import assert from "node:assert/strict"
import { describe, it } from "node:test"
import { normalizeImportedTables } from "@/lib/drive/docs-table-import"
import { docsDefaultTableBorder } from "@/lib/drive/docs-table-actions"
import {
  normalizeTableBorderForExport,
  prepareTablesForDocxExport,
} from "@/lib/drive/docs-table-export"
import { buildDocsTableCellStyle, docsTableBorderToCss } from "@/lib/drive/docs-table-styles"

describe("docs-table", () => {
  it("converts DOCX border objects to CSS", () => {
    const css = docsTableBorderToCss({ size: 8, style: "single", color: "#000000" })
    assert.equal(css, "1pt solid #000000")
  })

  it("builds cell style from imported DOCX attrs", () => {
    const style = buildDocsTableCellStyle({
      backgroundColor: "#c9daf8",
      verticalAlign: "middle",
      borderTop: { size: 8, style: "single", color: "#000000" },
    })
    assert.match(style ?? "", /background-color: #c9daf8/)
    assert.match(style ?? "", /vertical-align: middle/)
    assert.match(style ?? "", /border-top: 1pt solid #000000/)
  })

  it("normalizeTableBorderForExport converts CSS border strings", () => {
    const border = normalizeTableBorderForExport("1pt solid #1a73e8")
    assert.equal(border?.style, "single")
    assert.equal(border?.color, "#1a73e8")
    assert.equal(border?.size, 8)
  })

  it("prepareTablesForDocxExport normalizes table attrs for export", () => {
    const prepared = prepareTablesForDocxExport({
      type: "doc",
      content: [
        {
          type: "table",
          attrs: { alignment: "center", layout: "fixed" },
          content: [
            {
              type: "tableRow",
              attrs: { rowHeight: "48px" },
              content: [
                {
                  type: "tableCell",
                  attrs: {
                    colwidth: [120],
                    backgroundColor: "#c9daf8",
                    borderTop: { size: 8, style: "solid", color: "#000000" },
                  },
                  content: [{ type: "paragraph", content: [{ type: "text", text: "A" }] }],
                },
              ],
            },
          ],
        },
      ],
    })

    const table = (prepared.content as Array<Record<string, unknown>>)[0]
    const row = (table.content as Array<Record<string, unknown>>)[0]
    const cell = ((row.content as Array<Record<string, unknown>>)[0].attrs ??
      {}) as Record<string, unknown>
    const borderTop = cell.borderTop as { style?: string }

    assert.equal(borderTop.style, "single")
    assert.deepEqual(cell.colwidth, [120])
    assert.equal(cell.backgroundColor, "#c9daf8")
  })

  it("docsDefaultTableBorder uses DOCX single style", () => {
    const border = docsDefaultTableBorder("#1a73e8")
    assert.equal(border.size, 8)
    assert.equal(border.style, "single")
    assert.equal(border.color, "#1a73e8")
  })

  it("DOCX export round-trips table borders and colors", async () => {
    const content = prepareTablesForDocxExport({
      type: "doc",
      content: [
        {
          type: "table",
          attrs: { alignment: "center", layout: "fixed" },
          content: [
            {
              type: "tableRow",
              content: [
                {
                  type: "tableHeader",
                  attrs: {
                    colwidth: [140],
                    backgroundColor: "#f3f3f3",
                    borderTop: docsDefaultTableBorder("#000000"),
                    borderBottom: docsDefaultTableBorder("#000000"),
                    borderLeft: docsDefaultTableBorder("#000000"),
                    borderRight: docsDefaultTableBorder("#000000"),
                  },
                  content: [{ type: "paragraph", content: [{ type: "text", text: "Titre" }] }],
                },
                {
                  type: "tableCell",
                  attrs: {
                    colwidth: [180],
                    backgroundColor: "#c9daf8",
                    verticalAlign: "middle",
                  },
                  content: [{ type: "paragraph", content: [{ type: "text", text: "Cellule" }] }],
                },
              ],
            },
          ],
        },
      ],
    })

    const { generateDOCX } = await import("@docen/export-docx")
    const blob = await generateDOCX(content, { outputType: "blob" })
    assert.ok(blob instanceof Blob)

    const { parseDOCX } = await import("@docen/import-docx")
    const imported = await parseDOCX(await blob.arrayBuffer())
    const table = ((imported as { content?: unknown[] }).content ?? [])[0] as {
      type?: string
      attrs?: { alignment?: string }
      content?: Array<{ content?: Array<{ type?: string; attrs?: Record<string, unknown> }> }>
    }

    assert.equal(table.type, "table")
    assert.equal(table.attrs?.alignment, "center")

    const cells = table.content?.[0]?.content ?? []
    assert.equal(cells[0]?.type, "tableHeader")
    assert.equal(cells[0]?.attrs?.backgroundColor, "#f3f3f3")
    assert.ok(cells[0]?.attrs?.borderTop)
    assert.equal(cells[1]?.attrs?.backgroundColor, "#c9daf8")
    assert.equal(cells[1]?.attrs?.verticalAlign, "middle")
  })

  it("normalizeImportedTables drops rowspan 0 placeholder cells", () => {
    const normalized = normalizeImportedTables({
      type: "doc",
      content: [
        {
          type: "table",
          content: [
            {
              type: "tableRow",
              content: [
                { type: "tableCell", attrs: { rowspan: 2 }, content: [{ type: "paragraph" }] },
                { type: "tableCell", attrs: { rowspan: 0 }, content: [{ type: "paragraph" }] },
              ],
            },
          ],
        },
      ],
    })

    const table = (normalized.content as Array<Record<string, unknown>>)[0]
    const row = ((table.content as Array<Record<string, unknown>>)[0].content ??
      []) as Array<Record<string, unknown>>
    assert.equal(row.length, 1)
    assert.equal((row[0].attrs as { rowspan?: number }).rowspan, 2)
  })
})