# pylint: disable=line-too-long,useless-suppression
# coding=utf-8
# --------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# --------------------------------------------------------------------------

"""
FILE: planetarycomputer_stac_specification.py

DESCRIPTION:
    This sample demonstrates STAC API conformance, catalog operations, and item management:
    - Checking API conformance
    - Getting the landing page
    - Searching collections
    - Searching and querying items with filters, bounding boxes, temporal ranges
    - Working with queryables
    - Creating, updating, and deleting STAC items
    - Creating or replacing STAC items (idempotent operations)
    - Deleting STAC items

USAGE:
    python planetarycomputer_stac_specification.py

    Set the environment variable PLANETARYCOMPUTER_ENDPOINT with your endpoint URL.
    Set the environment variable AZURE_COLLECTION_ID with your collection ID.
"""

import os
import json
import time
from azure.planetarycomputer import PlanetaryComputerProClient
from azure.identity import DefaultAzureCredential
from azure.planetarycomputer.models import (
    StacSearchParameters,
    FilterLanguage,
    StacSearchSortingDirection,
    StacSortExtension,
    StacItem,
)
from azure.core.exceptions import (
    HttpResponseError,
    ResourceExistsError,
    ResourceNotFoundError,
)

import logging

# Enable HTTP request/response logging
logging.getLogger("azure.core.pipeline.policies.http_logging_policy").setLevel(
    logging.ERROR
)
logging.basicConfig(level=logging.INFO)


def get_landing_page(client: PlanetaryComputerProClient):
    """Get the STAC landing page."""
    landing_page = client.stac.get_landing_page()

    for link in landing_page.links[:5]:  # Show first 5 links
        logging.info(f"  - {link.rel}: {link.href}")


def search_collections(client: PlanetaryComputerProClient):
    """Search and list STAC collections."""
    collections = client.stac.list_collections()

    # Show first few collections
    for collection in collections.collections[:3]:
        if collection.description:
            desc = (
                collection.description[:100] + "..."
                if len(collection.description) > 100
                else collection.description
            )
            logging.info(f"  - {collection.id}: {desc}")


def search_items(client: PlanetaryComputerProClient, collection_id):
    """Search STAC items with filters and sorting."""
    # Create Search using StacSearchParameters
    # Using date_time with range format instead of CQL2-JSON temporal filter
    search_post_request = StacSearchParameters(
        collections=[collection_id],
        filter_lang=FilterLanguage.CQL2_JSON,
        filter={
            "op": "s_intersects",
            "args": [
                {"property": "geometry"},
                {
                    "type": "Polygon",
                    "coordinates": [
                        [
                            [-84.46416308610219, 33.6033686729869],
                            [-84.38815071170247, 33.6033686729869],
                            [-84.38815071170247, 33.6713179813099],
                            [-84.46416308610219, 33.6713179813099],
                            [-84.46416308610219, 33.6033686729869],
                        ]
                    ],
                },
            ],
        },
        date_time="2021-01-01T00:00:00Z/2022-12-31T00:00:00Z",
        sort_by=[
            StacSortExtension(
                field="datetime", direction=StacSearchSortingDirection.DESC
            )
        ],
        limit=50,
    )

    # Create Search
    search_post_response = client.stac.search(body=search_post_request)
    logging.info(f"Search returned {len(search_post_response.features)} items")
    logging.info(json.dumps(search_post_response.as_dict()))


