"""Action: find — find a template and return its position (sets ctx['_last_pos'])."""
import os


class Action:
    name = "find"

    def run(self, ctx, params):
        template = params["template"]
        confidence = params.get("confidence", 0.8)
        region = params.get("region")

        tmpl_dir = ctx.get("_templates_dir",
                           os.path.join(os.path.dirname(__file__), "..", "templates"))
        tpl_path = os.path.join(tmpl_dir, template)

        pos = ctx["vision"].find_template(tpl_path, confidence, region)
        ctx["_last_pos"] = pos
        if pos is None:
            ctx["log"].info("find(%s) → not found", template)
        else:
            ctx["log"].info("find(%s) → %s", template, pos)
        return pos