Module:Mapframe

Documentation for this module may be created at Module:Mapframe/doc

-- Module:OpenStreetMapFrame
local p = {}

local getArgs = require('Module:Arguments').getArgs

-- Default settings
local DEFAULT_WIDTH = 300
local DEFAULT_HEIGHT = 200
local DEFAULT_ZOOM = 10

-- Main function to render the map frame
function p.main(frame)
    local args = getArgs(frame)
    return p.renderMapFrame(args)
end

-- Function to generate the map frame HTML
function p.renderMapFrame(args)
    -- Extract parameters
    local coord = args.coord or args.coordinates
    local zoom = tonumber(args.zoom) or DEFAULT_ZOOM
    local width = tonumber(args.width) or DEFAULT_WIDTH
    local height = tonumber(args.height) or DEFAULT_HEIGHT

    -- Validate coordinates
    if not coord or not coord:match("^[%d.-]+,[%d.-]+$") then
        return '<strong class="error">Error: Invalid coordinates provided.</strong>'
    end

    -- Extract latitude and longitude
    local lat, lon = coord:match("^([%d.-]+),([%d.-]+)$")

    -- Construct the OpenStreetMap tile URL
    local osmTileUrl = string.format("https://tile.openstreetmap.org/%d/%s/%s.png", zoom, lon, lat)

    -- Construct the HTML for the image
    local html = string.format(
        '<img src="%s" alt="Map at coordinates %s" width="%d" height="%d" />',
        osmTileUrl, coord, width, height
    )

    return html
end

-- Export the module's functions
return p