("Prefer", "return=headers-only")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
            `shouldRespondWith`
            ""
              { matchStatus  = 204
              , matchHeaders = [ matchHeaderAbsent hContentType
                               , "Content-Range" <:> "0-0/*"]
              }

        it "parses values in payload and formats individually selected values in return=representation" $
          request methodPatch "/datarep_todos?id=eq.2&select=id,label_color" [("Prefer", "return=representation")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
            `shouldRespondWith`
            [json| [{"id":2, "label_color": "#221100"}] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
              }

        it "parses values in payload and formats values in return=representation" $
          request methodPatch "/datarep_todos?id=eq.2" [("Prefer", "return=representation")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:20Z", "icon_image": "3q2+7w"} |]
            `shouldRespondWith`
            [json|  [{"id":2,"name":"Essay","label_color":"#221100","due_at":"2019-01-03T11:00:20Z","icon_image":"3q2+7w==","created_at":1513213350,"budget":"100000000000000.13"}] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
              }

        it "parses values in payload and formats star mixed selected values in return=representation" $
          request methodPatch "/datarep_todos?id=eq.2&select=due_at,*" [("Prefer", "return=representation")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z", "created_at": 0} |]
            `shouldRespondWith`
            -- end up with due_at twice here but that's unrelated to data reps
            [json| [{"due_at":"2019-01-03T11:00:00Z","id":2,"name":"Essay","label_color":"#221100","due_at":"2019-01-03T11:00:00Z","icon_image":null,"created_at":0,"budget":"100000000000000.13"}] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
              }
      context "for multiple rows" $ do
        it "parses values in payload and formats individually selected values in return=representation" $
          request methodPatch "/datarep_todos?id=lt.4&select=id,name,label_color" [("Prefer", "return=representation")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
            `shouldRespondWith`
            [json| [
              {"id":1, "name": "Report", "label_color": "#221100"},
              {"id":2, "name": "Essay", "label_color": "#221100"},
              {"id":3, "name": "Algebra", "label_color": "#221100"}
            ] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-2/*"
                               , "Preference-Applied" <:> "return=representation"]
              }

        it "parses values in payload and formats values in return=representation" $
          request methodPatch "/datarep_todos?id=lt.4" [("Prefer", "return=representation")]
            [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z", "icon_image": "3q2+7w="} |]
            `shouldRespondWith`
            [json| [
              {"id":1,"name":"Report","label_color":"#221100","due_at":"2019-01-03T11:00:00Z","icon_image":"3q2+7w==","created_at":1513213350,"budget":"12.50"},
              {"id":2,"name":"Essay","label_color":"#221100","due_at":"2019-01-03T11:00:00Z","icon_image":"3q2+7w==","created_at":1513213350,"budget":"100000000000000.13"},
              {"id":3,"name":"Algebra","label_color":"#221100","due_at":"2019-01-03T11:00:00Z","icon_image":"3q2+7w==","created_at":1513213350,"budget":"0.00"}
            ] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-2/*"
                               , "Preference-Applied" <:> "return=representation"]
              }
      context "with ?columns parameter" $ do
        it "ignores json keys not included in ?columns; parses only the ones specified" $
          request methodPatch "/datarep_todos?id=eq.2&columns=due_at" [("Prefer", "return=representation")]
            [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
            `shouldRespondWith`
            [json| [
               {"id":2,"name":"Essay","label_color":"#000100","due_at":"2019-01-03T11:00:00Z","icon_image":null,"created_at":1513213350,"budget":"100000000000000.13"}
            ] |]
              { matchStatus  = 200
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
              }

        it "fails if at least one specified column doesn't exist" $
          request methodPatch "/datarep_todos?id=eq.2&columns=label_color,helicopters" [("Prefer", "return=representation")]
            [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
            `shouldRespondWith`
            [json| {"code":"PGRST204","details":null,"hint":null,"message":"Could not find the 'helicopters' column of 'datarep_todos' in the schema cache"} |]
              { matchStatus  = 400
              , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"]
              }

