"use server"

import { getCloudflareContext } from "@opennextjs/cloudflare"
import { getDb } from "@/db"
import { workdayExceptions } from "@/db/schema"
import { eq } from "drizzle-orm"
import { revalidatePath } from "next/cache"
import type {
  WorkdayExceptionData,
  ExceptionCategory,
  ExceptionRecurrence,
} from "@/lib/schedule/types"

export async function getWorkdayExceptions(
  projectId: string
): Promise<WorkdayExceptionData[]> {
  const { env } = await getCloudflareContext()
  const db = getDb(env.DB)

  const rows = await db
    .select()
    .from(workdayExceptions)
    .where(eq(workdayExceptions.projectId, projectId))

  return rows.map((r) => ({
    ...r,
    category: r.category as ExceptionCategory,
    recurrence: r.recurrence as ExceptionRecurrence,
  }))
}

export async function createWorkdayException(
  projectId: string,
  data: {
    title: string
    startDate: string
    endDate: string
    type: string
    category: ExceptionCategory
    recurrence: ExceptionRecurrence
    notes?: string
  }
): Promise<{ success: boolean; error?: string }> {
  try {
    const { env } = await getCloudflareContext()
    const db = getDb(env.DB)
    const now = new Date().toISOString()

    await db.insert(workdayExceptions).values({
      id: crypto.randomUUID(),
      projectId,
      title: data.title,
      startDate: data.startDate,
      endDate: data.endDate,
      type: data.type,
      category: data.category,
      recurrence: data.recurrence,
      notes: data.notes ?? null,
      createdAt: now,
      updatedAt: now,
    })

    revalidatePath(`/dashboard/projects/${projectId}/schedule`)
    return { success: true }
  } catch (error) {
    console.error("Failed to create workday exception:", error)
    return { success: false, error: "Failed to create exception" }
  }
}

export async function updateWorkdayException(
  exceptionId: string,
  data: {
    title?: string
    startDate?: string
    endDate?: string
    type?: string
    category?: ExceptionCategory
    recurrence?: ExceptionRecurrence
    notes?: string | null
  }
): Promise<{ success: boolean; error?: string }> {
  try {
    const { env } = await getCloudflareContext()
    const db = getDb(env.DB)

    const [existing] = await db
      .select()
      .from(workdayExceptions)
      .where(eq(workdayExceptions.id, exceptionId))
      .limit(1)

    if (!existing) return { success: false, error: "Exception not found" }

    await db
      .update(workdayExceptions)
      .set({
        ...(data.title && { title: data.title }),
        ...(data.startDate && { startDate: data.startDate }),
        ...(data.endDate && { endDate: data.endDate }),
        ...(data.type && { type: data.type }),
        ...(data.category && { category: data.category }),
        ...(data.recurrence && { recurrence: data.recurrence }),
        ...(data.notes !== undefined && { notes: data.notes }),
        updatedAt: new Date().toISOString(),
      })
      .where(eq(workdayExceptions.id, exceptionId))

    revalidatePath(
      `/dashboard/projects/${existing.projectId}/schedule`
    )
    return { success: true }
  } catch (error) {
    console.error("Failed to update workday exception:", error)
    return { success: false, error: "Failed to update exception" }
  }
}

export async function deleteWorkdayException(
  exceptionId: string
): Promise<{ success: boolean; error?: string }> {
  try {
    const { env } = await getCloudflareContext()
    const db = getDb(env.DB)

    const [existing] = await db
      .select()
      .from(workdayExceptions)
      .where(eq(workdayExceptions.id, exceptionId))
      .limit(1)

    if (!existing) return { success: false, error: "Exception not found" }

    await db
      .delete(workdayExceptions)
      .where(eq(workdayExceptions.id, exceptionId))

    revalidatePath(
      `/dashboard/projects/${existing.projectId}/schedule`
    )
    return { success: true }
  } catch (error) {
    console.error("Failed to delete workday exception:", error)
    return { success: false, error: "Failed to delete exception" }
  }
}