// Copyright (c) 2026 Lark Technologies Pte. Ltd.
// SPDX-License-Identifier: MIT

package sheets

import (
	"strings"
	"testing"

	"github.com/larksuite/cli/shortcuts/common"
)

// TestSheetStructureShortcuts_DryRun covers all 8 shortcuts in
// lark_sheet_sheet_structure (sheet-info + 7 dim-*) and verifies that the
// CLI's A1-style --range / --position / --count flags map straight through
// to the tool's `range` / `position` / `count` fields (or are normalised
// per shortcut's wire shape).
func TestSheetStructureShortcuts_DryRun(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name      string
		sc        common.Shortcut
		args      []string
		toolName  string
		wantInput map[string]interface{}
	}{
		{
			name:     "+sheet-info with include single category → narrow info_type",
			sc:       SheetInfo,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--include", "row_heights,col_widths"},
			toolName: "get_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"sheet_id":  testSheetID,
				"info_type": "row_heights_column_widths",
			},
		},
		{
			name:     "+sheet-info with mixed include → all",
			sc:       SheetInfo,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--include", "row_heights,merges"},
			toolName: "get_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"sheet_id":  testSheetID,
				"info_type": "all",
			},
		},
		{
			name:     "+dim-insert row position=6 count=3 inherit-before",
			sc:       DimInsert,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--position", "6", "--count", "3", "--inherit-style", "before"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "insert",
				"sheet_id":  testSheetID,
				"position":  "6",
				"count":     float64(3),
				"side":      "before",
			},
		},
		{
			name:     "+dim-insert column position=C count=2",
			sc:       DimInsert,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--position", "C", "--count", "2"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "insert",
				"sheet_id":  testSheetID,
				"position":  "C",
				"count":     float64(2),
			},
		},
		{
			name:     "+dim-delete column B:D",
			sc:       DimDelete,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "B:D"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "delete",
				"sheet_id":  testSheetID,
				"range":     "B:D",
			},
		},
		{
			name:     "+dim-hide row 3:5",
			sc:       DimHide,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "3:5"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "hide",
				"sheet_id":  testSheetID,
				"range":     "3:5",
			},
		},
		{
			name:     "+dim-unhide column AA:AC",
			sc:       DimUnhide,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "AA:AC"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "unhide",
				"sheet_id":  testSheetID,
				"range":     "AA:AC",
			},
		},
		{
			name:     "+dim-freeze row count=2 → freeze_rows",
			sc:       DimFreeze,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--dimension", "row", "--count", "2"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":    testToken,
				"operation":   "freeze",
				"sheet_id":    testSheetID,
				"freeze_rows": float64(2),
			},
		},
		{
			name:     "+dim-freeze count=0 → unfreeze",
			sc:       DimFreeze,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--dimension", "column", "--count", "0"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "unfreeze",
				"sheet_id":  testSheetID,
			},
		},
		{
			name:     "+dim-group row 1:5 fold",
			sc:       DimGroup,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "1:5", "--group-state", "fold"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":    testToken,
				"operation":   "group",
				"sheet_id":    testSheetID,
				"range":       "1:5",
				"group_state": "fold",
			},
		},
		{
			name:     "+dim-ungroup row 1:5",
			sc:       DimUngroup,
			args:     []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "1:5"},
			toolName: "modify_sheet_structure",
			wantInput: map[string]interface{}{
				"excel_id":  testToken,
				"operation": "ungroup",
				"sheet_id":  testSheetID,
				"range":     "1:5",
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()
			body := parseDryRunBody(t, tt.sc, tt.args)
			got := decodeToolInput(t, body, tt.toolName)
			assertInputEquals(t, got, tt.wantInput)
		})
	}
}

// TestDimRange_Validation covers the A1 range parser's edge cases routed
// through +dim-hide (any --range shortcut works; we just need to exercise
// the validator).
func TestDimRange_Validation(t *testing.T) {
	t.Parallel()
	cases := []struct {
		name string
		args []string
		want string
	}{
		{
			name: "end before start",
			args: []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "5:3", "--dry-run"},
			want: "end position is before start",
		},
		{
			name: "mix row+column",
			args: []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "3:C", "--dry-run"},
			want: "cannot mix row",
		},
		{
			name: "invalid characters",
			args: []string{"--url", testURL, "--sheet-id", testSheetID, "--range", "A1:B2", "--dry-run"},
			want: "expected pure digits",
		},
	}
	for _, tt := range cases {
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()
			_, _, err := runShortcutCapturingErr(t, DimHide, tt.args)
			requireValidation(t, err, tt.want)
		})
	}
}

