package server

import (
	"net/http"
	"testing"
	"time"

	"g.fc.run/misc/byre/internal/api"
)

func TestCheckResponse(t *testing.T) {
	question := api.InboxItem{
		Id:      "q1",
		Kind:    api.InboxItemKindQuestion,
		State:   api.Open,
		Payload: map[string]any{"options": []any{"red", "blue"}},
	}
	report := api.InboxItem{Id: "r1", Kind: api.InboxItemKindReport, State: api.Open, Payload: map[string]any{}}
	closed := question
	closed.State = api.Answered

	str := func(s string) *string { return &s }
	future := time.Now().Add(time.Hour)
	past := time.Now().Add(-time.Hour)

	cases := []struct {
		name   string
		item   api.InboxItem
		create api.InboxResponseCreate
		state  api.InboxState
		status int
	}{
		{"option", question, api.InboxResponseCreate{Type: api.InboxResponseTypeOption, Option: str("blue")}, api.Answered, 0},
		{"option with note", question, api.InboxResponseCreate{Type: api.InboxResponseTypeOption, Option: str("red"), Text: str("but darker")}, api.Answered, 0},
		{"unknown option", question, api.InboxResponseCreate{Type: api.InboxResponseTypeOption, Option: str("green")}, "", http.StatusBadRequest},
		{"missing option", question, api.InboxResponseCreate{Type: api.InboxResponseTypeOption}, "", http.StatusBadRequest},
		{"free form", question, api.InboxResponseCreate{Type: api.InboxResponseTypeFreeForm, Text: str("green")}, api.Answered, 0},
		{"empty free form", question, api.InboxResponseCreate{Type: api.InboxResponseTypeFreeForm, Text: str("  ")}, "", http.StatusBadRequest},
		{"follow-up question", question, api.InboxResponseCreate{Type: api.InboxResponseTypeQuestion, Text: str("why?")}, api.Open, 0},
		{"redirect question", question, api.InboxResponseCreate{Type: api.InboxResponseTypeRedirect, Text: str("stop")}, api.Redirected, 0},
		{"redirect report", report, api.InboxResponseCreate{Type: api.InboxResponseTypeRedirect, Text: str("stop")}, api.Redirected, 0},
		{"snooze", question, api.InboxResponseCreate{Type: api.InboxResponseTypeSnooze, SnoozeUntil: &future}, api.Open, 0},
		{"snooze into past", question, api.InboxResponseCreate{Type: api.InboxResponseTypeSnooze, SnoozeUntil: &past}, "", http.StatusBadRequest},
		{"dismiss report", report, api.InboxResponseCreate{Type: api.InboxResponseTypeDismiss}, api.Dismissed, 0},
		{"dismiss question", question, api.InboxResponseCreate{Type: api.InboxResponseTypeDismiss}, "", http.StatusBadRequest},
		{"option on report", report, api.InboxResponseCreate{Type: api.InboxResponseTypeOption, Option: str("red")}, "", http.StatusBadRequest},
		{"already answered", closed, api.InboxResponseCreate{Type: api.InboxResponseTypeOption, Option: str("red")}, "", http.StatusConflict},
	}

	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			state, herr := checkResponse(c.item, c.create)
			if c.status != 0 {
				if herr == nil || herr.status != c.status {
					t.Fatalf("want status %d, got %+v", c.status, herr)
				}
				return
			}
			if herr != nil {
				t.Fatalf("unexpected error %v", herr.err)
			}
			if state != c.state {
				t.Fatalf("want state %s, got %s", c.state, state)
			}
		})
	}
}