// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.

package model

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestCollectMmBlockActionIDs(t *testing.T) {
	t.Run("nested container blocks", func(t *testing.T) {
		blocks := []any{
			map[string]any{"type": "text", "text": "hi"},
			map[string]any{
				"type": "container",
				"content": []any{
					map[string]any{"type": "button", "text": "A", "action_id": "a1"},
					map[string]any{"type": "static_select", "action_id": "s1", "placeholder": "pick"},
				},
			},
		}
		ids := CollectMmBlockActionIDs(blocks)
		assert.Equal(t, map[string]struct{}{"a1": {}, "s1": {}}, ids)
	})

	t.Run("columnSet", func(t *testing.T) {
		blocks := []any{
			map[string]any{
				"type": "column_set",
				"columns": []any{
					map[string]any{
						"type": "column",
						"items": []any{
							map[string]any{"type": "button", "text": "A", "action_id": "inset"},
						},
					},
					map[string]any{
						"type": "text",
						"text": "not a column",
					},
				},
			},
			map[string]any{
				"type": "column",
				"items": []any{
					map[string]any{"type": "button", "text": "B", "action_id": "orphan"},
				},
			},
		}
		ids := CollectMmBlockActionIDs(blocks)
		assert.Equal(t, map[string]struct{}{"inset": {}}, ids)
	})
}

func TestSubsetMmBlocksActions(t *testing.T) {
	all := map[string]any{
		"a1": map[string]any{"type": "external", "url": "http://example.com/a"},
		"b2": map[string]any{"type": "external", "url": "http://example.com/b"},
	}
	subset := SubsetMmBlocksActions(all, map[string]struct{}{"a1": {}})
	require.Len(t, subset, 1)
	assert.Contains(t, subset, "a1")
}

func TestValidateMmBlocksActionsForWebhook(t *testing.T) {
	blocks := []any{
		map[string]any{"type": "button", "text": "Go", "action_id": "act"},
	}
	require.Error(t, ValidateMmBlocksActionsForWebhook(blocks, nil))
	require.Error(t, ValidateMmBlocksActionsForWebhook(nil, map[string]any{"act": map[string]any{}}))
	require.NoError(t, ValidateMmBlocksActionsForWebhook(blocks, map[string]any{
		"act": map[string]any{"type": "external", "url": "http://example.com"},
	}))
}

func TestCollectMmactionIDsFromMmBlockText(t *testing.T) {
	blocks := []any{
		map[string]any{
			"type": "text",
			"text": "Choose [one](mmaction://pick1) or [two](mmaction://pick2)",
		},
	}
	ids := CollectMmBlockActionIDs(blocks)
	assert.Equal(t, map[string]struct{}{"pick1": {}, "pick2": {}}, ids)
}

func TestCollectMmactionIDsFromText(t *testing.T) {
	t.Run("skipsCode", func(t *testing.T) {
		ids := CollectMmactionIDsFromText("Use [real](mmaction://real1) not `mmaction://inline`")
		assert.Equal(t, map[string]struct{}{"real1": {}}, ids)

		ids = CollectMmactionIDsFromText("```\n[mmaction://fence](mmaction://fence)\n```\n[ok](mmaction://ok1)")
		assert.Equal(t, map[string]struct{}{"ok1": {}}, ids)
	})
}

func TestCollectBlockKitActionIDs(t *testing.T) {
	blocks := []any{
		map[string]any{
			"type": "section",
			"text": map[string]any{"type": "mrkdwn", "text": "[Go](mmaction://md1)"},
			"accessory": map[string]any{
				"type": "button", "text": map[string]any{"type": "plain_text", "text": "Btn"},
				"action_id": "acc1",
			},
		},
		map[string]any{
			"type": "actions",
			"elements": []any{
				map[string]any{
					"type":      "button",
					"text":      map[string]any{"type": "plain_text", "text": "OK"},
					"action_id": "row1",
				},
			},
		},
	}
	ids := CollectBlockKitActionIDs(blocks)
	assert.Equal(t, map[string]struct{}{"md1": {}, "acc1": {}, "row1": {}}, ids)
}

func TestCollectAdaptiveCardActionIDs(t *testing.T) {
	cards := []any{
		map[string]any{
			"type": "AdaptiveCard",
			"body": []any{
				map[string]any{"type": "TextBlock", "text": "See [here](mmaction://cardmd)"},
				map[string]any{
					"type": "ActionSet",
					"actions": []any{
						map[string]any{"type": "Action.Submit", "title": "OK", "id": "submit1"},
					},
				},
			},
			"actions": []any{
				map[string]any{"type": "Action.Submit", "title": "Footer", "id": "footer1"},
			},
		},
	}
	ids := CollectAdaptiveCardActionIDs(cards)
	assert.Equal(t, map[string]struct{}{"cardmd": {}, "submit1": {}, "footer1": {}}, ids)
}

func TestValidateMmBlocksActionsOnPost(t *testing.T) {
	t.Run("pairing", func(t *testing.T) {
		post := &Post{
			Props: map[string]any{
				PostPropsMmBlocks: []any{
					map[string]any{"type": "button", "text": "Go", "action_id": "act"},
				},
				PostPropsMmBlocksActions: map[string]any{
					"act": map[string]any{"type": "external", "url": "http://example.com"},
				},
			},
		}
		require.NoError(t, ValidateMmBlocksActions(post))

		extra := post.Clone()
		extraProps := extra.GetProps()
		extraProps[PostPropsMmBlocksActions] = map[string]any{
			"act":   map[string]any{"type": "external", "url": "http://example.com"},
			"extra": map[string]any{"type": "external", "url": "http://example.com/2"},
		}
		extra.SetProps(extraProps)
		require.Error(t, ValidateMmBlocksActions(extra))
	})

