import prisma from "./prisma";
import { lineClient } from "./lineClient";

export async function sendOrderCreatedNotification(orderId: number) {
  try {
    const order = await prisma.order.findUnique({
      where: { id: orderId },
      include: { items: true, customer: true }
    });

    if (!order || !order.customer?.lineUserId) {
      console.log(`[Notification] Order #${orderId} has no associated lineUserId or does not exist.`);
      return;
    }

    const settings = await prisma.storeSettings.findFirst();
    const bankName = settings?.bankName || "KASIKORNBANK (KBANK)";
    const bankAccountNumber = settings?.bankAccountNumber || "012-3-45678-9";
    const bankAccountName = settings?.bankAccountName || "HomAroma Co., Ltd.";

    const itemContents = order.items.map(item => ({
      type: "box",
      layout: "horizontal",
      contents: [
        {
          type: "text",
          text: `${item.productName}${item.variantName ? ` (${item.variantName})` : ""} x ${item.quantity}`,
          size: "sm",
          color: "#333333",
          flex: 3,
          wrap: true
        },
        {
          type: "text",
          text: `฿${item.priceAtPurchase * item.quantity}`,
          size: "sm",
          color: "#1C3F3A",
          weight: "bold",
          align: "end",
          flex: 1
        }
      ]
    }));

    const flexMessage: any = {
      type: "flex",
      altText: `HomAroma: คำสั่งซื้อ #${order.id} ได้รับแล้ว กรุณาชำระเงิน`,
      contents: {
        type: "bubble",
        header: {
          type: "box",
          layout: "vertical",
          backgroundColor: "#1C3F3A",
          contents: [
            {
              type: "text",
              text: "HomAroma Official",
              color: "#D4B16A",
              weight: "bold",
              size: "xs"
            },
            {
              type: "text",
              text: "ได้รับคำสั่งซื้อของคุณแล้ว",
              color: "#FFFFFF",
              weight: "bold",
              size: "md",
              margin: "sm"
            }
          ]
        },
        body: {
          type: "box",
          layout: "vertical",
          contents: [
            {
              type: "text",
              text: `หมายเลขออเดอร์: #HM-${order.id}`,
              weight: "bold",
              size: "sm",
              color: "#333333"
            },
            {
              type: "separator",
              margin: "md"
            },
            {
              type: "box",
              layout: "vertical",
              margin: "md",
              spacing: "sm",
              contents: [
                {
                  type: "box",
                  layout: "horizontal",
                  contents: [
                    {
                      type: "text",
                      text: "รายการสินค้า",
                      size: "xs",
                      color: "#888888",
                      flex: 3
                    },
                    {
                      type: "text",
                      text: "ยอดรวม",
                      size: "xs",
                      color: "#888888",
                      align: "end",
                      flex: 1
                    }
                  ]
                },
                ...itemContents
              ]
            },
            {
              type: "separator",
              margin: "md"
            },
            {
              type: "box",
              layout: "horizontal",
              margin: "md",
              contents: [
                {
                  type: "text",
                  text: "ยอดชำระสุทธิ (รวมค่าส่ง)",
                  size: "sm",
                  color: "#555555",
                  weight: "bold",
                  flex: 3
                },
                {
                  type: "text",
                  text: `฿${order.totalAmount}`,
                  size: "sm",
                  color: "#1C3F3A",
                  weight: "bold",
                  align: "end",
                  flex: 1
                }
              ]
            },
            {
              type: "separator",
              margin: "md"
            },
            {
              type: "box",
              layout: "vertical",
              margin: "md",
              contents: [
                {
                  type: "text",
                  text: "🏦 ช่องทางการชำระเงินโอนเงิน:",
                  size: "xs",
                  color: "#555555",
                  weight: "bold"
                },
                {
                  type: "text",
                  text: `${bankName} (${bankAccountNumber})`,
                  size: "xs",
                  color: "#1C3F3A",
                  margin: "xs",
                  weight: "bold"
                },
                {
                  type: "text",
                  text: `ชื่อบัญชี: ${bankAccountName}`,
                  size: "xs",
                  color: "#555555"
                }
              ]
            }
          ]
        },
        footer: {
          type: "box",
          layout: "vertical",
          spacing: "sm",
          contents: [
            {
              type: "button",
              style: "primary",
              color: "#1C3F3A",
              action: {
                "type": "uri",
                "label": "แนบสลิปชำระเงิน",
                "uri": `https://spa.homaroma.shop/order-success?id=${order.id}`
              }
            },
            {
              type: "button",
              style: "link",
              height: "sm",
              action: {
                "type": "uri",
                "label": "ติดตามสถานะออเดอร์",
                "uri": "https://spa.homaroma.shop/track-order"
              }
            }
          ]
        }
      }
    };