def get_sample_stac_item(collection_id: str, item_id: str) -> StacItem:
    """Create a sample STAC item."""
    return StacItem(
        {
            "stac_version": "1.0.0",
            "type": "Feature",
            "id": item_id,
            "collection": collection_id,
            "bbox": [-84.44157, 33.621853, -84.370894, 33.690654],
            "geometry": {
                "type": "Polygon",
                "coordinates": [
                    [
                        [-84.372943, 33.621853],
                        [-84.370894, 33.689211],
                        [-84.439575, 33.690654],
                        [-84.44157, 33.623293],
                        [-84.372943, 33.621853],
                    ]
                ],
            },
            "properties": {
                "gsd": 0.6,
                "datetime": "2021-11-14T16:00:00Z",
                "naip:year": "2021",
                "proj:bbox": [737334.0, 3723324.0, 743706.0, 3730800.0],
                "proj:epsg": 26916,
                "providers": [
                    {
                        "url": "https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/",
                        "name": "USDA Farm Service Agency",
                        "roles": ["producer", "licensor"],
                    }
                ],
                "naip:state": "ga",
                "proj:shape": [12460, 10620],
                "proj:transform": [
                    0.6,
                    0.0,
                    737334.0,
                    0.0,
                    -0.6,
                    3730800.0,
                    0.0,
                    0.0,
                    1.0,
                ],
            },
            "links": [
                {
                    "rel": "collection",
                    "type": "application/json",
                    "href": "https://planetarycomputer.microsoft.com/api/stac/v1/collections/naip",
                },
                {
                    "rel": "root",
                    "href": "./catalog.json",
                    "type": "application/json",
                    "title": "NAIP: National Agriculture Imagery Program",
                },
                {
                    "rel": "parent",
                    "href": "./catalog.json",
                    "type": "application/json",
                    "title": "NAIP: National Agriculture Imagery Program",
                },
            ],
            "assets": {
                "image": {
                    "href": "https://naipeuwest.blob.core.windows.net/naip/v002/ga/2021/ga_060cm_2021/33084/m_3308421_se_16_060_20211114.tif",
                    "type": "image/tiff; application=geotiff; profile=cloud-optimized",
                    "roles": ["data"],
                    "title": "RGBIR COG tile",
                    "eo:bands": [
                        {"name": "Red", "common_name": "red"},
                        {"name": "Green", "common_name": "green"},
                        {"name": "Blue", "common_name": "blue"},
                        {
                            "name": "NIR",
                            "common_name": "nir",
                            "description": "near-infrared",
                        },
                    ],
                },
                "thumbnail": {
                    "href": "https://naipeuwest.blob.core.windows.net/naip/v002/ga/2021/ga_060cm_2021/33084/m_3308421_se_16_060_20211114.200.jpg",
                    "type": "image/jpeg",
                    "roles": ["thumbnail"],
                    "title": "Thumbnail",
                },
                "tilejson": {
                    "title": "TileJSON with default rendering",
                    "href": "https://planetarycomputer.microsoft.com/api/data/v1/item/tilejson.json?collection=naip&item=ga_m_3308421_se_16_060_20211114&assets=image&asset_bidx=image%7C1%2C2%2C3&format=png",
                    "type": "application/json",
                    "roles": ["tiles"],
                },
                "rendered_preview": {
                    "title": "Rendered preview",
                    "rel": "preview",
                    "href": "https://planetarycomputer.microsoft.com/api/data/v1/item/preview.png?collection=naip&item=ga_m_3308421_se_16_060_20211114&assets=image&asset_bidx=image%7C1%2C2%2C3&format=png",
                    "roles": ["overview"],
                    "type": "image/png",
                },
            },
            "stac_extensions": [
                "https://stac-extensions.github.io/eo/v1.0.0/schema.json",
                "https://stac-extensions.github.io/projection/v1.0.0/schema.json",
            ],
        }
    )


def create_stac_item(client: PlanetaryComputerProClient, collection_id, item_id):
    """Create a STAC item."""
    stac_item = get_sample_stac_item(collection_id, item_id)
    stac_item_get_items_response = client.stac.get_item_collection(
        collection_id=collection_id
    )
    for item in stac_item_get_items_response.features:
        logging.error(item.id)

    if any(item.id == stac_item.id for item in stac_item_get_items_response.features):
        logging.info(
            f"Item {stac_item.id} already exists. Deleting it before creating a new one."
        )
        client.stac.begin_delete_item(
            collection_id=collection_id, item_id=stac_item.id, polling=True
        ).result()
        logging.info(f"Deleted item {stac_item.id}. Proceeding to create a new one.")
    else:
        logging.info(f"Item {stac_item.id} does not exist. Proceeding to create it.")

    stac_item.collection = collection_id

    try:
        stac_item_create_response = client.stac.begin_create_item(
            collection_id=collection_id, body=stac_item, polling=True
        )
        stac_item_create_response.result()
        print(f"Created item {item_id}")
    except HttpResponseError as e:
        logging.error(f"Failed to create item {stac_item.id}: {e.message}")
        pass


def update_stac_item(client: PlanetaryComputerProClient, collection_id, item_id):
    """Update a STAC item."""
    stac_item = get_sample_stac_item(collection_id, item_id)
    stac_item.properties["platform"] = "Imagery"

    stac_item_create_or_update_response = client.stac.begin_update_item(
        collection_id=collection_id, item_id=stac_item.id, body=stac_item, polling=True
    )

    stac_item_create_or_update_response.result()
    logging.info(
        f"Updated item {stac_item.id}, platform: {stac_item.properties['platform']}"
    )


def create_or_replace_stac_item(
    client: PlanetaryComputerProClient, collection_id, item_id
):
    """Create or replace a STAC item (idempotent operation).

    This demonstrates using begin_create_or_replace_item which is idempotent:
    - First ensures item exists by creating it with begin_create_item
    - Then demonstrates replace using begin_create_or_replace_item
    - Multiple calls with the same data produce the same result
    """
    # First, create the item using begin_create_item
    stac_item = get_sample_stac_item(collection_id, item_id)

    try:
        create_poller = client.stac.begin_create_item(
            collection_id=collection_id, body=stac_item, polling=True
        )
        create_poller.result()
        logging.info(f"Created item {item_id}")
    except ResourceExistsError:
        logging.info(f"Item {item_id} already exists, continuing...")