// TestDimMove_DryRun verifies the native v3 move_dimension payload shape.
// CLI's --source-range "1:3" (1-based inclusive) is parsed into
// source.{start_index=0, end_index=2} (0-based inclusive), and sheet_id is
// carried in the path, not the body. --target "11" → destination_index=10.
func TestDimMove_DryRun(t *testing.T) {
	t.Parallel()
	calls := parseDryRunAPI(t, DimMove, []string{
		"--url", testURL, "--sheet-id", testSheetID,
		"--source-range", "1:3", "--target", "11",
	})
	if len(calls) != 1 {
		t.Fatalf("api calls = %d, want 1", len(calls))
	}
	c := calls[0].(map[string]interface{})
	wantURL := "/sheets/v3/spreadsheets/" + testToken + "/sheets/" + testSheetID + "/move_dimension"
	if !strings.Contains(c["url"].(string), wantURL) {
		t.Errorf("url = %v, want suffix %v", c["url"], wantURL)
	}
	body, _ := c["body"].(map[string]interface{})
	src, _ := body["source"].(map[string]interface{})
	if src["major_dimension"] != "ROWS" {
		t.Errorf("source.major_dimension = %v, want ROWS", src["major_dimension"])
	}
	if src["start_index"].(float64) != 0 {
		t.Errorf("start_index = %v, want 0", src["start_index"])
	}
	if src["end_index"].(float64) != 2 {
		t.Errorf("end_index = %v, want 2 (0-based inclusive)", src["end_index"])
	}
	if body["destination_index"].(float64) != 10 {
		t.Errorf("destination_index = %v, want 10 (target \"11\" → 0-based 10)", body["destination_index"])
	}
}

// TestDimMove_Column exercises the column path: --source-range "C:F" →
// COLUMNS / start=2 / end=5; --target "H" → destination_index=7.
func TestDimMove_Column(t *testing.T) {
	t.Parallel()
	calls := parseDryRunAPI(t, DimMove, []string{
		"--url", testURL, "--sheet-id", testSheetID,
		"--source-range", "C:F", "--target", "H",
	})
	c := calls[0].(map[string]interface{})
	body, _ := c["body"].(map[string]interface{})
	src, _ := body["source"].(map[string]interface{})
	if src["major_dimension"] != "COLUMNS" {
		t.Errorf("major_dimension = %v, want COLUMNS", src["major_dimension"])
	}
	if src["start_index"].(float64) != 2 || src["end_index"].(float64) != 5 {
		t.Errorf("source = %v, want start=2 end=5", src)
	}
	if body["destination_index"].(float64) != 7 {
		t.Errorf("destination_index = %v, want 7", body["destination_index"])
	}
}

// TestDimMove_MismatchedDimension verifies that mixing source row + target
// column (or vice versa) is rejected at Validate.
func TestDimMove_MismatchedDimension(t *testing.T) {
	t.Parallel()
	_, _, err := runShortcutCapturingErr(t, DimMove, []string{
		"--url", testURL, "--sheet-id", testSheetID,
		"--source-range", "1:3", "--target", "H", "--dry-run",
	})
	requireValidation(t, err, "must match --source-range")
}

// TestParseA1Range covers parser edge cases directly.
func TestParseA1Range(t *testing.T) {
	t.Parallel()
	cases := []struct {
		in      string
		dim     string
		start   int
		end     int
		wantErr bool
	}{
		{"3:7", "row", 2, 6, false},
		{"5", "row", 4, 4, false},
		{"C:F", "column", 2, 5, false},
		{"C", "column", 2, 2, false},
		{"aa:ac", "column", 26, 28, false}, // lower-case letters accepted
		{"", "", 0, 0, true},
		{"3:C", "", 0, 0, true},
		{"7:3", "", 0, 0, true},
		{"A1", "", 0, 0, true}, // cell ref, not a row/col range
		{"3:5:7", "", 0, 0, true},
		{"0", "", 0, 0, true}, // rows are 1-based
	}
	for _, c := range cases {
		t.Run(c.in, func(t *testing.T) {
			t.Parallel()
			dim, start, end, err := parseA1Range(c.in)
			if c.wantErr {
				if err == nil {
					t.Errorf("parseA1Range(%q) = (%q, %d, %d, nil), want error", c.in, dim, start, end)
				}
				return
			}
			if err != nil {
				t.Fatalf("parseA1Range(%q) unexpected error: %v", c.in, err)
			}
			if dim != c.dim || start != c.start || end != c.end {
				t.Errorf("parseA1Range(%q) = (%q, %d, %d), want (%q, %d, %d)", c.in, dim, start, end, c.dim, c.start, c.end)
			}
		})
	}
}

// TestColumnIndexToLetter exercises the corner cases of the letter helper
// (still in use by lark_sheet_workbook.go for absolute column refs).
func TestColumnIndexToLetter(t *testing.T) {
	t.Parallel()
	cases := []struct {
		idx  int
		want string
	}{
		{0, "A"}, {25, "Z"}, {26, "AA"}, {27, "AB"}, {51, "AZ"},
		{52, "BA"}, {701, "ZZ"}, {702, "AAA"},
	}
	for _, c := range cases {
		if got := columnIndexToLetter(c.idx); got != c.want {
			t.Errorf("columnIndexToLetter(%d) = %q, want %q", c.idx, got, c.want)
		}
	}
}