// Name: Postmark Email Fetcher
// Description: Fetch emails from Postmark API with custom subject and time filters
// Author: zacjones93

import "@johnlindquist/kit"

const POSTMARK_API_KEY = await env("POSTMARK_API_KEY", {
  hint: "Get your API key from https://postmarkapp.com/",
  secret: true
})

const subject = await arg("Enter subject to search for:", {
  placeholder: "e.g., Password Reset, Welcome, Order Confirmation",
  hint: "Search will match emails containing this text in the subject"
})

const timeOptions = [
  { name: "Last 24 hours", value: 24 },
  { name: "Last 12 hours", value: 12 },
  { name: "Last 6 hours", value: 6 },
  { name: "Last 3 hours", value: 3 },
  { name: "Last hour", value: 1 }
]

const hoursBack = await arg("Select time range:", timeOptions)

// Calculate the date range
const toDate = new Date()
const fromDate = new Date(toDate.getTime() - (hoursBack * 60 * 60 * 1000))

setLoading(true)

try {
  const response = await get("https://api.postmarkapp.com/messages/outbound", {
    headers: {
      "X-Postmark-Server-Token": POSTMARK_API_KEY,
      "Accept": "application/json"
    },
    params: {
      subject: subject,
      fromdate: fromDate.toISOString(),
      todate: toDate.toISOString(),
      count: 500
    }
  })

  const emails = response.data.Messages || []

  if (emails.length === 0) {
    await div(md(`
# No emails found

No emails with subject containing "${subject}" were found in the last ${hoursBack} hours.

**Search criteria:**
- Subject: ${subject}
- Time range: ${fromDate.toLocaleString()} to ${toDate.toLocaleString()}
    `))
    exit()
  }

  const emailChoices = emails.map(email => ({
    name: `${email.Subject} (${email.To})`,
    description: `Sent: ${new Date(email.SentAt).toLocaleString()} | Status: ${email.Status}`,
    value: email
  }))

  const selectedEmail = await arg("Select an email to view details:", emailChoices)

  const emailDetails = `
# Email Details

**Subject:** ${selectedEmail.Subject}

**From:** ${selectedEmail.From}

**To:** ${selectedEmail.To}

**Sent:** ${new Date(selectedEmail.SentAt).toLocaleString()}

**Status:** ${selectedEmail.Status}

**Message ID:** ${selectedEmail.MessageID}

**Tag:** ${selectedEmail.Tag || 'None'}

---

## Summary

Found **${emails.length}** emails with subject containing "${subject}" in the last ${hoursBack} hours.

**Search performed:** ${new Date().toLocaleString()}
  `.trim()

  await div(md(emailDetails))

} catch (error) {
  await div(md(`
# Error fetching emails

${error.message}

**Possible issues:**
- Invalid API key
- Network connection problem
- API rate limit exceeded
- Invalid date range

Please check your Postmark API key and try again.
  `))
}