    await lineClient.pushMessage({
      to: order.customer.lineUserId,
      messages: [flexMessage]
    });
    console.log(`[Notification] OrderCreated notification sent for Order #${orderId}`);
  } catch (err) {
    console.error(`[Notification] Failed to send OrderCreated notification for Order #${orderId}:`, err);
  }
}

export async function sendPaymentConfirmedNotification(orderId: number) {
  try {
    const order = await prisma.order.findUnique({
      where: { id: orderId },
      include: { customer: true }
    });

    if (!order || !order.customer?.lineUserId) {
      console.log(`[Notification] Order #${orderId} has no associated lineUserId or does not exist.`);
      return;
    }

    const flexMessage: any = {
      type: "flex",
      altText: "HomAroma: ได้รับการชำระเงินเรียบร้อยแล้ว",
      contents: {
        type: "bubble",
        body: {
          type: "box",
          layout: "vertical",
          contents: [
            {
              type: "box",
              layout: "vertical",
              alignItems: "center",
              contents: [
                {
                  type: "text",
                  text: "✨ ชำระเงินสำเร็จ ✨",
                  weight: "bold",
                  size: "xl",
                  color: "#1C3F3A"
                },
                {
                  type: "text",
                  text: `ขอขอบคุณสำหรับคำสั่งซื้อออเดอร์ #HM-${order.id}`,
                  size: "xs",
                  color: "#888888",
                  margin: "xs"
                }
              ]
            },
            {
              type: "box",
              layout: "vertical",
              backgroundColor: "#F4F6F5",
              margin: "lg",
              paddingAll: "md",
              cornerRadius: "md",
              contents: [
                {
                  type: "box",
                  layout: "horizontal",
                  contents: [
                    {
                      type: "text",
                      text: "ได้รับแต้มครั้งนี้",
                      size: "sm",
                      color: "#555555"
                    },
                    {
                      type: "text",
                      text: `+${order.pointsEarned} แต้ม`,
                      weight: "bold",
                      size: "sm",
                      color: "#1C3F3A",
                      align: "end"
                    }
                  ]
                },
                {
                  type: "box",
                  layout: "horizontal",
                  margin: "xs",
                  contents: [
                    {
                      type: "text",
                      text: "แต้มสะสมรวมล่าสุด",
                      size: "sm",
                      color: "#555555"
                    },
                    {
                      type: "text",
                      text: `${order.customer.points} แต้ม`,
                      weight: "bold",
                      size: "sm",
                      color: "#D4B16A",
                      align: "end"
                    }
                  ]
                }
              ]
            }
          ]
        },
        footer: {
          type: "box",
          layout: "vertical",
          contents: [
            {
              type: "button",
              style: "primary",
              color: "#1C3F3A",
              action: {
                "type": "uri",
                "label": "แลกของรางวัล & คูปองสะสม",
                "uri": "https://spa.homaroma.shop/profile"
              }
            }
          ]
        }
      }
    };

    await lineClient.pushMessage({
      to: order.customer.lineUserId,
      messages: [flexMessage]
    });
    console.log(`[Notification] PaymentConfirmed notification sent for Order #${orderId}`);
  } catch (err) {
    console.error(`[Notification] Failed to send PaymentConfirmed notification for Order #${orderId}:`, err);
  }
}

export async function sendOrderShippedNotification(orderId: number) {
  try {
    const order = await prisma.order.findUnique({
      where: { id: orderId },
      include: { customer: true }
    });

    if (!order || !order.customer?.lineUserId) {
      console.log(`[Notification] Order #${orderId} has no associated lineUserId or does not exist.`);
      return;
    }

    const flexMessage: any = {
      type: "flex",
      altText: "HomAroma: สินค้าของคุณอยู่ระหว่างจัดส่ง",
      contents: {
        type: "bubble",
        header: {
          type: "box",
          layout: "vertical",
          backgroundColor: "#1C3F3A",
          contents: [
            {
              type: "text",
              text: "ออเดอร์ของคุณกำลังเดินทาง 🚚",
              color: "#FFFFFF",
              weight: "bold",
              size: "md"
            }
          ]
        },
        body: {
          type: "box",
          layout: "vertical",
          spacing: "md",
          contents: [
            {
              type: "box",
              layout: "horizontal",
              contents: [
                {
                  type: "text",
                  text: "หมายเลขออเดอร์:",
                  size: "sm",
                  color: "#888888",
                  flex: 2
                },
                {
                  type: "text",
                  text: `#HM-${order.id}`,
                  size: "sm",
                  color: "#333333",
                  weight: "bold",
                  flex: 3
                }
              ]
            },
            {
              type: "box",
              layout: "horizontal",
              contents: [
                {
                  type: "text",
                  text: "หมายเลขพัสดุ:",
                  size: "sm",
                  color: "#888888",
                  flex: 2
                },
                {
                  type: "text",
                  text: order.trackingNo || "อยู่ระหว่างเข้ารับพัสดุ",
                  size: "sm",
                  color: "#1C3F3A",
                  weight: "bold",
                  flex: 3
                }
              ]
            }
          ]
        },
        footer: {
          type: "box",
          layout: "vertical",
          contents: [
            {
              type: "button",
              style: "primary",
              color: "#1C3F3A",
              action: {
                "type": "uri",
                "label": "เช็คสถานะการจัดส่ง",
                "uri": "https://spa.homaroma.shop/track-order"
              }
            }
          ]
        }
      }
    };

