#!/usr/bin/env python3
"""Find and analyze duplicate contacts in Barbara Bardach's Main Contacts folder."""

import subprocess
import json
import sys
from collections import defaultdict

TENANT_ID = "dd4a82e8-85a3-44ac-8800-07945ab4d95f"
CLIENT_ID = "fabb3421-8b34-484b-bc17-e46de9703418"
CLIENT_SECRET = "~QJ8Q~NyQSs4OcGqHZyPrA2CVnq9KBfKiimntbMO"
USER = "barbara@bardach.net"

SELECT_FIELDS = "id,displayName,givenName,surname,emailAddresses,homePhones,businessPhones,companyName,jobTitle,personalNotes,homeAddress,businessAddress,birthday,lastModifiedDateTime"


def curl_json(args):
    """Run curl and return parsed JSON."""
    result = subprocess.run(
        ["curl", "-s", "-S"] + args,
        capture_output=True, text=True, timeout=60
    )
    if result.returncode != 0:
        print(f"[ERROR] curl failed: {result.stderr}", file=sys.stderr)
        sys.exit(1)
    try:
        return json.loads(result.stdout)
    except json.JSONDecodeError:
        print(f"[ERROR] Invalid JSON response: {result.stdout[:500]}", file=sys.stderr)
        sys.exit(1)


def get_token():
    """Get access token using client credentials flow."""
    url = f"https://login.microsoftonline.com/{TENANT_ID}/oauth2/v2.0/token"
    data = (
        f"grant_type=client_credentials"
        f"&client_id={CLIENT_ID}"
        f"&client_secret={CLIENT_SECRET}"
        f"&scope=https%3A%2F%2Fgraph.microsoft.com%2F.default"
    )
    resp = curl_json([
        "-X", "POST", url,
        "-H", "Content-Type: application/x-www-form-urlencoded",
        "-d", data
    ])
    if "access_token" not in resp:
        print(f"[ERROR] Token request failed: {json.dumps(resp, indent=2)}", file=sys.stderr)
        sys.exit(1)
    print("[OK] Got access token")
    return resp["access_token"]


def get_all_contacts(token):
    """Pull all contacts from the default contacts folder with pagination."""
    contacts = []
    url = (
        f"https://graph.microsoft.com/v1.0/users/{USER}/contacts"
        f"?$select={SELECT_FIELDS}&$top=250"
    )
    page = 1
    while url:
        print(f"  Fetching page {page}...")
        resp = curl_json([
            "-H", f"Authorization: Bearer {token}",
            "-H", "Content-Type: application/json",
            url
        ])
        if "error" in resp:
            print(f"[ERROR] Graph API error: {json.dumps(resp['error'], indent=2)}", file=sys.stderr)
            sys.exit(1)
        batch = resp.get("value", [])
        contacts.extend(batch)
        print(f"  Got {len(batch)} contacts (total: {len(contacts)})")
        url = resp.get("@odata.nextLink")
        page += 1
    return contacts


def count_filled_fields(contact):
    """Count how many fields have meaningful data."""
    score = 0
    for key in ["givenName", "surname", "companyName", "jobTitle", "birthday"]:
        if contact.get(key):
            score += 1
    if contact.get("personalNotes") and contact["personalNotes"].strip():
        score += 2  # notes are valuable
    for key in ["emailAddresses", "homePhones", "businessPhones"]:
        val = contact.get(key)
        if val and len(val) > 0:
            score += len(val)
    for key in ["homeAddress", "businessAddress"]:
        addr = contact.get(key)
        if addr and any(addr.get(f) for f in ["street", "city", "state", "postalCode"]):
            score += 1
    # Prefer more recently modified
    return score


def summarize_differences(contacts):
    """Summarize what differs between duplicate contacts."""
    diffs = []
    fields_to_compare = [
        "givenName", "surname", "companyName", "jobTitle", "birthday",
        "personalNotes"
    ]
    list_fields = ["emailAddresses", "homePhones", "businessPhones"]
    addr_fields = ["homeAddress", "businessAddress"]

    for field in fields_to_compare:
        values = set()
        for c in contacts:
            v = c.get(field)
            if v:
                values.add(str(v).strip())
        if len(values) > 1:
            diffs.append(f"{field}: {values}")
        elif len(values) == 1:
            pass  # same across all
        # if 0, nobody has it

    for field in list_fields:
        all_vals = []
        for c in contacts:
            v = c.get(field, []) or []
            if field == "emailAddresses":
                items = sorted([e.get("address", "") for e in v if e.get("address")])
            else:
                items = sorted(v) if v else []
            all_vals.append(tuple(items))
        if len(set(all_vals)) > 1:
            diffs.append(f"{field} differ: {[list(x) for x in all_vals]}")

    for field in addr_fields:
        addrs = []
        for c in contacts:
            a = c.get(field) or {}
            parts = [a.get("street",""), a.get("city",""), a.get("state",""), a.get("postalCode","")]
            addrs.append(tuple(p.strip() if p else "" for p in parts))
        if len(set(addrs)) > 1:
            diffs.append(f"{field} differ")