	t.Run("disabledControlSkipsActionRegistry", func(t *testing.T) {
		post := &Post{
			Props: map[string]any{
				PostPropsMmBlocks: []any{
					map[string]any{
						"type":      "button",
						"text":      "Disabled",
						"action_id": "disabled_only",
						"disabled":  true,
					},
				},
			},
		}
		require.NoError(t, ValidateMmBlocksActions(post))
	})
}

func TestValidateInteractiveActionsForWebhook(t *testing.T) {
	t.Run("messageMmaction", func(t *testing.T) {
		post := &Post{
			Message: "Click [go](mmaction://go1)",
			Props: map[string]any{
				PostPropsMmBlocksActions: map[string]any{
					"go1": map[string]any{"type": "external", "url": "http://example.com"},
				},
			},
		}
		require.NoError(t, ValidateInteractiveActionsForWebhook(post))

		postMissing := &Post{Message: "Click [go](mmaction://go1)"}
		require.Error(t, ValidateInteractiveActionsForWebhook(postMissing))
	})
}

func TestApplyMmBlocksWithActionsToProps(t *testing.T) {
	t.Run("nilProps", func(t *testing.T) {
		blocks := []any{
			map[string]any{"type": "button", "text": "Go", "action_id": "act1"},
		}
		actions := map[string]any{
			"act1": map[string]any{"type": "external", "url": "http://example.com"},
		}

		props := ApplyMmBlocksWithActionsToProps(nil, blocks, actions)
		require.NotNil(t, props)
		require.Equal(t, blocks, props[PostPropsMmBlocks])
		require.Equal(t, actions, props[PostPropsMmBlocksActions])
	})
}

func TestPost_InteractiveBlocksImageURLs(t *testing.T) {
	t.Run("empty post", func(t *testing.T) {
		assert.Nil(t, (&Post{}).InteractiveBlocksImageURLs(true))
	})

	t.Run("collects URLs from all interactive sources when enabled", func(t *testing.T) {
		post := &Post{
			Props: StringInterface{
				PostPropsMmBlocks: []any{
					map[string]any{
						"type": "text",
						"text": "x ![a](https://example.com/md.png)",
					},
					map[string]any{
						"type": "image",
						"url":  "https://example.com/mm_direct1.png",
					},
					map[string]any{
						"type": "image",
						"url":  "https://example.com/mm_direct2.png",
					},
					map[string]any{
						"type": "container",
						"content": []any{
							map[string]any{
								"type": "image",
								"url":  "https://example.com/mm_nested.png",
							},
							map[string]any{
								"type": "image",
								"url":  "https://example.com/mm_nested2.png",
							},
						},
					},
				},
				PostPropsBlockKitBlocks: []any{
					map[string]any{
						"type":      "image",
						"image_url": "https://example.com/bk_top1.png",
					},
					map[string]any{
						"type":      "image",
						"image_url": "https://example.com/bk_top2.png",
					},
					map[string]any{
						"type": "section",
						"text": map[string]any{
							"type": "plain_text",
							"text": "caption",
						},
						"accessory": map[string]any{
							"type":      "image",
							"image_url": "https://example.com/bk_accessory.png",
						},
					},
				},
				PostPropsAdaptiveCards: []any{
					map[string]any{
						"type": "AdaptiveCard",
						"body": []any{
							map[string]any{
								"type": "Image",
								"url":  "https://example.com/ac_card1_a.png",
							},
							map[string]any{
								"type": "Image",
								"url":  "https://example.com/ac_card1_b.png",
							},
						},
					},
					map[string]any{
						"type": "AdaptiveCard",
						"body": []any{
							map[string]any{
								"type": "Image",
								"url":  "https://example.com/ac_card2.png",
							},
						},
					},
				},
				PostPropsAttachments: []*MessageAttachment{
					{
						ImageURL:   "https://example.com/attach_main.png",
						ThumbURL:   "https://example.com/attach_thumb.png",
						AuthorIcon: "https://example.com/attach_author.png",
						FooterIcon: "https://example.com/attach_footer.png",
					},
					{ImageURL: "https://example.com/attach_second.png"},
					nil,
					{Text: "no images"},
				},
			},
		}

		urls := post.InteractiveBlocksImageURLs(true)

		// Markdown images inside text blocks are not returned here; they are gathered with Post.AllStrings in getEmbedsAndImages.
		assert.ElementsMatch(t, []string{
			"https://example.com/mm_direct1.png",
			"https://example.com/mm_direct2.png",
			"https://example.com/mm_nested.png",
			"https://example.com/mm_nested2.png",
			"https://example.com/bk_top1.png",
			"https://example.com/bk_top2.png",
			"https://example.com/bk_accessory.png",
			"https://example.com/ac_card1_a.png",
			"https://example.com/ac_card1_b.png",
			"https://example.com/ac_card2.png",
			"https://example.com/attach_main.png",
			"https://example.com/attach_thumb.png",
			"https://example.com/attach_author.png",
			"https://example.com/attach_footer.png",
			"https://example.com/attach_second.png",
		}, urls)
	})

	t.Run("attachment URLs only when mmBlocksEnabled is false", func(t *testing.T) {
		post := &Post{
			Props: StringInterface{
				PostPropsMmBlocks: []any{
					map[string]any{"type": "image", "url": "https://example.com/mm.png"},
				},
				PostPropsAttachments: []*MessageAttachment{
					{ImageURL: "https://example.com/attach_main.png"},
				},
			},
		}
		urls := post.InteractiveBlocksImageURLs(false)
		assert.ElementsMatch(t, []string{"https://example.com/attach_main.png"}, urls)
	})
}