    # Verify creation
    created_item = client.stac.get_item(collection_id=collection_id, item_id=item_id)
    logging.info(f"Verified item {created_item.id}")

    # Now demonstrate create_or_replace (replace since item exists)
    stac_item.properties["platform"] = "Imagery Updated"
    stac_item.properties["processing_level"] = "L2"

    replace_poller = client.stac.begin_create_or_replace_item(
        collection_id=collection_id, item_id=item_id, body=stac_item, polling=True
    )
    replace_poller.result()
    logging.info(f"Replaced item {item_id} using create_or_replace")

    # Verify replacement
    replaced_item = client.stac.get_item(collection_id=collection_id, item_id=item_id)
    logging.info(
        f"Verified replaced item, platform: {replaced_item.properties.get('platform', 'N/A')}"
    )


def delete_stac_item(client: PlanetaryComputerProClient, collection_id, item_id):
    """Delete a STAC item.

    This demonstrates using begin_delete_item to remove an item from a collection.
    The operation is asynchronous and returns a poller that can be used to track completion.
    """
    try:
        # Check if item exists before attempting deletion
        existing_item = client.stac.get_item(
            collection_id=collection_id, item_id=item_id
        )
        logging.info(f"Found item {existing_item.id} to delete")

        # Delete the item using begin_delete_item
        delete_poller = client.stac.begin_delete_item(
            collection_id=collection_id, item_id=item_id, polling=True
        )
        delete_poller.result()
        logging.info(f"Successfully deleted item {item_id}")

        # Verify deletion by attempting to retrieve the item
        try:
            client.stac.get_item(collection_id=collection_id, item_id=item_id)
            logging.warning(
                f"Item {item_id} still exists after deletion (may take time to propagate)"
            )
        except ResourceNotFoundError:
            logging.info(f"Verified item {item_id} was successfully deleted")

    except ResourceNotFoundError:
        logging.info(f"Item {item_id} does not exist, nothing to delete")
    except HttpResponseError as e:
        logging.error(f"Failed to delete item {item_id}: {e.message}")
        raise


def get_collection(client: PlanetaryComputerProClient, collection_id):
    """Get a STAC collection."""
    collection = client.stac.get_collection(collection_id=collection_id)
    logging.info(f"Retrieved collection: {collection.id}")


def query_items(client: PlanetaryComputerProClient, collection_id):
    """Query items using CQL2 filters."""
    # Query with filter
    query_options = StacSearchParameters(
        collections=[collection_id],
        filter_lang=FilterLanguage.CQL2_JSON,
        filter={"op": "<", "args": [{"property": "eo:cloud_cover"}, 10]},
        limit=5,
    )

    query_results = client.stac.search(body=query_options)
    if query_results.features:
        for item in query_results.features:
            if item.properties and item.properties.date_time:
                logging.info(f"  - {item.id}: {item.properties.date_time}")

    # Sorted query
    sorted_options = StacSearchParameters(
        collections=[collection_id],
        sort_by=[
            StacSortExtension(
                field="eo:cloud_cover", direction=StacSearchSortingDirection.ASC
            )
        ],
        limit=3,
    )

    sorted_results = client.stac.search(body=sorted_options)

    if sorted_results.features:
        for item in sorted_results.features:
            if item.properties and item.properties.date_time:
                logging.info(f"  - {item.id}: {item.properties.date_time}")


def get_queryables(client: PlanetaryComputerProClient, collection_id):
    """Get queryable properties for a collection."""
    queryables = client.stac.get_collection_queryables(collection_id=collection_id)
    properties = queryables.get("properties")

    if properties:
        for prop_name in list(properties.keys())[:10]:  # Show first 10
            logging.info(
                f"  - {prop_name}: {properties[prop_name].get('description', '')}"
            )


def main():
    # Get configuration from environment
    endpoint = os.environ.get("PLANETARYCOMPUTER_ENDPOINT")
    collection_id = os.environ.get("PLANETARYCOMPUTER_COLLECTION_ID")
    item_id = os.environ.get("PLANETARYCOMPUTER_ITEM_ID")

    if not endpoint:
        raise ValueError("PLANETARYCOMPUTER_ENDPOINT environment variable must be set")

    # Create client
    credential = DefaultAzureCredential()
    client = PlanetaryComputerProClient(
        endpoint=endpoint, credential=credential, logging_enable=False
    )

    # Execute STAC specification operations
    get_landing_page(client)
    search_collections(client)
    search_items(client, collection_id)
    query_items(client, collection_id)
    get_queryables(client, collection_id)

    # Execute STAC item operations
    create_stac_item(client, collection_id, item_id)
    update_stac_item(client, collection_id, item_id)
    create_or_replace_stac_item(client, collection_id, f"{item_id}_replace_demo")
    delete_stac_item(
        client, collection_id, f"{item_id}_replace_demo"
    )  # Clean up the item created above
    get_collection(client, collection_id)


if __name__ == "__main__":
    main()