    # Check lastModifiedDateTime
    dates = [c.get("lastModifiedDateTime", "unknown") for c in contacts]
    if len(set(dates)) > 1:
        diffs.append(f"lastModified: {dates}")

    return "; ".join(diffs) if diffs else "No differences found (exact duplicates)"


def analyze_duplicates(contacts):
    """Group by displayName and find duplicates."""
    groups = defaultdict(list)
    for c in contacts:
        name = (c.get("displayName") or "").strip().lower()
        if name:
            groups[name].append(c)

    duplicate_groups = []
    for name, group in sorted(groups.items()):
        if len(group) < 2:
            continue
        # Score each contact
        scored = [(count_filled_fields(c), c.get("lastModifiedDateTime", ""), c) for c in group]
        # Sort by score desc, then by lastModified desc
        scored.sort(key=lambda x: (x[0], x[1]), reverse=True)
        keeper = scored[0][2]
        deletable = [s[2] for s in scored[1:]]
        differences = summarize_differences(group)

        duplicate_groups.append({
            "name": group[0].get("displayName", name),
            "count": len(group),
            "contacts": group,
            "keeper_id": keeper["id"],
            "delete_ids": [c["id"] for c in deletable],
            "differences": differences,
            "_scores": [(s[0], s[2]["id"][:8]) for s in scored]
        })

    return duplicate_groups


def print_report(contacts, dup_groups):
    """Print a detailed report."""
    total_removable = sum(len(g["delete_ids"]) for g in dup_groups)

    print("\n" + "=" * 80)
    print(f"DUPLICATE CONTACTS ANALYSIS - Barbara Bardach")
    print("=" * 80)
    print(f"Total contacts in Main Contacts: {len(contacts)}")
    print(f"Duplicate groups found: {len(dup_groups)}")
    print(f"Total removable contacts: {total_removable}")
    print("=" * 80)

    for i, g in enumerate(dup_groups, 1):
        print(f"\n--- Group {i}: {g['name']} ({g['count']} contacts) ---")
        for j, c in enumerate(g["contacts"]):
            is_keeper = c["id"] == g["keeper_id"]
            marker = "[KEEP]" if is_keeper else "[DELETE]"
            score = [s[0] for s in g["_scores"] if s[1] == c["id"][:8]][0] if g.get("_scores") else "?"

            print(f"  {marker} (score={score}) id={c['id'][:12]}...")
            print(f"    displayName: {c.get('displayName')}")
            print(f"    givenName: {c.get('givenName')}  surname: {c.get('surname')}")

            emails = c.get("emailAddresses") or []
            if emails:
                print(f"    emails: {[e.get('address') for e in emails]}")

            hphones = c.get("homePhones") or []
            if hphones:
                print(f"    homePhones: {hphones}")

            bphones = c.get("businessPhones") or []
            if bphones:
                print(f"    businessPhones: {bphones}")

            if c.get("companyName"):
                print(f"    company: {c['companyName']}")
            if c.get("jobTitle"):
                print(f"    jobTitle: {c['jobTitle']}")
            if c.get("birthday"):
                print(f"    birthday: {c['birthday']}")

            for addr_field in ["homeAddress", "businessAddress"]:
                addr = c.get(addr_field) or {}
                parts = [addr.get(f, "") for f in ["street", "city", "state", "postalCode"]]
                if any(p for p in parts):
                    print(f"    {addr_field}: {', '.join(p for p in parts if p)}")

            notes = c.get("personalNotes", "")
            if notes and notes.strip():
                preview = notes.strip()[:80].replace("\n", " ")
                print(f"    notes: {preview}{'...' if len(notes.strip()) > 80 else ''}")

            print(f"    lastModified: {c.get('lastModifiedDateTime')}")

        print(f"  Differences: {g['differences']}")

    return total_removable


def main():
    print("[INFO] Starting duplicate contact analysis for Barbara Bardach")

    # Step 1: Get token
    token = get_token()

    # Step 2+3: Get all contacts from default contacts folder
    print("[INFO] Fetching all contacts from Main Contacts folder...")
    contacts = get_all_contacts(token)
    print(f"[OK] Retrieved {len(contacts)} total contacts")

    if not contacts:
        print("[WARNING] No contacts found!")
        sys.exit(0)

    # Step 4+5: Find duplicates
    print("[INFO] Analyzing duplicates...")
    dup_groups = analyze_duplicates(contacts)

    # Step 6+7: Print report
    total_removable = print_report(contacts, dup_groups)

    # Step 8: Save analysis JSON
    # Remove internal _scores from output
    output_groups = []
    for g in dup_groups:
        out = dict(g)
        out.pop("_scores", None)
        output_groups.append(out)

    analysis = {
        "total_contacts": len(contacts),
        "duplicate_groups": len(dup_groups),
        "total_removable": total_removable,
        "groups": output_groups
    }

    output_path = r"D:\ClaudeTools\temp\bardach_main_dupes_analysis.json"
    with open(output_path, "w", encoding="utf-8") as f:
        json.dump(analysis, f, indent=2, default=str)
    print(f"\n[OK] Analysis saved to {output_path}")


if __name__ == "__main__":
    main()