        it "ignores json keys and gives 200 if no record updated" $
          request methodPatch "/datarep_todos?id=eq.2001&columns=label_color" [("Prefer", "return=representation")]
           [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
           `shouldRespondWith` 200
      context "on a view" $ do
        context "for a single row" $ do
          it "parses values in payload" $
            request methodPatch "/datarep_todos_computed?id=eq.2" [("Prefer", "return=headers-only")]
              [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
              `shouldRespondWith`
              ""
                { matchStatus  = 204
                , matchHeaders = [ matchHeaderAbsent hContentType
                                 , "Content-Range" <:> "0-0/*" ]
                }

          it "parses values in payload and formats individually selected values in return=representation" $
            request methodPatch "/datarep_todos_computed?id=eq.2&select=id,label_color" [("Prefer", "return=representation")]
              [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
              `shouldRespondWith`
              [json| [{"id":2, "label_color": "#221100"}] |]
                { matchStatus  = 200
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
                }

          it "parses values in payload and formats values in return=representation" $
            request methodPatch "/datarep_todos_computed?id=eq.2" [("Prefer", "return=representation")]
              [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:20Z"} |]
              `shouldRespondWith`
              [json| [{"id":2, "name": "Essay", "label_color": "#221100", "dark_color":"#110880", "due_at":"2019-01-03T11:00:20Z"}] |]
                { matchStatus  = 200
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
                }
        context "for multiple rows" $ do
          it "parses values in payload and formats individually selected values in return=representation" $
            request methodPatch "/datarep_todos_computed?id=lt.4&select=id,name,label_color,dark_color" [("Prefer", "return=representation")]
              [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
              `shouldRespondWith`
              [json| [
                {"id":1, "name": "Report", "label_color": "#221100", "dark_color":"#110880"},
                {"id":2, "name": "Essay", "label_color": "#221100", "dark_color":"#110880"},
                {"id":3, "name": "Algebra", "label_color": "#221100", "dark_color":"#110880"}
              ] |]
                { matchStatus  = 200
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-2/*"
                               , "Preference-Applied" <:> "return=representation"]
                }

          it "parses values in payload and formats values in return=representation" $
            request methodPatch "/datarep_todos_computed?id=lt.4" [("Prefer", "return=representation")]
              [json| {"label_color": "#221100", "due_at": "2019-01-03T11:00:00Z"} |]
              `shouldRespondWith`
              [json| [
                {"id":1, "name": "Report", "label_color": "#221100", "dark_color":"#110880", "due_at":"2019-01-03T11:00:00Z"},
                {"id":2, "name": "Essay", "label_color": "#221100", "dark_color":"#110880", "due_at":"2019-01-03T11:00:00Z"},
                {"id":3, "name": "Algebra", "label_color": "#221100", "dark_color":"#110880", "due_at":"2019-01-03T11:00:00Z"}
              ] |]
                { matchStatus  = 200
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-2/*"
                               , "Preference-Applied" <:> "return=representation"]
                }
        context "with ?columns parameter" $ do
          it "ignores json keys not included in ?columns; parses only the ones specified" $
            request methodPatch "/datarep_todos_computed?id=eq.2&columns=due_at" [("Prefer", "return=representation")]
              [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
              `shouldRespondWith`
              [json| [
                {"id":2, "name": "Essay", "label_color": "#000100", "dark_color": "#000080", "due_at":"2019-01-03T11:00:00Z"}
              ] |]
                { matchStatus  = 200
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"
                               , "Content-Range" <:> "0-0/*"
                               , "Preference-Applied" <:> "return=representation"]
                }

          it "fails if at least one specified column doesn't exist" $
            request methodPatch "/datarep_todos_computed?id=eq.2&columns=label_color,helicopters" [("Prefer", "return=representation")]
              [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
              `shouldRespondWith`
              [json| {"code":"PGRST204","details":null,"hint":null,"message":"Could not find the 'helicopters' column of 'datarep_todos_computed' in the schema cache"} |]
                { matchStatus  = 400
                , matchHeaders = ["Content-Type" <:> "application/json; charset=utf-8"]
                }

          it "ignores json keys and gives 200 if no record updated" $
            request methodPatch "/datarep_todos_computed?id=eq.2001&columns=label_color" [("Prefer", "return=representation")]
             [json| {"due_at": "2019-01-03T11:00:00Z", "smth": "here", "label_color": "invalid", "fake_id": 13} |]
             `shouldRespondWith` 200