    await lineClient.pushMessage({
      to: order.customer.lineUserId,
      messages: [flexMessage]
    });
    console.log(`[Notification] OrderShipped notification sent for Order #${orderId}`);
  } catch (err) {
    console.error(`[Notification] Failed to send OrderShipped notification for Order #${orderId}:`, err);
  }
}

export async function sendOrderCancelledNotification(orderId: number) {
  try {
    const order = await prisma.order.findUnique({
      where: { id: orderId },
      include: { customer: true }
    });

    if (!order || !order.customer?.lineUserId) {
      console.log(`[Notification] Order #${orderId} has no associated lineUserId or does not exist.`);
      return;
    }

    const flexMessage: any = {
      type: "flex",
      altText: "HomAroma: คำสั่งซื้อของคุณถูกยกเลิกแล้ว",
      contents: {
        type: "bubble",
        header: {
          type: "box",
          layout: "vertical",
          backgroundColor: "#8C2A2A",
          contents: [
            {
              type: "text",
              text: "คำสั่งซื้อถูกยกเลิก 🚫",
              color: "#FFFFFF",
              weight: "bold",
              size: "md"
            }
          ]
        },
        body: {
          type: "box",
          layout: "vertical",
          spacing: "md",
          contents: [
            {
              type: "text",
              text: `คำสั่งซื้อหมายเลข #HM-${order.id} ได้ถูกยกเลิกแล้ว เนื่องจากเกินกำหนดเวลาชำระเงิน หรือสิทธิประโยชน์บางประการ หรือตามความประสงค์ของคุณ`,
              size: "sm",
              color: "#333333",
              wrap: true
            },
            ...(order.pointsUsed > 0 ? [
              {
                type: "text",
                text: `* ระบบได้ทำการคืนคะแนนสะสมจำนวน ${order.pointsUsed} แต้มเข้าบัญชีของคุณเรียบร้อยแล้ว`,
                size: "xs",
                color: "#8C2A2A",
                weight: "bold",
                margin: "md"
              }
            ] : [])
          ]
        },
        footer: {
          type: "box",
          layout: "vertical",
          contents: [
            {
              type: "button",
              style: "primary",
              color: "#1C3F3A",
              action: {
                "type": "uri",
                "label": "ช้อปต่ออีกครั้ง",
                "uri": "https://spa.homaroma.shop/"
              }
            }
          ]
        }
      }
    };

    await lineClient.pushMessage({
      to: order.customer.lineUserId,
      messages: [flexMessage]
    });
    console.log(`[Notification] OrderCancelled notification sent for Order #${orderId}`);
  } catch (err) {
    console.error(`[Notification] Failed to send OrderCancelled notification for Order #${orderId}:`, err);
  }
}

export async function markOrderAsPaid(orderId: number) {
  try {
    const order = await prisma.order.findUnique({
      where: { id: orderId }
    });

    if (!order) {
      console.log(`[Payment] Order #${orderId} not found in markOrderAsPaid.`);
      return;
    }

    if (order.status === "PAID") {
      console.log(`[Payment] Order #${orderId} is already PAID.`);
      return;
    }

    // 1. Update status to PAID
    await prisma.order.update({
      where: { id: orderId },
      data: { status: "PAID" }
    });

    // 2. Grant points
    if (order.customerId && order.pointsEarned > 0) {
      await prisma.customer.update({
        where: { id: order.customerId },
        data: { points: { increment: order.pointsEarned } }
      });
      console.log(`[Payment] Granted ${order.pointsEarned} points to Customer #${order.customerId} for Order #${orderId}`);
    }

    // 3. Send payment notification
    await sendPaymentConfirmedNotification(orderId);
  } catch (err) {
    console.error(`[Payment] Error in markOrderAsPaid for Order #${orderId}:`, err);
  }
}